КАРТРИДЖ, ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Настоящее изобретение относится к электрофотографическому устройству формирования изображений (устройству формирования изображений) и картриджу, съемно монтируемому на главном узле устройства формирования изображений. Заявленная группа изобретений включает варианты технологических картриджей. Причем технологический картридж содержит фоточувствительный барабан, проявочный ролик, выполненный с возможностью проявления скрытого изображения, сформированного на фоточувствительном барабане, раму, имеющую первый конец и второй конец, противоположный первому концу относительно осевого направления проявочного ролика, причем рама с возможностью вращения поддерживает фоточувствительный барабан и проявочный ролик, элемент сцепления, функционально связанный с проявочным роликом и включающий в себя выступ, причем элемент сцепления расположен смежно с первым концом рамы, рычаг, подвижный относительно рамы, и толкающий элемент, расположенный смежно с первым концом рамы, причем толкающий элемент является ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Данное изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображения и блоку электрофотографического светочувствительного барабана. Заявленный технологический картридж содержит: i) светочувствительный барабан, вращающийся вокруг оси барабана; ii) приводимый во вращение проявочный валик, выполненный с возможностью проявки скрытого изображения, сформированного на упомянутом светочувствительном барабане; iii) соединительный элемент, предусмотренный на осевом концевом участке упомянутого светочувствительного барабана и вращаемый вокруг оси соединительного элемента для передачи движущей силы упомянутому светочувствительному барабану, причем упомянутый соединительный элемент приспособлен наклоняться относительно упомянутого светочувствительного барабана, так что ось соединительного элемента наклоняется относительно оси барабана; и iv) регулирующую часть, окружающую упомянутый соединительный элемент для ограничения диапазона, в котором наклоняется ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И ЭЛЕКТРОФОТОГРАФИЧЕСКИЙ ФОТОЧУВСТВИТЕЛЬНЫЙ БАРАБАННЫЙ БЛОК

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Технологический картридж (В) предназначен для использования с основным узлом устройства формирования изображений, причем основной узел включает в себя приводной вал (180), и технологический картридж можно удалить из основного узла в направлении, перпендикулярном осевому направлению приводного вала (180), при этом технологический картридж включает в себя: i) фоточувствительный барабан (107), способный вращаться вокруг своей оси; ii) технологическое средство (108, 110), способное воздействовать на барабан; iii) соединительный элемент (150), способный осуществлять сцепление с приводным валом для вращения барабана (107), при этом соединительный элемент способен занимать угловое положение передачи для передачи вращательного усилия на ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Заявленное изобретение относится к технологическому картриджу и к электрофотографическому устройству формирования изображений. Заявленный технологический картридж содержит фоточувствительный барабан; проявочный ролик, сконфигурированный и размещенный с возможностью перемещения между положением контакта, в котором упомянутый проявочный ролик находится в контакте с фоточувствительным барабаном для проявления электростатического скрытого изображения, образованного на упомянутом фоточувствительном барабане, и в разнесенном положении, в котором упомянутый проявочный ролик разнесен на расстояние от упомянутого фоточувствительного барабана с возможностью вращения относительно его оси, и соединительный элемент, предусмотренный прилегающим к одному аксиальному концу упомянутого проявочного ролика. При этом соединительный элемент включает в себя: участок приема движущей силы, сконфигурированный и размещенный для приема движущей силы для вращения упомянутого проявочного ролика с возможностью перемещения ...

БЛОК ЦИЛИНДРА БАРАБАНА, СПОСОБ ПРИКРЕПЛЕНИЯ СВЯЗУЮЩЕГО ЭЛЕМЕНТА И БЛОК БАРАБАНА

Настоящее изобретение относится к блоку цилиндра барабана и блоку барабана, используемым в электрофотографическом устройстве формирования изображения, таком как лазерный принтер. Блок цилиндра барабана, используемый в электрофотографическом устройстве формирования изображения, включает фотопроводящий барабан и фланцевый элемент, при этом фланцевый элемент содержит крепежный участок, закрепленный на конце фотопроводящего барабана, цилиндрический участок, который формирует в себе полый участок, донную поверхность, которая формирует дно полого участка, канавчатый участок, обеспеченный на краю цилиндрического участка, и зубчатый участок, при этом канавчатый участок и часть полого участка, противоположная донной поверхности, открываются наружу в осевом направлении фотопроводящего барабана, канавчатый участок включает первую часть, имеющую первую ширину Z1, и вторую часть, имеющую вторую ширину Z2, где Z1Z2, при этом вторая часть расположена на наружной стороне, нежели первая часть, в осевом ...

ПРОЯВОЧНЫЙ КАРТРИДЖ, ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Группа изобретений относится к области печатного оборудования и, в частности, к картриджу и электрофотографическому устройству. Технологический картридж включает в себя соединительный элемент барабана, проявочный соединительный элемент и контактирующий элемент. Причем технологический картридж содержит светочувствительный барабан, соединительную часть барабана, предусмотренную рядом с аксиальным концом светочувствительного барабана, проявочный ролик, выполненный с возможностью вращения вокруг своей оси, проявочную соединительную часть, предусмотренную рядом с одним аксиальным концом указанного проявочного ролика. При этом проявочная соединительная часть включает приводную часть, промежуточную часть, приводящую часть. Также устройство содержит удерживающую часть, поджимающую часть, часть примыкания, сконфигурированную и позиционированную для примыкания к удерживающей части. Удерживающая часть включает контактную часть, сконфигурированную и позиционированную так, чтобы перемещение удерживающей ...

ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ, ПРОЯВОЧНОЕ УСТРОЙСТВО И ЭЛЕМЕНТ МУФТЫ

Настоящее изобретение относится к электрофотографическому устройству формирования изображений, проявочному устройству, используемому в электрофотографическом устройстве формирования изображений, и элементу муфты, используемому в электрофотографическом устройстве формирования изображений. Технический результат - повышение качества и скорости печати изображения. Проявочное устройство, используемое с электрофотографическим устройством формирования изображений и подвижное в направлении, по существу перпендикулярном осевому направлению приводного вала, содержащее элемент муфты для передачи поворотного усилия на проявочный валик, способный к принятию углового положения передачи поворотного усилия для передачи поворотного усилия, углового положения перед зацеплением, которое принимается перед тем, как элемент муфты приводится в зацепление с частью прикладывания поворотного усилия, и в котором элемент муфты отклонен от углового положения передачи поворотного усилия, и углового положения расцепления ...

УЗЕЛ БАРАБАНА, КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И МУФТА

Настоящее изобретение относится к электрофотографическому устройству формирования изображений, использующему электрофотографический процесс, узлу барабана, картриджу, муфте и т.п., используемым для электрофотографического устройства формирования изображений. Заявленная группа изобретений включает узел барабана, устанавливаемый с возможностью снятия в главном узле электрофотографического устройства формирования изображений, электрофотографическое устройство формирования изображений, содержащее картридж и главный узел электрофотографического устройства формирования изображений, в который может устанавливаться упомянутый картридж, картридж и муфту, способную зацепляться с ведущим валом, предусмотренным в главном узле электрофотографического устройства формирования изображений. Причем муфта содержит: участок восприятия движущей силы, выполненный с возможностью входить в паз, чтобы принимать движущую силу для вращения вращающегося элемента, имеющего поверхность для переноса проявителя; и поддерживающий ...

КАРТРИДЖ, ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И УСТРОЙСТВО ФОРМИРОВАНИЯ ЭЛЕКТРОФОТОГРАФИЧЕСКИХ ИЗОБРАЖЕНИЙ

Изобретение относится к информационным технологиям, а именно к устройствам формирования изображения. Технический результат заключается в усовершенствовании механизма управления технологическим картриджем для распределения нагрузки проявочного валика при печати. Технологический картридж включает фоточувствительный барабан; проявочный валик, элемент приема привода, выполненный с возможностью принимать движущую силу, снаружи упомянутого технологического картриджа, рычаг, перемещаемый посредством приема поджимающей силы снаружи картриджа, упругий элемент, при этом элемент приема привода выполнен с возможностью перемещения из первого положения во второе положение против упругой силы упругого элемента в ответ на перемещение рычага посредством приема поджимающей силы снаружи технологического картриджа. 2 н. и 7 з.п. ф-лы, 62 ил.

КАРТРИДЖ, ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Изобретение относится к области устройств печати, а именно к технологическому картриджу. Технологический картридж содержит: вращающийся фоточувствительный барабан; вращающийся проявочный ролик для проявления скрытого изображения, формируемого на барабане, причем проявочный ролик способен контактировать с барабаном и находиться на некотором расстоянии от него; принимающую поджимающую силу часть для приема поджимающей силы от поджимного элемента для размещения ролика на некотором расстоянии от барабана; часть передачи привода стороны картриджа, способную сцепляться с элементом передачи привода стороны главного узла для приема вращательной силы для вращения ролика; разъединяющий элемент, способный поджимать элемент передачи привода стороны главного узла для отцепления элемента передачи привода стороны картриджа от элемента передачи привода стороны главного узла с помощью принимающей поджимающую силу части, принимающей поджимающую силу от поджимного элемента стороны главного узла. Технический ...

ДЕТАЛЬ, ПЕРЕДАЮЩАЯ ВРАЩАТЕЛЬНОЕ УСИЛИЕ

Настоящее изобретение относится к детали, передающей вращательное усилие, для электрофотографического технологического картриджа, электрофотографического устройства формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блока электрофотографического фоточувствительного барабана. Основной узел включает в себя приводной вал с частью, прикладывающей вращательное усилие, включающей в себя соединительный элемент, способный занимать угловое положение, передающее вращательное усилие, для передачи вращательного усилия на барабан и угловое положение отцепления, в котором соединительный элемент отклонен от оси барабана от углового положения, передающего вращательное усилие, при этом при удалении барабана из основного узла в направлении, перпендикулярном оси барабана, соединительный элемент перемещается из углового положения, передающего вращательное усилие, в угловое положение отцепления. Технический результат - обеспечение плавного вращения фоточувствительного ...

КАРТРИДЖ, УСТАНАВЛИВАЕМЫЙ С ВОЗМОЖНОСТЬЮ ИЗВЛЕЧЕНИЯ В ОСНОВНОЙ УЗЕЛ ЭЛЕКТРОФОТОГРАФИЧЕСКОГО УСТРОЙСТВА ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ, СПОСОБ СБОРКИ УСТРОЙСТВА ПЕРЕДАЧИ ПРИВОДА ДЛЯ СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

Изобретение относится к картриджам, устанавливаемым с возможностью извлечения в основной узел электрофотографического устройства формирования изображения, включающего в себя вращающуюся зацепляющую часть стороны основного узла. Картридж выполнен с возможностью извлечения наружу из основного узла устройства после перемещения в предварительно заданном направлении, по существу, перпендикулярном оси вращения зацепляющей части стороны основного узла. Картридж содержит вращающийся элемент, осуществляющий перенос проявителя с вращением; вращающийся элемент, воспринимающий передаваемую вращающую силу, обеспеченный на конце упомянутого вращающегося элемента, при этом вращающийся элемент, воспринимающий передаваемую вращающую силу, в своем внутреннем пространстве включает вмещающую часть; соединительный элемент. Соединительный элемент включает свободную оконечную часть, имеющую по меньшей мере один выступ; соединительную часть, которая соединяется с вращающимся элементом, воспринимающим передаваемую ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты технологических картриджей. Причем технологический картридж содержит корпус, проявитель, содержащийся в корпусе, фоточувствительный барабан, имеющий ось L1, причем фоточувствительный барабан с возможностью вращения поддерживается в корпусе для обеспечения возможности вращения вокруг оси L1, проявочный ролик, имеющий ось L1’, причем проявочный ролик выполнен с возможностью проявки скрытого изображения, сформированного проявителем на фоточувствительном барабане, и при этом проявочный ролик с возможностью вращения поддерживается в корпусе для обеспечения возможности вращения вокруг оси L1’, и соединительный элемент, имеющий ось L2, причем соединительный элемент включает (i) первую концевую часть ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты технологических картриджей. Причем технологический картридж содержит: корпус, проявитель, содержащийся в корпусе, фоточувствительный барабан, имеющий ось L1, причем фоточувствительный барабан с возможностью вращения поддерживается в корпусе для обеспечения возможности вращения вокруг оси L1, фланец барабана, предусмотренный на конце фоточувствительного барабана и соединительный элемент, имеющий ось L2 и включающий (i) первую концевую часть, соединенную с фланцем барабана, (ii) вторую концевую часть, включающую по меньшей мере один выступ, имеющий наклонную поверхность относительно плоскости, перпендикулярной оси L2, и (iii) соединительную часть, соединяющую первую концевую часть и вторую концевую ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты технологических картриджей. Причем технологический картридж содержит: направляющий элемент, расположенный на одной стороне технологического картриджа, проявитель, содержащийся в технологическом картридже, фоточувствительный барабан, имеющий ось L1, причем фоточувствительный барабан с возможностью вращения поддерживается в технологическом картридже для обеспечения возможности вращения вокруг оси L1, проявочный ролик, имеющий ось L1’, причем проявочный ролик выполнен с возможностью проявки скрытого изображения, сформированного проявителем на фоточувствительном барабане, и при этом проявочный ролик с возможностью вращения поддерживается в технологическом картридже для обеспечения возможности вращения ...

КАРТРИДЖ И УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Группа изобретений относится к устройству формирования изображений и картриджам, съемно устанавливаемым в основной узел данного устройства. Сущность: картридж включает наклоняемый элемент передачи приводного усилия, предназначенный для передачи приводного усилия в упомянутый картридж; фоточувствительный барабан и перемещаемый элемент, перемещаемый относительно фоточувствительного барабана и предназначенный для управления углом наклона элемента передачи приводного усилия. Причем перемещаемый элемент выполнен с возможностью перемещения между первым положением для уменьшения угла наклона элемента передачи приводного усилия относительно фоточувствительного барабана и вторым положением, отведенным от первого положения. Технический результат: упрощение технического обслуживания. 24 н. и 204 з.п. ф-лы, 124 ил.

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты технологических картриджей. Причем технологический картридж содержит: корпус, проявитель, содержащийся в корпусе, фоточувствительный барабан, имеющий ось L1, причем фоточувствительный барабан поддерживается в корпусе с возможностью вращения вокруг оси L1, фланец барабана, предусмотренный на конце фоточувствительного барабана, причем фланец барабана выполнен с возможностью вращения с фоточувствительным барабаном вокруг оси L1 и соединительный элемент, имеющий ось L2 и имеющий (i) первый конец, по меньшей мере часть которого располагается в пределах фланца барабана, и (ii) второй конец, включающий по меньшей мере один выступ, причем соединительный элемент является перемещаемым между (i) первым ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты блоков барабана, используемых в технологическом картридже. Причем блок барабана содержит фоточувствительный барабан, имеющий ось L1, фланец барабана, предусмотренный на конце фоточувствительного барабана, причем часть фланца барабана расположена внутри фоточувствительного барабана, и соединительный элемент, имеющий L2 и имеющий (i) первый конец, по меньшей мере часть которого расположена в пределах фланца барабана, и (ii) второй конец, включающий по меньшей мере один выступ, причем соединительный элемент является перемещаемым между (i) первым положением, в котором концевая точка упомянутого по меньшей мере одного выступа находится на первом расстоянии от фоточувствительного барабана, при измерении ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Данное изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображения и блоку электрофотографического светочувствительного барабана. Заявленный технологический картридж содержит: i) электрофотографический светочувствительный барабан, вращающийся вокруг оси и имеющий светочувствительный слой на своей периферийной поверхности, ii) средства обработки, приводимые в действие на упомянутом электрофотографическом светочувствительном барабане, iii) соединительный элемент, сцепляемый с упомянутой прикладывающей вращающую силу частью для принятия вращающей силы, предназначенной для вращения упомянутого электрофотографического светочувствительного барабана, причем упомянутый соединительный элемент выполнен с возможностью занимать угловое положение передачи вращающей силы для передачи вращающей силы, предназначенной для вращения упомянутого электрофотографического светочувствительного барабана, на упомянутый электрофотографический светочувствительный ...

КАРТРИДЖ, УЗЕЛ ФОТОЧУВСТВИТЕЛЬНОГО ЭЛЕМЕНТА И УСТРОЙСТВО ФОРМИРОВАНИЯ ЭЛЕКТРОФОТОГРАФИЧЕСКИХ ИЗОБРАЖЕНИЙ

Настоящее изобретение относится к картриджу, к узлу фоточувствительного элемента и к устройству формирования электрофотографических изображений, в которое могут устанавливаться с возможностью снятия упомянутый картридж и/или упомянутый узел фоточувствительного элемента. Заявленная группа изобретений включает варианты картриджей, снимаемых с главного узла устройства формирования электрофотографических изображений, варианты устройств формирования электрофотографических изображений и варианты узлов фоточувствительного элемента, снимаемых с главного узла устройства формирования электрофотографических изображений. Заявленный картридж содержит: вращающийся элемент, способный нести проявитель и имеющий ось вращения, проходящую в направлении, по существу перпендикулярном направлению снятия упомянутого картриджа, соединительный элемент, предусмотренный на одном концевом участке упомянутого картриджа относительно упомянутой оси вращения для передачи вращающей силы от вращающейся зацепляющей части ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты блоков барабана. Причем блок барабана, используемый в технологическом картридже, содержит: фоточувствительный барабан, имеющий ось L1, и соединительный элемент, имеющий ось L2, причем соединительный элемент включает первую концевую часть, функционально связанную с фоточувствительным барабаном, и вторую концевую часть, включающую в себя по меньшей мере один выступ, который является открытым к оси L2, и внешнюю поверхность, которая обращена в сторону от первой концевой части, причем для по меньшей мере части упомянутой внешней поверхности максимальное расстояние от оси L2 до упомянутой внешней поверхности вдоль линии, перпендикулярной оси L2, уменьшается при увеличении расстояния вдоль оси L2 от ...

ДЕТАЛЬ, ПЕРЕДАЮЩАЯ ВРАЩАТЕЛЬНОЕ УСИЛИЕ

Настоящее изобретение относится к детали, передающей вращательное усилие, для электрофотографического технологического картриджа, электрофотографического устройства формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блока электрофотографического фоточувствительного барабана. Заявленный блок электрофотографического фоточувствительного барабана содержит: цилиндр, имеющий фоточувствительный слой на своей внешней периферии и фланец барабана, предусмотренный на одном конце цилиндра, причем фланец барабана включает в себя по меньшей мере два выступа, предусмотренные внутри фланца барабана и выступающие радиально внутрь фланца барабана, с пространством, диаметрально расположенным между указанными двумя выступами, при этом каждый из указанных двух выступов выступает радиально внутрь фланца барабана на большую величину в положении, более отдаленном от цилиндра, чем он выступает в положении, находящемся ближе к цилиндру. Технический результат ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

Настоящее изобретение относится к технологическому картриджу, устанавливаемому с возможностью замены в устройство формирования изображения, и устройству формирования изображения, включающему в себя технологический картридж. Заявленная группа изобретений включает вариант технологических картриджей. При этом технологический картридж содержит фоточувствительный барабан, вращаемый валик проявки для проявления электростатического скрытого изображения, сформированного на упомянутом фоточувствительном барабане, соединительный элемент, включающий в себя принимающий приводное усилие участок для приема приводного усилия, подлежащего передаче на упомянутый валик проявки, при этом упомянутый принимающий приводное усилие участок способен перемещаться относительно упомянутого валика проявки в направлении, пересекающем ось упомянутого валика проявки, поджимающий элемент для поджимания упомянутого принимающего приводное усилие участка в направлении, пересекающем ось упомянутого валика проявки, поддерживающий ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Данное изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображения и блоку электрофотографического светочувствительного барабана. Заявленный технологический картридж, устанавливаемый с возможностью снятия в основной узел электрофотографического устройства формирования изображения, включающего в себя приводной вал, имеющий прикладывающую вращающую силу часть, путем перемещения в направлении установки, по существу перпендикулярном оси упомянутого приводного вала, причем упомянутый технологический картридж содержит: i) светочувствительный барабан, вращающийся вокруг оси барабана, ii) соединительный элемент, предусмотренный в осевой концевой части упомянутого фоточувствительного барабана и вращаемый вокруг оси соединительного элемента так, чтобы передавать приводную силу от приводного вала упомянутому светочувствительному барабану, причем упомянутый соединительный элемент приспособлен наклоняться относительно упомянутого светочувствительного ...

ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ, ПРОЯВОЧНОЕ УСТРОЙСТВО И ЭЛЕМЕНТ МУФТЫ

Изобретение относится к проявочному устройству, используемому в электрофотографическом устройстве формирования изображений, и элементу муфты, используемому в электрофотографическом устройстве формирования изображений. Заявленная группа изобретений включает варианты проявочных устройств, используемых с электрофотографическим устройством формирования изображений, варианты проявочных картриджей, используемых с электрофотографическим устройством формирования изображений, и варианты муфт, используемых с электрофотографическим устройством формирования изображений. Причем проявочное устройство содержит: i) проявочный валик для проявления электростатического скрытого изображения, сформированного на электрофотографическом фоточувствительном барабане, проявочный валик является вращаемым вокруг оси и ii) элемент муфты для передачи поворотного усилия на проявочный валик, причем элемент муфты включает в себя: часть приема поворотного усилия, зацепляемую с частью прикладывания поворотного усилия, для ...

КАРТРИДЖ, ЭЛЕМЕНТ, СОСТАВЛЯЮЩИЙ КАРТРИДЖ, И УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Настоящее изобретение относится к устройству формирования изображений, к картриджу, с возможностью отсоединения установленному на основном корпусе устройства для устройства формирования изображений, и к элементам, составляющим картридж. Заявленная группа изобретений включает варианты картриджей, которые могут устанавливаться в устройстве формирования изображений в главный узел устройства, и варианты элементов рамы, составляющие раму картриджа, который может устанавливаться в устройстве формирования изображений в главный узел устройства. При этом картридж содержит: проявочный валик, раму, поддерживающую проявочный валик, перемещаемую часть, поддерживаемую с возможностью перемещения посредством рамы и перемещаемую в первую позицию и во вторую позицию относительно рамы, и упругую часть, обеспеченную между рамой и перемещаемой частью с возможностью поджимать перемещаемую часть, при этом перемещаемая часть включает в себя первую принимающую силу часть, которая принимает силу из главного узла ...

БЛОК ЦИЛИНДРА БАРАБАНА, СПОСОБ ПРИКРЕПЛЕНИЯ СВЯЗУЮЩЕГО ЭЛЕМЕНТА И БЛОК БАРАБАНА

Настоящее изобретение относится к блоку цилиндра барабана и блоку барабана, используемым в электрофотографическом устройстве формирования изображения, таком как лазерный принтер. Заявленная группа изобретений включает блок цилиндра барабана, используемый в электрофотографическом устройстве формирования изображения, способ прикрепления связующего элемента, включающего участок со сквозным отверстием, к блоку цилиндра барабана и блок барабана, используемый в электрофотографическом устройстве формирования изображения. Причем блок цилиндра барабана, используемый в электрофотографическом устройстве формирования изображения, включает фотопроводящий барабан и фланцевый элемент, при этом фланцевый элемент содержит крепежный участок, закрепленный на конце фотопроводящего барабана, цилиндрический участок, который формирует в себе полый участок, канавчатый участок, обеспеченный на краю цилиндрического участка, и зубчатый участок, при этом канавчатый участок и полый участок открываются наружу в осевом ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

Настоящее изобретение относится к технологическому картриджу, устанавливаемому с возможностью замены в устройство формирования изображения, и устройству формирования изображения, включающему в себя технологический картридж. Заявленная группа изобретений включает технологический картридж и устройство формирования изображения. Технологический картридж, содержит: (i) первый модуль, включающий в себя фоточувствительный барабан и позиционирующий участок, (ii) второй модуль, выполненный с возможностью перемещения относительно упомянутого первого модуля, причем упомянутый второй модуль включает в себя: (ii-i) вращаемый валик проявки для проявления электростатического скрытого изображения, сформированного на упомянутом фоточувствительном барабане, (ii-ii) вращаемый элемент, имеющий ось в положении, отклоненном от оси упомянутого валика проявки, (ii-iii) соединительный элемент, обеспеченный на упомянутом вращаемом элементе, и (ii-iv) принимающий приводное усилие участок, обеспеченный на упомянутом ...

КАРТРИДЖ, УЗЕЛ ФОТОЧУВСТВИТЕЛЬНОГО ЭЛЕМЕНТА И УСТРОЙСТВО ФОРМИРОВАНИЯ ЭЛЕКТРОФОТОГРАФИЧЕСКИХ ИЗОБРАЖЕНИЙ

БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА И СПОСОБ СНЯТИЯ СОЕДИНИТЕЛЬНОГО ЭЛЕМЕНТА

... 1. Блок электрофотографического светочувствительного барабана, содержащий:(a) цилиндр, имеющий светочувствительный слой на его внешней периферии; и(b) фланец барабана, закрепленный на одном конце упомянутого цилиндра, причем упомянутый фланец барабана включает в себя множество выступов, предусмотренных внутри упомянутого фланца барабана и выступающих радиально внутрь от фланца барабана, с зазором диаметрально между упомянутыми выступами, при этом каждый выступ имеет выемку для легкой деформации упомянутых выступов.2. Блок по п.1, в котором участок каждого выступа имеет нависающую часть.3. Блок по п.1, в котором другой зазор сформирован между регулирующими участками вдоль окружного направления упомянутого фланца барабана.4. Блок по п.3, в котором множество таких выемок предусмотрено с промежутками в окружном направлении.5. Блок по п.1, в котором упомянутый фланец барабана выполнен из смолы.6. Блок по п.1, далее содержащий зубчатую часть, предусмотренную вдоль наружной поверхности упомянутого ...

МЕХАНИЗМ ПЕРЕДАЧИ ДВИЖУЩЕЙ СИЛЫ И СОДЕРЖАЩИЙ ЕГО ОБРАБАТЫВАЮЩИЙ КАРТРИДЖ

... 1. Механизм передачи движущей силы, включающий приводной элемент фоточувствительного барабана, при этом приводной элемент фоточувствительного барабана входит в зацепление с приводным элементом устройства формирования изображения для передачи движущей силы; при этом устройство формирования изображения включает: треугольную выемку, имеющую поперечное сечение треугольной формы и часть, предназначенную для передачи движущей силы, которая расположена в треугольной выемке;приводной элемент фоточувствительного барабана включает выступ с неискривленной поверхностью, который выступает в осевом направлении из торца вала барабана и входит в зацепление с выемкой на приводном элементе устройства формирования изображения;выступ, в котором имеется механизм ограничения положения и механизм, находящийся под воздействием механического напряжения; при этом выступающий зуб расположенный наклонно на выступе с неискривленной поверхностью, выполняет функцию механизма, находящегося под воздействием механического ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

... 1. Технологический картридж, содержащий:i) светочувствительный барабан, вращающийся вокруг оси барабана;ii) приводимый во вращение проявочный валик, выполненный с возможностью проявки скрытого изображения, сформированного на упомянутом светочувствительном барабане;iii) соединительный элемент, предусмотренный на осевом концевом участке упомянутого светочувствительного барабана и вращаемый вокруг оси соединительного элемента для передачи движущей силы упомянутому светочувствительному барабану, причем упомянутый соединительный элемент приспособлен наклоняться относительно упомянутого светочувствительного барабана, так что ось соединительного элемента наклоняется относительно оси барабана; иiv) регулирующую часть, окружающую упомянутый соединительный элемент для ограничения диапазона, в котором наклоняется упомянутый соединительный элемент,причем упомянутая регулирующая часть выполнена с участком, который открыт в направлении в сторону от упомянутой оси барабана и в сторону от упомянутого проявочного ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

... 1. Технологический картридж, содержащий:электрофотографический фоточувствительный барабан;проявочный валик, который проявляет скрытое изображение, обеспеченное на упомянутом электрофотографическом фоточувствительном барабане;фланец барабана, закрепленный на одном конце упомянутого электрофотографического фоточувствительного барабана;соединительный элемент, который принимает вращающую силу для вращения упомянутого электрофотографического фоточувствительного барабана и передает вращающую силу электрофотографическому фоточувствительному барабану через упомянутый фланец барабана;первую регулирующую часть, которая регулирует перемещение упомянутого электрофотографического фоточувствительного барабана в направлении от одного продольного конца к другому продольному концу упомянутого электрофотографического фоточувствительного барабана; ивторую регулирующую часть, которая регулирует перемещение упомянутого электрофотографического фоточувствительного барабана в направлении от другого продольного ...

Arbeitseinheit und elektrophotographisches Bilderzeugungsgerät

Arbeitseinheit und elektrophotographisches Bilderzeugungsgerät

DRIVE COUPLING

A replaceable xerographic cassette is coupled to a rotatable driving shaft in a copying machine by a rotary drive coupling member (1) in which a splined drive shaft of the cassette engages as the latter is inserted into the machine. To accommodate angular misalignment of the shafts, the coupling member is of two-part form and the two parts (5, 6) can rotate relative to one another as the shaft is being inserted, to take up any misalignment that may exist. ...

Cartridge, photoreceptor unit, electrophotographic image forming device

In the present invention, a cartridge is provided to an electrophotographic image forming device body that is not provided with a mechanism which causes a body-side engagement part, provided to the device body in order to transmit a rotational force to an image carrier, to move according to the opening and closing operation of a body cover of the device body, such movement being in the rotational axis direction of the image carrier. The cartridge is removable in a prescribed direction substantially orthogonal to the rotational axis of the image carrier, wherein the cartridge can be removed from the device body without impairing useability performance. In accordance with the movement of the cartridge when removing the cartridge from the electrophotographic image forming device body, in conjunction with movement in a direction orthogonal to the rotational axis of the image carrier, a coupling member that can move in a direction parallel to the rotational axis of the image carrier penetrates ...

Drum unit, cartridge and coupling member

Cartridge, member configuring cartridge and image formation device

The purpose of the present invention is to accurately press and move a developer supporting body. A cartridge includes: a developing roller; a frame for supporting the developing roller; a movable part which is movably supported relative to the frame and which moves to a first position and a second position with respect to the frame; and an elastic part which is provided between the frame and the movable part and biases the movable part. The movable part is provided with a first force receiving part for receiving a force, from a device body, in a direction from the first position toward the second position, and a second force receiving unit for receiving a force, from the device body, in a direction from the second position toward the first position. When the movable part is in the second position with the first force receiving part receiving a force from the device body, the elastic part biases the movable part to move from the second position toward the first position.

Process cartridge and driving component

A process cartridge, including a process cartridge housing 10, a driving force receiver 21, a flange component 25 and a control mechanism (30 see figure 1). The driving force receiver is adapted to extend and retract along the centre of the flange and provides a driving force to the flange. The driving force receiver includes an opening. The movement of the control mechanism at least partially controls the movement of the receiver. A retaining component 19 urges the driving force receiver into a position such that the angle between the direction of the opening and the mounting direction of the cartridge are not 90 degrees. Also disclosed is a process cartridge where the driving force receiver is retained in a non-interfering position. Also disclosed is a process cartridge wherein the retaining component retains the driving force receiver in a stopping position in the direction of its rotation when the receiver is in a retracted position.

Process cartridge and electrophotographic image forming apparatus

Process cartridge and electrophotographic image forming apparatus

Cartridge, process cartridge and electrophotographic image forming apparatus

CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS A process cartridge (P) detachably mountable to an electrophotographic image forming apparatus including a main assembly side drive transmission member (62) and a main assembly side urging member (80), the cartridge including a rotatable photosensitive drum (4); a rotatable developing roller (6) for developing a latent image formed on the drum, the developing roller contactable to and spaceable from the drum; an urging force receiving portion (45a) for receiving an urging force from the urging member to space the roller from the drum; a cartridge side drive transmission portion (74) capable of coupling with the main assembly side drive transmission member to receive a rotational force for rotating the roller; a releasing member (72) capable of urging the main assembly side drive transmission member to decouple the cartridge side drive transmission member from the main assembly side drive transmission member by ...

Cartridge, member constituting cartridge, and image forming apparatus

CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING A cartridge is disclosed. The cartridge comprises a frame; a developing roller rotatably supported by the frame to permit rotation about an axis of the developing roller. The cartridge also comprises a first lever supported by the frame so as to be movable between a first position relative to the frame and a second position relative to the frame, the first lever including a force receiving portion; and a first spring connected to the frame and first lever. The cartridge also comprises a second lever supported by the frame so as to be movable between a first position relative to the frame and a second position relative to the frame. The second lever includes a force receiving portion. The cartridge also comprises a second spring connected to the frame and second lever; and a coupling member for transmitting a rotational force to the developing roller. The cartridge is configured such that (i) when the force receiving portion of ...

Image forming apparatus with drive means for mounting a process cartridge

Cartridge, process cartridge and electrophotographic image forming apparatus

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.

Drum unit, cartridge and coupling member

To develop a conventional coupling for transmitting a driving force. A coupling member is provided with a supporting portion for movable 5 supporting a driving force receiving portion for receiving a driving force.

Process cartridge and electrophotographic image forming apparatus

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

To develop a conventional coupling for transmitting a driving force. A coupling member is provided with a supporting portion for movable supporting a driving force receiving portion for receiving a driving force.

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS WHICH USES CARTRIDGE

ROTATIONAL FORCE TRANSMITTING PART

CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A control member 76 for controlling transmission and interruption of a rotational force by a clutch is rotatably supported by a support member for supporting a developing frame body. An action part provided in the developing frame body causes a locking part provided in the control member 76 to rotate between a position to which the locking part retreats from a part to be locked of the clutch and a position at which the locking part engages with the part to be locked.

DEVELOPING APPARATUS, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A process cartridge (7) to enter a main assembly in a longitudinal direct ion (E) of the cartridge (7) and to be urged in a direction (F) crossing the longitudinal direction (E) to position the cartridge (7), the cartridge (7) includes a shaft coupling member (48), provided on one axial end of a devel oping roller (25), for transmitting a driving force from the main assembly i ncluding an engaging portion (48c) wherein a distance (D) between an axis (4 8c5) of the engaging portion (48c) and an axis (25y) of the developing rolle r (25) is smaller when the cartridge (7) is positioned to a main assembly po sitioning portion (81-83) than when the engaging portion (48c) is positioned by a holding portion (27f ).

Driving assembly of toner cartridge

Image forming apparatus

Disclosed is an image forming apparatus. The image forming apparatus comprises a unit which can be attached removably to the main body of an apparatus includes a coupling which receives rotary drive from the main body of the apparatus. The main body of the apparatus includes a coupling which engages with the coupling of the unit. At least one of these couplings can be pushed in the direction parallel with the axis of rotation and one coupling is provided with a chamfer. When the unit is attached or detached, one coupling is pushed in by the chamfer and the joints between the couplings are disengaged.

DEVELOPMENT CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE USING SAME

Disclosed is a development cartridge attached to and detached from a body of an image forming device. The development cartridge comprises: a photosensitive unit including a photosensitive drum; a development unit including a development roller, and connected with the photosensitive unit to be rotated around a hinge axis; a driving gear rotated in a first direction for printing and in a second direction which is opposite to the first direction; a driving member coaxially disposed with the driving gear, and rotated by the driving gear; a first unidirectional clutch for connecting the driving member and the driving gear only when the driving gear is rotated in the second direction; and a first moving member connected with the driving member, and capable of reciprocating between a first position having a development nip formed therein and a second position for releasing the development nip. COPYRIGHT KIPO 2017 ...

PROCESS CARTRIDGE

... 전자사진 화상 형성 장치의 주 조립체와 함께 사용하기 위한 카트리지이며, 주 조립체는 회전력 인가부를 갖는 구동 샤프트를 포함하고, 카트리지는 구동 샤프트의 축선 방향에 대해 실질적으로 직교하는 방향으로 주 조립체로부터 탈착 가능하고, 카트리지는 i) 그의 축선에 대해 회전 가능한 현상 롤러; 및 ⅱ) 현상 롤러를 회전시키기 위한 회전력을 수용하기 위해 회전력 인가부(180)와 결합 가능한 커플링 부재(150)를 포함하고, 커플링 부재는 현상 롤러를 회전시키기 위한 회전력을 전달하기 위한 회전력 전달 각 위치(도 18의 (b)), 및 커플링 부재가 회전력 전달 각 위치로부터 멀리 기울어지는 분리 각 위치(18의 (a))를 취할 수 있고, 카트리지가 주 조립체로부터 탈착될 때, 커플링 부재는 회전력 전달 각 위치로부터 분리 각 위치로 이동하는 카트리지.

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND CARTRIDGE MOUNTING METHOD

ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

DEVELOPING DEVICE

DRUM UNIT AND CARTRIDGE

PROCESS CARTRIDGE AND CARTRIDGE

IMAGE FORMING APPARATUS AND A POWER TRANSMISSION UNIT THEREOF, CAPABLE OF REDUCING THE SPEED VARIATION OF A ROTATOR

PURPOSE: An image forming apparatus and a power transmission unit thereof are provided to improve the picture quality of color image by reducing color registration error. CONSTITUTION: A passive coupler(340) transfers the driving force to a driven shaft. A driving coupler(310) transfers the driving force of the driving shaft to the passive coupler. One of the passive coupler or the driving coupler has plural contacted surfaces. The other one of the passive coupler or the driving coupler is projected to the contacted surface along the rotating axis. A plurality of axis direction protrusions(333) is respectively point-contacted to plural contacted surfaces along the rotational direction. COPYRIGHT KIPO 2011 ...

Process cartridge

Process cartridge and electrophotographic image forming apparatus

Provided is a configuration by which a process cartridge receives input of external drive force. An electrophotographic image formation device body has a drive output member provided with an output gear part and an output coupling part. The process cartridge, which is detachable from the electrophotographic image formation device body, includes the following: a photosensitive body; an input coupling part that is provided on an end of the photosensitive body and that can be coupled with the output coupling part; and an input gear part that can engage with the output gear part.

Cartucho, cartucho de configuración de miembros y dispositivo de formación de imagen

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SE LLEVA A CABO MOVIMIENTO Y/O EMPUJE DE UN MIEMBRO PORTADOR DE REVELADOR CON ALTA PRECISIÓN. UN CARTUCHO QUE SE PUEDE MONTAR EN UN MONTAJE PRINCIPAL DE APARATO DE UN APARATO FORMADOR DE IMÁGENES, EL CARTUCHO INCLUYE UN RODILLO DE REVELADO; UN ARMAZÓN QUE SOPORTA EL RODILLO DE REVELADO; UNA PARTE MÓVIL SOPORTADA DE MANERA MOVIBLE POR EL ARMAZÓN Y QUE SE PUEDE MOVER A UNA PRIMERA POSICIÓN Y A UNA SEGUNDA POSICIÓN CON RELACIÓN AL ARMAZÓN; Y UNA PARTE ELÁSTICA PROPORCIONADA ENTRE EL ARMAZÓN Y LA PARTE MÓVIL PARA EMPUJAR LA PARTE MÓVIL. LA PARTE MÓVIL INCLUYE UNA PRIMERA PARTE RECEPTORA DE FUERZA QUE RECIBE FUERZA DESDE EL MONTAJE PRINCIPAL DE APARATO, EN UNA DIRECCIÓN DE MOVIMIENTO DESDE LA PRIMERA POSICIÓN HASTA LA SEGUNDA POSICIÓN, Y UNA SEGUNDA PARTE RECEPTORA DE FUERZA QUE RECIBE FUERZA DESDE EL MONTAJE PRINCIPAL DE APARATO, EN UNA SEGUNDA DIRECCIÓN DE MOVIMIENTO DESDE LA SEGUNDA POSICIÓN HASTA LA PRIMERA POSICIÓN. CUANDO LA PARTE MÓVIL RECIBE FUERZA DESDE EL MONTAJE PRINCIPAL DE APARATO ...

CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

An image forming apparatus includes image forming stations including respective electrophotographic photosensitive drums; an image transfer belt contactable to the drums; image transfer rollers, contactable to the transfer belt to urge the belt to the drums for transferring the toner images from the drums onto the belt, the rollers being provided with respective rotational shafts about an axis of which the rollers are rotatable; and a slidable member slidable in a direction in which the stations are arranged to retract the rollers away from the corresponding drums, the slidable member being provided with inclined surfaces contactable to the shafts, the inclined surfaces being disposed at such positions that the rollers are retracted from respective drums sequentially with the movement of the slidable member in the direction.

Image forming apparatus having spacing configuration for process cartridge

An image forming apparatus may include: a process cartridge, an apparatus body and a spacing member. The process cartridge may be detachably mountable to the apparatus body and include a photosensitive unit having a photosensitive member, a developing unit having a developing roller, and a driving input part into which a driving force from the apparatus body is configured to be inputted. The apparatus body may include a driving input member which is configured to input the driving force. Additionally or alternatively, the spacing member may be attached to the process cartridge and configured to space the photosensitive member and the developing roller. The spacing member may include a first cover part which is located between the driving input part and the driving input member and covers at least a portion of the driving input part.

Cartridge with portions to facilitate coupling to an electrophotographic image forming apparatus

A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a photosensitive drum, and a developing roller for developing a latent image. A development coupling portion is provided that includes a driven portion. The development coupling portion also includes an intermediary portion configured and positioned to engage with the driven portion, and to be movable relative to the driven portion while maintaining engagement with the driven portion. The development coupling portion still further includes a driving portion configured and positioned to engage with the intermediary portion, and to be movable relative to the intermediary portion in a direction crossing the axis of the developing roller while maintaining engagement with the intermediary portion.

IMAGE FORMING APPARATUS

An image forming apparatus may transfer an image to a transfer-receiving material. The image forming apparatus includes a main body to which a cartridge is detachably mounted. The cartridge includes an image bearing member in contact with the transfer-receiving material and a receiving member to receive driving force from the main body to drive and rotate the image bearing member. The image forming apparatus also includes a shaft passing through and supporting the receiving member of the cartridge and a transmission member to rotate around the shaft and to transmit drive force from a motor to the receiving member. A bending unit included with the image forming apparatus bends the shaft passing through and supporting the receiving member and the transmission member.

Image forming apparatus

An image forming apparatus capable of minimizing color mis-registration due to runout of gears is disclosed. The image forming apparatus includes a plurality of photosensitive bodies having transfer points to transfer images onto a transfer object, a driving source to drive at least two photosensitive bodies of the plurality of photosensitive bodies, and a driving gear train to transmit driving power from the driving source to the at least two photosensitive bodies. The driving gear train includes photosensitive body shaft gears respectively connected to the photosensitive bodies driven by the driving source, and connecting gears to transmit the driving power to the photosensitive body shaft gears. When any one of the photosensitive body shaft gears is set to a reference photosensitive body shaft gear, the number of teeth of the connecting gear, which is disposed at a jth position from the reference photosensitive body shaft gear, is determined so that a value calculated from the following ...

CARTRIDGE, ASSEMBLING METHOD FOR CARTRIDGE, AND DISASSEMBLYING METHOD FOR CARTRIDGE

A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a developer accommodating portion for accommodating a developer; a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum with the developer accommodated in the developer accommodating portion; a cartridge frame extended in a longitudinal direction of the developing roller; a bearing member, provided at one longitudinal end portion of the cartridge frame, for supporting a developing roller shaft portion at one longitudinal end portion of the developing roller; a rotational force receiving member for receiving, from the main assembly, a rotational force for rotating the developing roller, in a state in which the cartridge is mounted to the main assembly; a side cover provided outside the bearing member with respect to a longitudinal direction of the cartridge frame; a first fastening member fastening the bearing member ...

Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a motor, a main assembly side gear for receiving driving force from the motor, a hole defined by twisted surfaces, the hole being substantially coaxial with the gear, and a main assembly side grounding contact provided in the hole, the process cartridge includes an electrophotographic photosensitive drum; process mechanisms actable on the photosensitive drum; and a projection engageable with the twisted surfaces, the projection being provided at a longitudinal end of the photosensitive drum, wherein when the main assembly side gear rotates with the hole and projection engaged with each other, rotational driving force is transmitted from the gear to the photosensitive drum through engagement between the hole and the projection; and a cartridge side grounding contact electrically connected with the electrophotographic photosensitive drum for electrically ...

DEVELOPING ROLLER, AND ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING THE DEVELOPING ROLLER

A developing roller has a surface layer which can effectively inhibit the bleeding of a low-molecular-weight component from an elastic layer, and can efficiently impart a high electric charge to a negatively chargeable toner, and is excellent in toner-releasing properties. The developing roller has a mandrel, at least one layer of an elastic layer provided on the mandrel and a surface layer provided on the elastic layer, carries and conveys a toner, and develops an electrostatic latent image on an opposing photosensitive member with the toner. The surface layer comprises a silicon compound film containing Si, N, C and H having specific total amounts of the existing elements Si, N, C and H, and specific ratios N/Si, C/Si, and H/Si.

Systems & Methods for Remanufacturing Imaging Components

A drive gear for a generally cylindrical imaging component. The drive gear includes a body for engaging the generally cylindrical imaging component; a cylindrical shaft attached to the body, the cylindrical shaft having an end surface; and three prongs extending longitudinally outward from the end surface.

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT

A drum unit usable in a process cartridge includes a photosensitive drum having an axis L1 and a coupling member having an axis L2. The coupling member includes a first end portion connected to the photosensitive drum and a second end portion, with the second end portion including at least one projection that is open to the axis L2 and an outer surface that faces away from the first end portion. For least part of the outer surface, a maximum distance from the axis L2 to the outer surface along a line perpendicular to the axis L2 decreases as the distance along the axis L2 from the first end portion increases.

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT

A process cartridge includes a casing, a photosensitive drum having an axis L1, and a coupling member having an axis L2. The coupling member includes a first end portion connected to the photosensitive drum and a second end portion, with the second end portion including at least one projection that is open to the axis L2 and an outer surface that faces away from the first end portion. For at least part of the outer surface, a maximum distance from the axis L2 to the outer surface along a line perpendicular to the axis L2 decreases as the distance along the axis L2 from the first end portion increases.

PHOTOSENSITIVE MEMBER UNIT, CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A photosensitive member unit detachably mountable to a main assembly of an image forming apparatus, the image forming apparatus including a first main assembly side helical gear portion and a second main assembly side helical gear portion which are coaxially rotatable, the photosensitive member unit includes a photosensitive member rotatable about a rotational axis thereof; a first unit side helical gear portion for meshing engagement with the first main assembly side helical gear portion; and a second unit side helical gear portion for meshing engagement with the second main assembly side helical gear portion, wherein a twisting direction of a tooth of the second unit side helical gear portion is the same as the twisting direction of a tooth of first unit side helical gear portion, wherein a helix angle of the tooth of the second unit side helical gear portion is larger than a helix angle of the tooth of the first unit side helical gear portion, and wherein the first unit side helical ...

Process cartridge and image forming apparatus

The process cartridge has a rotatable member (7) having an electrophotographic photosensitive layer, a cleaning member for removing any residual from the electrophotographic photosensitive layer, and conveying means (9d) for conveying the residual removed by the cleaning member. The rotatable member and the conveying means each have a drive force receiving portion (7d,9d3) for directly receiving a drive force from the image forming apparatus. ...

IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To improve driving accuracy of a rotating member etc. disposed so as to make their driving switchable. SOLUTION: A switching unit 60 includes forward-and-backward moving members 70y, 70m, 70c and 70k which are moved forward and backward with respect to photoreceptor-side coupling members 18, linked with a first movable plate 83 and a second movable plate 84. When the first movable plate 83 slides upward to rotate the forward-and-backward moving members 70y, 70m and 70c, the forward-and-backward moving members 70y, 70m and 70c slide in a direction away from the photoreceptor-side coupling members 18y, 18m and 18c. Accordingly, driving-side coupling members slide in a direction away from the photoreceptor-side coupling members 18y, 18m and 18c as well. Consequently, the connection between the photoreceptor-side coupling member 18k and the driving-side coupling member corresponding to it is maintained and the connection between the photoreceptor-side coupling members ...

ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE, PROCESSING CARTRIDGE, COUPLING DEVICE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM

PROBLEM TO BE SOLVED: To improve image quality by performing driving transmission between an image forming device main body and a processing cartridge, performing the positioning of the processing cartridge for a main body and improving the accuracy of the driving transmission. SOLUTION: The driving of a device main body and the processing cartridge is performed by a coupling, and a twisted triangular hole 18a is made at one end 18a of the coupling, and a spherical abutting part 17a2 abutting on the inner face of a hole by an angle obtained by trisecting a rotary shaft in a rotating direction at the position of the same distance from the core of the rotary shaft is provided at the other end 17a. Self-aligning action and a photosensitive drum 7 are attracted in the direction of a coupling recessed shaft 18, so that the center of the rotation and the position in the axial direction of the photo sensitive drum are aligned. COPYRIGHT: (C)1998,JPO ...

КАРТРИДЖ И УСТРОЙСТВО ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ, В КОТОРОМ ИСПОЛЬЗУЕТСЯ КАРТРИДЖ

Настоящее изобретение относится к области использования картриджа и устройства электрофотографического формирования изображения, в котором картридж монтируется с возможностью отсоединения. Заявленная группа изобретений включает проявочный картридж для использования с основным узлом устройства электрофотографического формирования изображения, где упомянутый основной узел включает в себя электрофотографический фоточувствительный барабан и приводной вал, имеющий часть прикладывания вращающей силы, а также устройство электрофотографического формирования изображения. При этом проявочный картридж для использования с основным узлом устройства электрофотографического формирования изображения, где упомянутый основной узел включает в себя электрофотографический фоточувствительный барабан и приводной вал, имеющий часть прикладывания вращающей силы, причем упомянутый проявочный картридж является демонтируемым из основного узла в направлении снятия, по существу перпендикулярном осевому направлению приводного ...

КАРТРИДЖ, ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

Настоящее изобретение относится к электрофотографическому устройству формирования изображений (устройству формирования изображений) и картриджу, съемно монтируемому на главном узле устройства формирования изображений. Изобретение включает варианты технологических картриджей, съемно монтируемых на главном узле электрофотографического устройства формирования изображений и варианты электрофотографических устройств формирования изображений, содержащих соответствующие картриджи. Причем технологический картридж содержит: вращающийся фоточувствительный элемент, вращающийся проявочный ролик, выполненный с возможностью проявления скрытого изображения, формируемого на упомянутом фоточувствительном элементе, причем упомянутый проявочный ролик способен контактировать с упомянутым фоточувствительным элементом и находиться на некотором расстоянии от него, принимающую поджимающую силу часть, выполненную с возможностью приема поджимающей силы от поджимного элемента стороны главного узла, для размещения ...

КАРТРИДЖ И УСТРОЙСТВО ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ, В КОТОРОМ ИСПОЛЬЗУЕТСЯ КАРТРИДЖ

Изобретение относится к картриджу и устройству электрофотографического формирования изображения, в котором картридж монтируется с возможностью отсоединения. Заявленный технологический картридж для электрофотографического устройства формирования изображения, где основной узел упомянутого устройства включает первую и вторую зацепляющие части основного узла, причем первая зацепляющая часть основного узла имеет выемку, а вторая зацепляющая часть основного узла имеет приводной вал, а также часть прикладывания вращающей силы, предусмотренную на приводном валу, причем упомянутый технологический картридж выполнен с возможностью снятия с основного узла в направлении снятия, по существу перпендикулярном аксиальному направлению приводного вала, при этом упомянутый технологический картридж содержит: i) электрофотографический фоточувствительный барабан; ii) первый соединительный элемент, вращаемый вокруг оси первого соединительного элемента посредством первой вращающей силы, принимаемой от первой зацепляющей ...

КАРТРИДЖ, ЭЛЕМЕНТ, СОСТАВЛЯЮЩИЙ КАРТРИДЖ, И УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ

Настоящее изобретение относится к устройству формирования изображений, к картриджу, с возможностью отсоединения установленного на основном корпусе устройства для устройства формирования изображений, и к элементам, составляющим картридж. Заявленный картридж, который может устанавливаться в устройстве формирования изображений в главный узел устройства, содержит: проявочный валик, раму, поддерживающую проявочный валик, первую перемещаемую часть и вторую перемещаемую часть, поддерживаемые посредством рамы с возможностью независимого перемещения в первую позицию и во вторую позицию относительно рамы, и первую пружину, обеспеченную между рамой и первой перемещаемой частью с возможностью поджимать первую перемещаемую часть, и вторую пружину, обеспеченную между рамой и второй перемещаемой частью с возможностью поджимать вторую перемещаемую часть, приводной входной элемент для приема ввода вращающей силы для вращения проявочного валика, при этом первая и вторая перемещаемые части, каждая, включают ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

Данное изобретение относится к технологическому картриджу, устанавливаемому в электрофотографическое устройство формирования изображения с возможностью извлечения. Технологический картридж содержит электрофотографический фоточувствительный барабан, фланец барабана, предусмотренный на одном конце упомянутого электрофотографического фоточувствительного барабана, соединительный элемент, который принимает вращающую силу для вращения упомянутого электрофотографического фоточувствительного барабана через упомянутый фланец барабана, первую и вторую регулирующую части, которые регулируют перемещение упомянутого электрофотографического фоточувствительного барабана. При этом упомянутый фланец барабана поддерживает упомянутый соединительный элемент так, что ось вращения упомянутого соединительного элемента является наклоняемой относительно оси вращения упомянутого фланца барабана, и имеет первую регулируемую часть, приспособленную для регулирования упомянутой первой регулирующей частью, и вторую регулируемую ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО СВЕТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Данное изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображения и блоку электрофотографического светочувствительного барабана. Заявленный технологический картридж содержит: (i) светочувствительный барабан, вращающийся вокруг оси барабана, (ii) приводимый во вращение проявочный валик, выполненный с возможностью проявки скрытого изображения, сформированного на упомянутом светочувствительном барабане, (iii) соединительный элемент, предусмотренный на осевом концевом участке упомянутого светочувствительного барабана и вращаемый вокруг оси соединительного элемента для передачи движущей силы упомянутому светочувствительному барабану, причем упомянутый соединительный элемент приспособлен наклоняться относительно упомянутого светочувствительного барабана, так что ось соединительного элемента наклоняется относительно оси барабана, при этом соединительный элемент имеет (iii-i) первую концевую часть, соединенную с упомянутым светочувствительным ...

КАРТРИДЖ, ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ И УСТРОЙСТВО ФОРМИРОВАНИЯ ЭЛЕКТРОФОТОГРАФИЧЕСКИХ ИЗОБРАЖЕНИЙ

Настоящее изобретение относится к устройству формирования электрофотографических изображений (устройству формирования изображений) и к картриджу, съемным образом устанавливаемому в главном узле устройства формирования изображений. Заявленная группа изобретений включает варианты технологических картриджей и устройств формирования электрофотографических изображений. При этом технологический картридж содержит: (i) вращающийся фоточувствительный элемент, (ii) вращающийся проявочный валик, выполненный с возможностью проявлять скрытое изображение, сформированное на упомянутом фоточувствительном элементе, причем упомянутый проявочный валик допускает его вхождение в контакт и размещение с зазором от упомянутого фоточувствительного элемента, (iii) часть приема поджимающей силы, выполненную с возможностью принимать, от поджимающего элемента на стороне главного узла, поджимающую силу для размещения с зазором упомянутого проявочного валика от упомянутого фоточувствительного элемента, (iv) элемент передачи ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И БЛОК ЭЛЕКТРОФОТОГРАФИЧЕСКОГО ФОТОЧУВСТВИТЕЛЬНОГО БАРАБАНА

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленная группа содержит варианты технологических картриджей. Причем технологический картридж содержит корпус, проявитель, содержащийся в корпусе, фоточувствительный барабан, имеющий ось L1, причем фоточувствительный барабан с возможностью вращения поддерживается в корпусе для обеспечения возможности вращения вокруг оси L1, проявочный ролик, имеющий ось L1’, причем проявочный ролик выполнен с возможностью проявки скрытого изображения, сформированного проявителем на фоточувствительном барабане, и при этом проявочный ролик с возможностью вращения поддерживается в корпусе для обеспечения возможности вращения вокруг оси L1’, и соединительный элемент, имеющий ось L2 и включающий (i) первую концевую часть, функционально связанную с ...

ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ

Настоящее изобретение относится к технологическому картриджу, электрофотографическому устройству формирования изображений, в которое можно установить технологический картридж с возможностью его замены, и блоку электрофотографического фоточувствительного барабана. Заявленный технологический картридж содержит корпус, проявитель, содержащийся в корпусе, фоточувствительный барабан, с возможностью вращения поддерживаемый в корпусе для обеспечения возможности вращения вокруг оси фоточувствительного барабана, проявочный ролик, с возможностью вращения поддерживаемый в корпусе для обеспечения возможности вращения вокруг оси проявочного ролика, причем проявочный ролик выполнен с возможностью проявки скрытого изображения, сформированного проявителем на фоточувствительном барабане, и соединительный элемент, имеющий ось, вокруг которой соединительный элемент может вращаться, и свободную концевую часть для принятия вращательного усилия, причем свободная концевая часть включает в себя по меньшей мере ...

КАРТРИДЖ И ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

Настоящее изобретение относится к электрофотографическому устройству формирования изображения и картриджу, устанавливаемому с возможностью отсоединения в основной узел устройства формирования изображения. Конструкция картриджа предусматривает раму, вращающийся, переносящий проявитель элемент, поддерживаемый с возможностью вращения рамой и способный вращаться вокруг оси L1 переносящего проявитель элемента, соединительный элемент, способный вращаться вокруг оси L2 соединительного элемента, выполненный с возможностью передавать вращательное усилие на переносящий проявитель элемент и способный перемещаться между (a) исходным положением, в котором ось L2 соединительного элемента параллельна оси L1 переносящего проявитель элемента и смещена от неё, (b) первым наклонным положением, в котором соединительный элемент наклонен в направлении к переносящему проявитель элементу, и (c) вторым наклонным положением, в котором соединительный элемент наклонен в направлении, отличном от направления, в котором ...

Attachable/detachable body and image forming apparatus

An attachable/detachable body includes a main body, a positioned portion, a transmitted member a contacting portion. The main body of the attachable/detachable body is supported to be attachable to and detachable from a main body of an image forming apparatus. The positioned portion is positioned at a positioning portion provided at the main body of the image forming apparatus. The transmitted member is connected to a transmission member provided at the main body of the image forming apparatus to transmit a drive thereto, the transmitted member transmitting the drive to a driven member provided at the main body of the attachable/detachable body. The contacting portion comes into contact with a contacted portion that is provided at the main body of the image forming apparatus to be connected electrically thereto.

Electrical contact, electrophotographic photosensitive drum, and process cartridge

An electrical contact member for electrically connecting to an external contact which is electrically connected with an electroconductive cylindrical member having a photosensitive layer on an outer surface thereof and which is provided outside the cylindrical member, the electrical contact member comprising a first contact portion contacted with the cylindrical member; a second contact portion contacted with the external contact; a first extension connected electrically with the first contact portion and extending in a diametrical direction across an axis of the cylindrical member; and a second extension electrically connecting with the first extension and extending the diametrical direction toward the axis, the second extension being provided with the second contact portion, wherein when second contact portion is contacted by the external contact, second contact portion displaces along the axis.

Image Forming Apparatus and Photosensitive Unit

An image forming apparatus is described. The image forming apparatus may include: a main body provided with an accommodation chamber partitioned by an inner side surface; a photosensitive unit configured to slid between an accommodated position and a drawn position; a first electrode disposed on a first outer side surface on the photosensitive unit; a second electrode disposed on a second outer side surface on the photosensitive unit to protrude toward the inner side surface beyond the first outer side surface; a third electrode disposed on a first inner side surface on the inner side surface; and a fourth electrode disposed on a second inner side surface on the inner side surface to protrude toward the photosensitive unit beyond the first inner side surface.

Electrophotographic color image forming apparatus

A color electrophotographic image forming apparatus is usable with process cartridges that each include an electrophotographic photosensitive drum. The image forming apparatus includes a movable member that is movable between an inside of the main assembly of the apparatus and an outside of the main assembly of the apparatus in a direction crossing with a longitudinal direction of the drum while carrying the cartridges. A main assembly electrical contact is provided inside the main assembly along a movement path of the movable member. An intermediary electrical contact is provided and includes a first electrical contact portion that is disposed inside the movable member, with the intermediary electrical contact being electrically connectable to a cartridge electrical contact of a cartridge, and a second electrical contact portion is disposed outside the movable member, with the second electrical contact portion electrically connectable to a main assembly electrical contact provided in the main assembly.

Systems & Methods for Remanufacturing Imaging Components

A drive gear for a generally cylindrical imaging component. The drive gear includes a body for engaging the generally cylindrical imaging component; a cylindrical shaft attached to the body, the cylindrical shaft having an end surface; and three prongs extending longitudinally outward from the end surface.

Photosensitive drum unit, assembling method therefor, and disassembling method therefor

A photosensitive drum unit to which a coupling member 200 is easily mounted is provided. A drum flange 250 is fixed to one end portion of a cylinder 20 A having a photosensitive layer at a peripheral surface. The coupling member 200 is inserted into the drum flange 250. Finally, a closing member 230 is mounted to the drum flange 250.

Image Forming Apparatus, Image Forming Cartridge Supporter, and Image Forming Unit

An image forming apparatus has a body frame and a slide frame. The slide frame is configured to be pulled out from the body frame along a sliding direction. A plurality of image forming cartridges is detachably mounted on the slide frame. A plurality of electrode members is mounted on the slide frame and aligned along the sliding direction so as to correspond to the image forming cartridges. A body-side contact portion of each of the electrode members is electrically connected to the body frame. A cartridge-side contact portion of the electrode member is electrically connected to the image forming cartridge. The image forming cartridge is connected to the body via the corresponding electrode member when the slide frame mounting the image forming cartridges is inserted to the body frame.

Cartridge Having Detection Body

In a cartridge, a developing roller is configured to rotate around a first rotational axis extending in a predetermined direction and to carry developer thereon, the developing roller having a first end and a second end apart from each other in the predetermined direction, a from-first-to-second direction being defined along the predetermined direction as being directed from the first end to the second end. A developing electrode is formed of a conductive material and is configured to be electrically connected to the developing roller, the developing electrode including a main part and a protruding portion protruding from the main part in the from-first-to-second direction. A detection body is formed of an insulating material and is rotatably supported by the protruding portion, the detection body including a first opening that exposes part of the protruding portion and a covering portion covering part of the protruding portion.

Developing Cartridge Provided with Cover, and Process Cartridge Having the Same

A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.

Cartridge, mounting method for coupling member, and disassembling method for coupling member

A cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes coupling member that is provided for receiving a rotational force for rotating a developing roller, with a cylindrical member movably supporting one end portion of the coupling member inside of the cylindrical member, and a cylindrical member side force receiving portion being provided inside the cylindrical member for receiving the rotational force received by the coupling member. The cartridge further includes a first regulating portion for preventing one end portion of the coupling member from disengaging in an axial direction of the cylindrical member; and a second regulating portion for regulating deformation of the first regulating portion in a state in which one end portion of the coupling member is mounted to an inside of the cylindrical member with deformation of the first regulating portion.

Image Forming Apparatus Capable of Electrically Detecting Usage State of Process Cartridge Mounted Therein

An image forming apparatus includes: a process cartridge; a voltage applying unit; a contact; an electric line; a detection unit; and a control unit. The voltage applying unit generates a voltage and applies the voltage to the process cartridge. The contact is switched an ON state and an OFF state based on a usage state of the process cartridge The electric line electrically connects the voltage applying unit to the process cartridge. The detection unit is electrically connected to the electric line via the contact and provides either one of a first detection output corresponding to the ON state and a second detection output corresponding to the OFF state. The control unit executes a determination process in a determination mode for determining the usage state of the process cartridge based on either one of the first detection output and the second detection output of the detection unit.

COLOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A color image forming apparatus to which a plurality of cartridges are detachably mounted, including: main body side positioning portions provided on an apparatus main body; a cartridge supporting member detachably supporting the cartridges having cartridge side electric contacts and cartridge side positioned portions, and movable among a first position for forming images, a second position retracted from the first position, and a third position where the cartridges are pulled out of the main body; a pressing member pressing the positioned portions on the positioning portions; and main body side electric contacts provided on the main body, wherein the electric contacts are directly and electrically connected to the electric contacts when the positioned portions are pressed on the positioning portions by the pressing member. 19-. (canceled)10. A color electrophotographic image forming apparatus to which a plurality of cartridges are detachably mounted to form a color image on a recording medium , the color electrophotographic image forming apparatus comprising:a cartridge supporting member movable between an inside position of the main body and an outside position of the main body in a state of detachably supporting the plurality of cartridges having cartridge side electric contacts and cartridge side positioned portions, the cartridge supporting member moving among (i) a first position where the plurality of cartridges are located at an image forming position at which the plurality of cartridges form images at the inside position, (ii) a second position where the plurality of cartridges are retracted from the first position at the inside position, and (iii) a third position where the plurality of cartridges are pulled from the main body and are located at the outside position; andmain body side electric contacts provided on the main body for the plurality of cartridges, respectively, the main body side electric contacts moving in a longitudinal direction of the ...

Cartridge, and electrophotographic image forming apparatus which uses cartridge

A cartridge for use with a main assembly of an electrophotographic image forming apparatus, the cartridge being dismountable from the main assembly and including (i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis thereof; and (ii) a coupling member capable of taking a rotational force transmitting angular position for transmitting a rotational force for rotating the developing roller to the developing roller and a disengaging angular position in which the coupling member is inclined away from the rotational force transmitting angular position.

DRIVE TRANSMISSION PART FOR IMAGE FORMING APPARATUS

Drive transmission part and system including a columnar male part to be engaged with a twisted triangular female part to allow rotation of a part of an image forming apparatus. The columnar male part can include one or more projections of circular or elliptical cross section, arranged in a triangular pattern, or centrally located. The columnar part can also include a threaded surface to engage the female part. An intermediary part can also be provided to connect a ratchet type of part to the female part. 1. A rotating part installable in an image forming apparatus , comprising:a drive transmission member including a columnar male part configured to be inserted into a twisted triangular female part.2. The rotating part according to claim 1 , wherein the male part includes a projection having a curved surface to contact an edge of the female part to transmit a torque.3. The rotating part according to claim 2 , wherein the male part includes a plurality of projections having a circular cross section.4. The rotating part according to claim 3 , wherein the projections having a circular cross section are arranged in a triangular shape which is a same shape as a triangular shape of a cross section of the female part claim 3 , and the triangular shape of the projections is smaller than the triangular shape of the cross section of the female part.5. The rotating part according to claim 4 , wherein the same shape is an equilateral triangle shape.6. The rotating part according to claim 3 , wherein the projections each include a metal pin.7. The rotating part according to claim 2 , wherein the male part includes only a single elliptical cross section projection.8. The rotating part according to claim 2 , wherein the projection includes a screw threaded surface to engage the female part.9. The rotating part according to claim 8 , wherein the screw threaded surface is provided at a base portion of the projection claim 8 , and the projection includes a tip portion which is ...

CONNECTOR FOR HEATER, FIXING APPARATUS AND IMAGE FORMING APPARATUS

An image fixing apparatus includes a heater including a substrate, a first electrode provided on one side of the substrate and a second electrode provided on the other side of the substrate; and a connector, connected with the heater, for receiving electric power, the connector including an electrically insulative housing, and a contact terminal provided inside the housing and having first spring contact contacted to the first electrode and a second spring contact contacted to the second electrode, wherein the first spring contact and the second spring contact are disposed at positions different as seen in a direction perpendicular to a surface of the substrate. 1. An image fixing apparatus for heating and fixing an unfixed image formed on a recording material , comprising:a heater including a substrate, a first electrode provided on one side of said substrate and a second electrode provided on the other side of the substrate; anda connector, connected with said heater, for receiving electric power, said connector including an electrically insulative housing, and a contact terminal provided inside said housing and having first spring contact contacted to said first electrode and a second spring contact contacted to said second electrode,wherein said first spring contact and said second spring contact are disposed at positions different as seen in a direction perpendicular to a surface of said substrate.2. An apparatus according to claim 1 , wherein said first and second spring contacts have line-symmetry shapes.3. An apparatus according to claim 1 , wherein said first spring contact and said second spring contact overlaps with each other in an urging direction of the spring contacts claim 1 , in a state that connector is removed from said heater.4. An apparatus according to claim 1 , further comprising an endless belt for being heated by said heater claim 1 , and the unfixed image on the recording material is heated through said endless belt.5. An electrical ...

Image forming apparatus

A unit detachably mountable to an apparatus main assembly s provided with a coupling for receiving a rotational driving force from the apparatus main assembly. Also the apparatus main assembly is provided with a coupling to be engaged with the coupling of the unit. At least one of these couplings can be pushed in a direction parallel to a rotation shaft and one of the couplings is provided with an inclined surface. During mounting and demounting of the unit, the engagement between the couplings is released by the pushing-in of one of the couplings pushed by the inclined surface.

End portion member, photosensitive drum unit and process cartridge

A bearing member engageable and disengageable from a recessed portion of an image forming apparatus body is included. While the bearing member is engaged into the recessed portion, a cross-sectional area occupancy ratio which is a degree of area occupied by a cross-section of the bearing member to a cross-section of the recessed portion is 15% or higher and 75% or less. An outer peripheral shape of the bearing member in a cross-section is a hexagon, and assuming that a radius of a circumscribed circle of the hexagon is r 1g , and when a hexagon is formed by sides enclosed by a triangle formed at an opening of the recessed portion when the recessed portion is viewed from a front in the axial direction and a triangle formed at a bottom of the recessed portion, a radius of an inscribed circle of the hexagon is r 2h , r 1g −r 2h >0.

ELECTROPHOTOGRAPHIC COLOR IMAGE FORMING APPARATUS

A color electrophotographic image forming apparatus is usable with process cartridges that each include an electrophotographic photosensitive drum. The image forming apparatus includes a movable member that is movable between an inside of the main assembly of the apparatus and an outside of the main assembly of the apparatus in a direction crossing with a longitudinal direction of the drum while carrying the cartridges. A main assembly electrical contact is provided inside the main assembly along a movement path of the movable member. An intermediary electrical contact is provided and includes a first electrical contact portion that is disposed inside the movable member, with the intermediary electrical contact being electrically connectable to a cartridge electrical contact of a cartridge, and a second electrical contact portion is disposed outside the movable member, with the second electrical contact portion electrically connectable to a main assembly electrical contact provided in the main assembly. 1. A color electrophotographic image forming apparatus usable with process cartridges detachably mountable to a main assembly of said apparatus , said process cartridges each including an electrophotographic photosensitive drum and process means actable on said electrophotographic photosensitive drum , said color electrophotographic image forming apparatus comprising:a movable member which is movable between an inside of the main assembly of the apparatus and an outside of the main assembly of the apparatus in a direction crossing with a longitudinal direction of said electrophotographic photosensitive drum while carrying said process cartridges;a main assembly electrical contact provided inside said main assembly of the apparatus along a movement path of said movable member; andan intermediary electrical contact including a first electrical contact portion which is disposed inside said movable member and which is electrically connectable to a cartridge electrical ...

Image Forming Apparatus and Process Cartridge

The image forming apparatus includes a drum cartridge having a photosensitive drum and a drum drive input member; a developing cartridge configured to be movably mounted to the drum cartridge, the developing cartridge comprising a developing roller disposed so as to face the photosensitive drum and a developing drive input member; a drum drive transmission member configured to engage with the drum drive input member and configured to transmit drum driving force to the drum drive input member while permitting a positional gap of the drum drive input member within a predetermined range; and a developing drive transmission member configured to engage with the developing drive input member and configured to transmit developing driving force to the developing drive input member while permitting a positional gap of the developing drive input member within a predetermined range. 1. A process cartridge comprising: a photosensitive drum; and', 'a drum coupling configured to rotate the photosensitive drum; and, 'a drum frame including a developing roller; and', 'a developing coupling configured to rotate the developing roller,, 'a housing configured to accommodate toner therein, the housing includingwherein the housing is movable relative to the drum frame between a first position and a second position,wherein a surface of the developing roller is in contact with a surface of the photosensitive drum in a state where the housing is at the first position, andwherein the surface of the developing roller is spaced apart from the surface of the photosensitive drum.2. An image forming apparatus comprising: [ a photosensitive drum; and', 'a drum coupling configured to rotate the photosensitive drum; and, 'a drum frame including, a developing roller; and', 'a developing coupling configured to rotate the developing roller,, 'a housing configured to accommodate toner therein, the housing including], 'a process cartridge includingwherein the housing is movable relative to the drum frame ...

DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

An electrophotographic image forming apparatus includes a driving device including a first gear and a second gear, a power transmitter configured to transfer a rotational force applied in one direction from the motor to the first and second gears; a cam configured to set the power transmitter to one of a release mode in which the motor is disconnected from the first and second gears, a first connection mode in which one of the first and second gears is connected to the motor, and a second connection mode in which the other of the first and second gears is connected to the motor; and a clutch configured to selectively transfer the rotational force applied in the one direction from the motor to the cam. 1. An apparatus comprising:a motor configured to provide a rotational force;a first gear;a second gear;a power transmitter configured to selectively transfer the rotational force from the motor to the first gear and from the motor to the second gear; a release mode in which the rotational force from the motor is disconnected from the first gear and the second gear,', 'a first connection mode in which the first gear is connected to the rotational force from the motor and the second gear is disconnected from the rotational force from the motor, and', 'a second connection mode in which the second gear is connected to the rotational force from the motor and the first gear is disconnected from the rotational force from the motor; and, 'a cam configured to set a mode of the power transmitter to one ofa clutch configured to selectively transfer the rotational force from the motor to the cam.2. The apparatus of claim 1 , whereinthe power transmitter comprises a rotatable shaft configured to receive the rotational force from the motor, andthe first gear, the second gear, and the cam are rotatably provided on the rotatable shaft.3. The apparatus of claim 2 , wherein the power transmitter further comprises:a first fixed latch member fixed to the shaft and including a first fixed ...

IMAGE-FORMING APPARATUS AND CARTRIDGE

An image-forming apparatus includes a coupling recess to be engaged with a coupling protrusion to rotate the coupling protrusion, a second gear portion to be engaged with a gear to rotate the gear, and a driving force transmitter that is rotatable about a predetermined rotational axis. A torque required to rotate the gear is larger than a torque required to rotate the second gear portion in a state where the coupling recess does not engage the coupling protrusion. 1. An image-forming apparatus , comprising:a main body of the apparatus in which a cartridge including a first driven body, a second driven body, a first engaged portion to be engaged for receiving a driving force that causes the first driven body to be driven, and a second engaged portion to be engaged for receiving a driving force that causes the second driven body to be driven is installed; anda driving force transmitter that includes a first engaging portion engaging the first engaged portion to rotate the first engaged portion and a second engaging portion engaging the second engaged portion to rotate the second engaged portion and that is rotatable about a predetermined rotational axis,wherein a torque required to rotate the second engaged portion is larger than a torque required to rotate the second engaging portion in a state where the first engaging portion does not engage the first engaged portion.2. The image-forming apparatus according to claim 1 ,wherein the second engaging portion is a gear.3. The image-forming apparatus according to claim 1 ,wherein the first engaging portion is a coupling recess.4. The image-forming apparatus according to claim 1 ,wherein the second engaging portion is located farther than the first engaging portion from the rotational axis in a direction of a radius extending from a center that is on the rotational axis.5. The image-forming apparatus according to claim 1 ,wherein the second engaging portion is configured to engage the second engaged portion in a manner in ...

ROTATIONAL FORCE TRANSMITTING PART

A rotating force transmitting part for an electrophotographic photosensitive drum for a main assembly of the electrophotographic image forming apparatus, wherein the main assembly of the electrophotographic image forming apparatus includes a driving shaft, to be driven by a motor, having the rotating force applying portion, and wherein the electrophotographic photosensitive drum is dismountable from the main assembly of the electrophotographic image forming apparatus in a direction substantial perpendicular with an axial direction of the driving shaft, the rotating force transmitting part includes a coupling member engageable with the rotational force applying portion to receive a rotational force for rotating the electrophotographic photosensitive drum in the state in which electrophotographic photosensitive drum is mounted to the main assembly of the electrophotographic image forming apparatus, wherein the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the electrophotographic photosensitive drum to the electrophotographic photosensitive drum and a disengaging angular position in which the coupling member is inclined away from the axis of the electrophotographic photosensitive drum from the rotational force transmitting angular position, wherein when the process cartridge is dismounted from the main assembly of the electrophotographic image forming apparatus in a direction substantially perpendicular to the axis of the electrophotographic photosensitive drum, the coupling member moves from the rotational force transmitting angular position to the disengaging angular position. 1. A rotating force transmitting part for an electrophotographic photosensitive drum for a main assembly of the electrophotographic image forming apparatus , wherein the main assembly of the electrophotographic image forming apparatus includes a driving shaft , to be driven by a motor , having the ...

CARTRIDGE, ROTARY UNIT, AND IMAGE FORMING APPARATUS

A cartridge includes a coupling member, a transmitted member, and a rotary member. The transmitted member includes an accommodating portion configured to accommodate the coupling member, and a protruded portion integrally formed with an inner wall of the accommodating portion and protruding from the inner wall toward an inside of the accommodating portion. The coupling member includes a free end portion having a rotational force receiving portion that receives a rotational force, a connected portion connected to the transmitted member in such a manner that at least a part of the connected portion can be accommodated in the accommodating portion, and a recessed portion provided at the connected portion so that the protruded portion can enter. An inclination angle of a rotation axis of the coupling member relative to a rotation axis of the transmitted member is variable. 1. A coupling member configured to receive and transmit a rotational force , comprising:a first portion having a protrusion for receiving the rotational force;a second portion having two recessed portions for transmitting the rotational force and an intermediate portion; anda third portion configured to connect the first portion and the second portion;wherein each of the two recessed portions is formed by at least a first surface and a second surface,wherein the first surfaces are parallel to a rotational axis of the third portion rotated by the rotational force and the first surfaces are parallel with each other,wherein the second surfaces are parallel to a rotational axis of the third portion rotated by the rotational force and the second surfaces are parallel with each other,wherein the first surfaces and the second surfaces intersect with each other, andwherein the intermediate portion is a portion disposed between the second surfaces.217-. (canceled) The present invention relates to an image forming apparatus. Further, the present invention relates to an image forming system.The image forming ...

CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A process cartridge detachably mountable to an electrophotographic image forming apparatus including a main assembly side drive transmission member and a main assembly side urging member, the cartridge including a rotatable photosensitive drum; a rotatable developing roller for developing a latent image formed on the drum, the developing roller contactable to and spaceable from the drum; an urging force receiving portion for receiving an urging force from the urging member to space the roller from the drum; a cartridge side drive transmission portion capable of coupling with the main assembly side drive transmission member to receive a rotational force for rotating the roller; a releasing member capable of urging the main assembly side drive transmission member to decouple the cartridge side drive transmission member from the main assembly side drive transmission member by the urging force receiving portion receiving the urging force from the main assembly side urging member. 1. A process cartridge detachably mountable to a main assembly of the electrophotographic image forming apparatus including a main assembly side drive transmission member and a main assembly side urging member , said process cartridge comprising:(i) a rotatable photosensitive member;(ii) a rotatable developing roller configured to develop a latent image formed on said photosensitive member, said developing roller being capable of contacting to and the spacing from said photosensitive member;(iii) an urging force receiving portion configured to receive an urging force from the main assembly side urging member to space said developing roller from said photosensitive member;(iv) a cartridge side drive transmission member capable of coupling with the main assembly side drive transmission member to receive a rotational force for rotating said developing roller; and(v) a releasing member capable of urging the main assembly side drive transmission member to decouple said cartridge side drive ...

DEVELOPING CARTRIDGE COMPRISING MECHANISM FOR INFORMATION DETECTION

A developing cartridge may include a housing including an outer surface, a small-diameter gear, a large-diameter gear, a first gear, and a moving member. The small-diameter gear may include a first engaging portion positioned on at least a portion of a peripheral surface of the small-diameter gear. The large-diameter gear may be positioned farther from the outer surface than the small-diameter gear from the outer surface. The large-diameter gear may be rotatable together with the small-diameter gear. The first gear may include a second engaging portion, a first end surface, a second end surface, and at least one protrusion. The moving member may include a contact portion configured to move the moving member from one position to another position in a state where the contact portion is in contact with the protrusion. 1. A developing cartridge comprising:a housing including an outer surface, the housing configured to accommodate a developing agent;a small-diameter gear including a first engaging portion positioned on at least a portion of a peripheral surface of the small-diameter gear, the small-diameter gear being rotatable about a first axis extending in an axial direction through the outer surface;a large-diameter gear positioned farther from the outer surface than the small-diameter gear from the outer surface, the large-diameter gear being rotatable together with the small-diameter gear about the first axis;a first gear rotatable from a first position to a second position about a second axis different from the first axis, the first gear comprising:a second engaging portion positioned on at least a portion of a peripheral surface of the first gear, the second engaging portion being configured to engage with at least a portion of the first engaging portion;a first end surface facing the outer surface in the axial direction;a second end surface positioned opposite to the first end surface in the axial direction; andat least one protrusion positioned at the second ...

Drive transmission part for image forming apparatus

Drive transmission part and system including a columnar male part to be engaged with a twisted triangular female part to allow rotation of a part of an image forming apparatus. The columnar male part can include one or more projections of circular or elliptical cross section, arranged in a triangular pattern, or centrally located. The columnar part can also include a threaded surface to engage the female part. An intermediary part can also be provided to connect a ratchet type of part to the female part.

Image Forming Apparatus Including Coupling Member Selectively Coupled to Photosensitive Drum

An image forming apparatus includes a main body, endless belt, photosensitive drums, setting unit, contacting/separating mechanism, transmitting mechanism, and coupling members. The photosensitive drums are disposed in confrontation with the endless belt and are arranged in a first direction. Each photosensitive drum has an axis extending in a second direction perpendicular to the first direction. The setting unit sets the image forming apparatus to a monochrome mode or color mode. The contacting/separating mechanism controls at least one photosensitive drum to contact or separate from the endless in accordance with the set mode. The transmitting mechanism selectively transmits drive power to photosensitive drums. Each coupling member is selectively coupled to the corresponding photosensitive drum and has a coupling axis extending in the second direction. Each coupling member is uncoupled from the corresponding photosensitive drum when the contacting/separating mechanism controls the corresponding photosensitive drum to separate from the endless belt.

DRUM UNIT, CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND COUPLING MEMBER

A drum unit includes a photosensitive drum in a coupling member. The coupling member includes an engageable member having a driving force receiving portion which is capable of entering a recess of a driving shaft to receive a driving force for rotating photosensitive drum. The coupling member includes a holding member configured to hold said engageable member so as to be slidable at least in a radial direction of said drum unit. 1. A drum unit detachably mountable to a main assembly of an electrophotographic image forming apparatus , the main assembly including a driving shaft provided with a recess , said drum unit comprising:(1) a photosensitive drum; and(2) a coupling member provided on said photosensitive drum and including, (2-1) an engageable member having a driving force receiving portion configured to enter the recess to receive a driving force for rotating said photosensitive drum, (2-2) a holding member configured to hold said engageable member so as to be slidable at least in a radial direction of said drum unit, (2-3) an urging member configured to urge said engageable member.2277.-. (canceled) The present invention relates to an image forming apparatus using an electrophotographic process, a drum unit, a cartridge and a coupling which are usable with the image forming apparatus, or the like.In an electrophotographic image forming apparatus, there is known a structure in which elements such as a photosensitive drum and a developing roller, which are rotatable members related to image formation, are integrated into a cartridge which is detachably mountable relative to a main assembly of an image forming apparatus (hereinafter, the apparatus main assembly). In such a structure, a structure for receiving a driving force from the apparatus main assembly to rotate the photosensitive drum in the cartridge is employed in many apparatuses. At this time, a structure is known in which a driving force is transmitted through engagement between a coupling member on a ...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

A process cartridge includes a photosensitive drum; a developing roller; a developer supplying roller, provided in contact with the developing roller; a driving force receiving portion provided at a shaft end of the supplying roller; a first driving force transmitting portion; a second driving force transmitting portion; flexible sheets provided adjacent to an engaging portion between the first portion and the second portion to intermittently contact the second portion with rotation of the second portion, wherein a rotational direction of the roller is opposite to that of the roller, and a peripheral speed of the roller is larger than that of the roller. 12.-. (canceled)3. A process cartridge comprising:(i) a photosensitive drum;(ii) a rotatable developing roller configured to develop an electrostatic latent image formed on the photosensitive drum;(iii) a rotatable toner supplying roller provided in contact with the developing roller and configured to supply toner to the developing roller, the toner supplying roller including a shaft;(iv) a toner chamber configured to contain toner;(v) a developing chamber in which the toner supplying roller is positioned;(vi) a rotatable feeding member provided in the toner chamber and configured to feed the toner from the toner chamber to the developing chamber;(vii) a developing blade provided in contact with the developing roller and configured to regulate toner on a surface of the developing roller,(viii) a coupling provided at the shaft of the toner supplying roller and configured to receive a driving force; and(ix) a plurality of gears configured to transmit the driving force from the toner supplying roller to the developing roller and the feeding member such that (i) the toner supplying roller and the feeding member rotate in a direction opposite to a rotational direction of the developing roller, and (ii) a speed of a surface of the toner supplying roller is greater than a speed of the surface of the developing roller, ...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

A process cartridge includes a photosensitive drum; a developing roller; a developer supplying roller, provided in contact with the developing roller; a driving force receiving portion provided at a shaft end of the supplying roller; a first driving force transmitting portion; a second driving force transmitting portion; flexible sheets provided adjacent to an engaging portion between the first portion and the second portion to intermittently contact the second portion with rotation of the second portion, wherein a rotational direction of the roller is opposite to that of the roller, and a peripheral speed of the roller is larger than that of the roller. 12-. (canceled)3. A process cartridge comprising: a photosensitive drum, and', 'a drum frame supporting the photosensitive drum and having a rotation supporting portion; and, 'a drum unit including a developing roller configured to develop an electrostatic latent image formed on the photosensitive drum by supplying developer to the photosensitive drum,', 'a developing frame supporting the developing roller so that the developing roller is rotatable about a first rotational axis, the developing frame having a rotation supported portion supported by the rotation supporting portion of the drum frame so that the developing frame is rotatable, relative to the drum frame, about a second rotational axis,', 'an urging member for urging the developing frame toward the drum frame so that the developing roller is in contact with the photosensitive drum,', 'a developer supplying roller configured to supply the developer to the developing roller,', 'a developer feeding member configured to feed the developer toward the developer supplying roller,', 'a driving force receiving member configured to receive a driving force from outside of the process cartridge, wherein the driving force receiving member is provided on a first end portion of the developing unit in a direction of the first rotational axis,', 'a first driving force ...

Image Forming Apparatus, Image Forming Cartridge Supporter, and Image Forming Unit

An image forming apparatus has a body frame and a slide frame. The slide frame is configured to be pulled out from the body frame along a sliding direction. A plurality of image forming cartridges is detachably mounted on the slide frame. A plurality of electrode members is mounted on the slide frame and aligned along the sliding direction so as to correspond to the image forming cartridges. A body-side contact portion of each of the electrode members is electrically connected to the body frame. A cartridge-side contact portion of the electrode member is electrically connected to the image forming cartridge. The image forming cartridge is connected to the body via the corresponding electrode member when the slide frame mounting the image forming cartridges is inserted to the body frame. 1. An image forming apparatus comprising:a body frame;a frame being mountable to and dismountable from the body frame, the frame including a first roller, the first roller including a first peripheral surface on which toner particles are deposited;a cartridge being mountable to and dismountable from the frame, the cartridge including a second roller and a cartridge contact, the second roller including a second peripheral surface on which toner particles are deposited; anda wire supported on the frame, the frame being electrically connected to the cartridge contact in a state where the cartridge is mounted to the frame.2. The image forming apparatus according to claim 1 ,wherein the first roller is a photoconductive drum, andwherein the second roller is a development roller.3. The image forming apparatus according to claim 1 , wherein the wire is formed from steel.4. The image forming apparatus according to claim 1 , wherein the wire is a coil spring.5. The image forming apparatus according to claim 1 , wherein the wire is a torsion coil spring.6. The image forming apparatus according to claim 1 ,wherein the first roller is rotatable about a first axis extending from a first direction ...

Image Forming Apparatus Including Coupling Member Selectively Coupled to Photosensitive Drum

An image forming apparatus includes a main body, endless belt, photosensitive drums, setting unit, contacting/separating mechanism, transmitting mechanism, and coupling members. The photosensitive drums are disposed in confrontation with the endless belt and are arranged in a first direction. Each photosensitive drum has an axis extending in a second direction perpendicular to the first direction. The setting unit sets the image forming apparatus to a monochrome mode or color mode. The contacting/separating mechanism controls at least one photosensitive drum to contact or separate from the endless in accordance with the set mode. The transmitting mechanism selectively transmits drive power to photosensitive drums. Each coupling member is selectively coupled to the corresponding photosensitive drum and has a coupling axis extending in the second direction. Each coupling member is uncoupled from the corresponding photosensitive drum when the contacting/separating mechanism controls the corresponding photosensitive drum to separate from the endless belt. 1. An image forming apparatus comprising:a main casing; a first photosensitive drum supported by and movable with the process frame in a case where the process frame moves relative to the main casing between the first position and the second position, and the first photosensitive drum being detachable from the process frame; and', 'a second photosensitive drum supported by and movable with the process frame in a case where the process frame moves relative to the main casing between the first position and the second position, and the second photosensitive drum being non-detachably supported by the process frame at all positions of the process frame relative to the main casing;, 'a process frame configured to move relative to the main casing between a first position and a second position, the process frame being in the main casing in a case where the process frame is in the first position, and the process frame being out ...

Developing Cartridge Having Electrode

A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction.

Image Forming Apparatus and Process Cartridge

The image forming apparatus includes a drum cartridge having a photosensitive drum and a drum drive input member; a developing cartridge configured to be movably mounted to the drum cartridge, the developing cartridge comprising a developing roller disposed so as to face the photosensitive drum and a developing drive input member; a drum drive transmission member configured to engage with the drum drive input member and configured to transmit drum driving force to the drum drive input member while permitting a positional gap of the drum drive input member within a predetermined range; and a developing drive transmission member configured to engage with the developing drive input member and configured to transmit developing driving force to the developing drive input member while permitting a positional gap of the developing drive input member within a predetermined range. 1. An image forming apparatus comprising: a photosensitive drum; and', 'a drum coupling configured to rotate the photosensitive drum; and, 'a drum cartridge including a developing roller; and', 'a developing coupling configured to rotate the developing roller,, 'a developing cartridge configured to accommodate toner therein, the developing cartridge includingwherein the developing cartridge is movable relative to the drum cartridge between a first position and a second position,wherein a surface of the developing roller is in contact with a surface of the photosensitive drum in a case where the developing cartridge is at the first position,wherein the surface of the developing roller is spaced apart from the surface of the photosensitive drum in a case where the developing cartridge is at the second position, and 'a coupling configured to couple to the drum coupling, the coupling being movable between a third position and a fourth position relative to the drum coupling.', 'wherein the image forming apparatus further comprises2. The image forming apparatus according to claim 1 ,wherein the third ...

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, DEVELOPING APPARATUS, AND COUPLING MEMBER

A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for transmitting the rotating force received through the rotating force receiving portion to the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller, a pre-engagement angular position which is taken before the coupling member is engaged with the rotating force applying portion and in which the coupling member is inclined away from the rotational force transmitting angular position, and a disengaging angular position which is taken for the coupling member to disengage from the driving shaft and in which the coupling member is inclined away from the rotational force transmitting angular position in a direction opposite to the pre-engagement angular position; wherein in response to a movement of the developing device when the movable member moves in the one direction, the coupling member moves from the pre- ...

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, DEVELOPING APPARATUS, AND COUPLING MEMBER

A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for transmitting the rotating force received through the rotating force receiving portion to the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller, a pre-engagement angular position which is taken before the coupling member is engaged with the rotating force applying portion and in which the coupling member is inclined away from the rotational force transmitting angular position, and a disengaging angular position which is taken for the coupling member to disengage from the driving shaft and in which the coupling member is inclined away from the rotational force transmitting angular position in a direction opposite to the pre-engagement angular position; wherein in response to a movement of the developing device when the movable member moves in the one direction, the coupling member moves from the pre- ...

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, DEVELOPING APPARATUS, AND COUPLING MEMBER

A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for transmitting the rotating force received through the rotating force receiving portion to the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller, a pre-engagement angular position which is taken before the coupling member is engaged with the rotating force applying portion and in which the coupling member is inclined away from the rotational force transmitting angular position, and a disengaging angular position which is taken for the coupling member to disengage from the driving shaft and in which the coupling member is inclined away from the rotational force transmitting angular position in a direction opposite to the pre-engagement angular position; wherein in response to a movement of the developing device when the movable member moves in the one direction, the coupling member moves from the pre- ...

DEVELOPING CARTRIDGE CAPABLE OF MAINTAINING CONTACTING PRESSURE BETWEEN DEVELOPING ROLLER AND PHOTOSENSITIVE DRUM REGARDLESS OF RESIDUAL AMOUNT OF TONER

A developing cartridge including a casing, a developing roller, a developing roller gear, a gear cover, a first boss, and a pressure receiving surface. The developing roller is positioned closer to a first end portion of the casing than to a second end portion of the casing in a first direction. The first boss extends in a second direction and is movable together with the casing. The first boss is positioned away from the developing roller in the first direction by a first distance and also positioned away from the developing roller in a third direction. The pressure receiving surface is positioned further from the developing roller than the first boss is from the developing roller in the third direction. The pressure receiving surface is positioned away from the developing roller by the first distance or by a second distance shorter than the first distance. 1. A developing cartridge comprising:a casing configured to accommodate therein toner and extending in a first direction, the casing having a first end portion in the first direction and a second end portion remote from the first end portion in the first direction;a developing roller rotatable about a developing axis extending in a second direction different from the first direction, the developing roller being positioned closer to the first end portion than to the second end portion in the first direction, the developing roller having:an exposed surface positioned at one end portion in a third direction of the developing roller and exposed to an outside of the casing; anda non-exposed surface positioned at another end portion in the third direction of the developing roller and positioned inside the casing;a gear rotatable about a gear axis extending in the second direction and positioned at one end portion in the second direction of the developing roller;a gear cover positioned at one end portion in the second direction of the casing and covering at least a part of the gear;a first boss positioned at an outer ...

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

A cartridge attachable to and detachable from a main body of an image forming apparatus includes a process unit configured to perform image formation, a frame configured to support the process unit, and a conductive member injection-molded integrally with the frame using a conductive resin, configured contact with a main body electrode portion provided in the main body of the image forming apparatus, and to be electrically connected with the process unit, and a contact surface of the conductive member configured to contact with the main body electrode portion, includes a plurality of protruded portions.

IMAGE FORMING APPARATUS

An image forming apparatus includes: an image carrier that carries a toner image on a surface thereof while rotating, from which the toner image is transferred to a transfer member; a scraper that comes into contact with an area of the surface of the image carrier from which the toner image has been transferred and that scrapes residue off the image carrier; and a flattening device that flattens a pile of residue that has been scraped off by the scraper and has accumulated. 1. An image forming apparatus comprising:an image carrier that carries a toner image on a surface thereof while rotating, from which the toner image is transferred to a transfer member;a scraper that comes into contact with an area of the surface of the image carrier from which the toner image has been transferred and that scrapes residue off the image carrier; anda flattening device that flattens a pile of residue that has been scraped off by the scraper and has accumulated.2. The image forming apparatus according to claim 1 , wherein the flattening device is a vibration applying device that vibrates the pile of residue accumulated in an accumulation area.3. The image forming apparatus according to claim 2 , further comprising:a charger that comes into contact with the image carrier and charges the image carrier; anda power applying device that applies, to the charger, image-carrier charging power including alternating power,wherein the vibration applying device causes the power applying device to apply the alternating power whose amplitude or frequency has been increased.4. The image forming apparatus according to claim 2 , wherein the vibration applying device is a mechanical vibration device.5. The image forming apparatus according to claim 1 , wherein the flattening device is a relative movement device that causes the image carrier and the scraper to move relative to each other.6. The image forming apparatus according to claim 5 , wherein the relative movement device is a device that causes ...

DEVELOPING CARTRIDGE HAVING COUPLING AND DEVELOPING ROLLER

In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body. 1. A cartridge comprising;a developing roller rotatable about a first axis extending in a first direction;a housing configured to accommodate developing material therein, the housing having a first outer surface and a second outer surface separated from the first outer surface in the first direction;a coupling rotatable about a second axis extending in the first direction, the coupling being positioned at the first outer surface;a supply roller rotatable about a third axis extending in the first direction, the supply roller including a supply roller shaft; anda first gear rotatable about the third axis with the supply roller, the first gear being mounted to the supply roller shaft, the first gear being positioned at the second outer surface.2. The cartridge according to claim 1 ,wherein the supply roller is rotatable about the third axis in association with rotation of the coupling.3. The cartridge according to claim 1 ,wherein the supply roller shaft has a first end portion and a second end portion separated from the first end portion in the first direction, the first end is positioned at the first outer surface, the second end is positioned at the second outer surface, andwherein ...

ATTACHMENT AND DETACHMENT STRUCTURE OF TONER CONTAINER AND IMAGE FORMING APPARATUS

An attachment and detachment structure attaches and detaches a toner container to and from an attachment unit. The toner container includes a container main body, a rotational member and a power transmission body. The rotational member rotates around an axis to agitate the toner contained in the container main body. The power transmission body is provided outside the container main body and rotates around an axis to transmit a rotational force to the rotational member. The attachment unit includes a contact body which comes into contact with the power transmission body on attachment process and detachment process of the toner container to and from the attachment unit and rotates the power transmission body. The power transmission body comes into contact with the contact body on the attachment process of the toner container to the attachment unit, and is rotated around the axis to rotate the rotational member around the axis. 1. An attachment and detachment structure of a toner container to and from an attachment unit , whereinthe toner container includes:a container main body containing a toner;a rotational member rotating around an axis to agitate the toner contained in the container main body; anda power transmission body provided outside the container main body and rotating around an axis to transmit a rotational force to the rotational member,the attachment unit includes a contact body which comes into contact with the power transmission body on attachment process and detachment process of the toner container to and from the attachment unit and rotates the power transmission body, andthe power transmission body comes into contact with the contact body on the attachment process of the toner container to the attachment unit, and is rotated around the axis to rotate the rotational member around the axis.2. The attachment and detachment structure of the toner container to and from the attachment unit according to claim 1 , whereinthe toner container further includes ...

Torque receiving assembly, photosensitive drum and process cartridge

A torque receiving assembly, a photosensitive drum and a process cartridge having such torque receiving assembly. The torque receiving assembly having a body having an axis and having an accommodating chamber; a driven shaft disposed coaxially with the body, the driven shaft including a guide stem and a coupling head provided at one axial end of the guide stem, the guide stem having a pair of output arms which extend outwardly in a radial direction, the coupling head having a plurality of projections; wherein a pair of input arms are provided at an inner wall of the accommodating chamber and configured for abutting with the output arms; the guide stem is movable in the axial direction relative to the body, the torque receiving assembly further comprises a distance-limiting mechanism that defines a maximum distance the driven shaft is able to move relative to the body in the axis direction. The photosensitive drum and process cartridge according to the present invention both includes said torque receiving assembly.

DEVELOPING CARTRIDGE INCLUDING HOUSING AND GEAR

In a cartridge, a developing roller is configured to rotate around a first rotational axis extending in a predetermined direction and to carry developer thereon, the developing roller having a first end and a second end apart from each other in the predetermined direction, a from-first-to-second direction being defined along the predetermined direction as being directed from the first end to the second end. A developing electrode is formed of a conductive material and is configured to be electrically connected to the developing roller, the developing electrode including a main part and a protruding portion protruding from the main part in the from-first-to-second direction. A detection body is formed of an insulating material and is rotatably supported by the protruding portion, the detection body including a first opening that exposes part of the protruding portion and a covering portion covering part of the protruding portion. 1. A developing cartridge comprising:a developing roller rotatable about a first axis extending in an extending direction, the developing roller having a developing roller shaft;a casing configured to accommodate developer therein, the casing having a first outer surface positioned at one side of the casing in the extending direction;an electrode electrically connected to the developing roller shaft, the electrode positioned at the outer surface, the electrode including a first protrusion extending in the extending direction, the first protrusion spaced apart from the developing roller shaft;a gear positioned at the first outer surface, the gear rotatable about a first axis extending in the extending direction;a plurality of teeth movable relative to the electrode from a first position to a second position, at least one of the plurality of teeth engaging with the gear in a case where the plurality of teeth is in the first position, any one of the plurality of teeth not engaging with the gear in a case where the plurality of teeth is in the ...

SUPPORT ASSEMBLY FOR SUPPORTING TONER CARTRIDGE TO BE MOUNTED OR DETACHED

An example image forming apparatus includes a main body, a driving motor rotatable in a first direction to provide a driving force to a developing cartridge and rotatable in a second direction opposite to the first direction, and a support assembly to, based on the developing cartridge being mounted to the main body, provide the driving force of the driving motor in the first direction to the mounted developing cartridge, and detach the mounted developing cartridge from the main body using the driving force of the driving motor in the second direction. 1. An image forming apparatus comprising:a main body;a driving motor rotatable in a first direction to provide a driving force to a toner cartridge and rotatable in a second direction opposite to the first direction; and based on the toner cartridge being mounted to the main body, provide the driving force of the driving motor in the first direction to the mounted toner cartridge, and', 'detach the mounted toner cartridge from the main body using the driving force of the driving motor in the second direction., 'a support assembly to2. The image forming apparatus of claim 1 , wherein the support assembly comprises:a support housing;a pressing member to linearly move between a first position in which the pressing member is disposed inside the support housing and a second position in which the pressing member projects from the support housing, the pressing member being disposed outside the support housing; anda driving force transfer member to rotate by receiving driving force from the driving motor and to transfer the driving force to the pressing member when the driving motor rotates in the second direction.3. The image forming apparatus of claim 2 , wherein the pressing member is to linearly move to the first position by mounting of the toner cartridge and to linearly move to the second position by rotation of the driving motor in the second direction.4. The image forming apparatus of claim 3 , wherein the pressing ...

CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A control member for controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control member rotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion. 128-. (canceled)29. A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus , the cartridge comprising:a developing roller configured to develop a latent image;a developing frame rotatably supporting the developing roller;a supporting member supporting the developing frame such that the developing frame is movable between (a) a developing position for developing the latent image by the developing roller and (b) a non-developing position retracted from the developing position;a clutch configured to be switchable between a state in which a driving force is transmitted toward the developing roller and a state in which the transmission of the driving force is blocked, the driving force being transmitted when the developing frame is in the developing position, and the transmission of the driving force being blocked when the developing frame is in the non-developing position; andan urging portion configured to urge the developing frame toward the developing position when the developing frame is in the non-developing position and configured not to urge the developing frame when the developing frame is in the developing position.30. A cartridge according to claim 29 , wherein the supporting member rotatably supports a photosensitive member claim 29 ,wherein the developing roller is configured to be close to the photosensitive member when the developing device frame is in the developing position, andwherein the developing roller is configured to be spaced from the photosensitive member when the developing frame is in the non-developing position.31. A cartridge detachably mountable to a ...

Image Forming Apparatus

An image forming apparatus may include: a process cartridge, an apparatus body and a spacing member. The process cartridge may be detachably mountable to the apparatus body and include a photosensitive unit having a photosensitive member, a developing unit having a developing roller, and a driving input part into which a driving force from the apparatus body is configured to be inputted. The apparatus body may include a driving input member which is configured to input the driving force. Additionally or alternatively, the spacing member may be attached to the process cartridge and configured to space the photosensitive member and the developing roller. The spacing member may include a first cover part which is located between the driving input part and the driving input member and covers at least a portion of the driving input part. 1. An image forming apparatus comprising: a photosensitive unit having a photosensitive drum configured to receive formation of an electrostatic latent image thereon,', 'a developing unit having a developing roller which is configured to contact the photosensitive drum to supply developer to the photosensitive drum, and', 'a coupling configured to receive input of a driving force from an apparatus body;, 'a process cartridge including a mounting part to which the process cartridge is mountable, and', 'a driving input member configured to move inwards and outwards in an axial direction of the developing roller and to input the driving force to rotate the developing roller when being engaged with the coupling; and, 'the apparatus body including 'a first cover part located between the coupling and the driving input member and configured to cover at least a portion of the coupling.', 'a spacing member attached to the process cartridge and configured to space the photosensitive drum and the developing roller, the spacing member including2. The image forming apparatus according to claim 1 ,wherein the developing unit is displaceably provided ...

CARTRIDGE, ROTARY UNIT, AND IMAGE FORMING APPARATUS

A cartridge includes a coupling member, a transmitted member, and a rotary member. The transmitted member includes an accommodating portion configured to accommodate the coupling member, and a protruded portion integrally formed with an inner wall of the accommodating portion and protruding from the inner wall toward an inside of the accommodating portion. The coupling member includes a free end portion having a rotational force receiving portion that receives a rotational force, a connected portion connected to the transmitted member in such a manner that at least a part of the connected portion can be accommodated in the accommodating portion, and a recessed portion provided at the connected portion so that the protruded portion can enter. An inclination angle of a rotation axis of the coupling member relative to a rotation axis of the transmitted member is variable. 1. A coupling member configured to receive and transmit a rotational force , comprising:a first portion having a protrusion for receiving the rotational force;a second portion having two recessed portions for transmitting the rotational force and an intermediate portion; anda third portion configured to connect the first portion and the second portion,wherein each of the two recessed portions is formed by at least a first surface and a second surface,wherein the first surfaces are parallel to a rotational axis of the third portion rotated by the rotational force and the first surfaces are parallel with each other,wherein the second surfaces are parallel to a rotational axis of the third portion rotated by the rotational force and the second surfaces are parallel with each other,wherein the first surfaces and the second surfaces intersect with each other, andwherein the intermediate portion is a portion disposed between the second surfaces.2. The coupling member according to claim 1 , wherein the first surfaces are configured to transmit the rotational force.3. The coupling member according to claim 1 ...

DEVELOPING CARTRIDGE INCLUDING SHAFT AND CAM HAVING CAM SURFACE

A developing cartridge includes: a casing; a developing roller; a shaft; and a cam. The casing is configured to accommodate developer therein. The developing roller is rotatable about a first axis extending in an axial direction. The shaft extends along a second axis extending in the axial direction. The shaft is movable along the second axis. The cam is movable along the second axis in response to axial movement of the shaft. The cam has a cam surface non-parallel with the second axis. 1. A developing cartridge comprising:a casing configured to accommodate developer therein;a developing roller rotatable about a first axis extending in a first direction, the developing roller having an outer circumferential surface including one end portion and another end portion in a second direction, the one end portion being exposed to an outside of the casing, the another end portion being positioned inside the casing;a shaft extending along a second axis extending in the first direction, the shaft being movable in the first direction relative to the casing and the developing roller, the shaft being movable in the second direction together with the casing and the developing roller, the shaft having one end portion and another end portion in the first direction; anda first inclined surface positioned at the one end portion of the shaft in the first direction and movable together with the shaft, the first inclined surface being inclined relative to the first direction such that a distance between the shaft and the first inclined surface in a radial direction of the shaft increases in a direction from the one end portion of the shaft in the first direction to the another end portion of the shaft in the first direction, the radial direction of the shaft being the second direction.2. The developing cartridge according to claim 1 , wherein the shaft has the first inclined surface claim 1 , andwherein a distance between the second axis and the first inclined surface in the radial ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A drum unit for a cartridge includes a photosensitive drum and a coupling member having a rotational axis, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, an arm portion extending from the inner surface of the cylindrical portion, and a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member. The arm portion and the projection are movable relative to the inner surface. 1235.-. (canceled)236. A drum unit for a cartridge , the drum unit comprising:a photosensitive drum; anda coupling member having a rotational axis, the coupling member being operatively connected to the photosensitive drum, the coupling member including (i) a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, (ii) an arm portion extending from the inner surface of the cylindrical portion, and (iii) a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member,wherein the arm portion and the projection are movable relative to the inner surface.237. A drum unit according to claim 236 , wherein the arm portion is movable between a first position and a second position claim 236 , andwherein the projection is closer to the rotational axis of the coupling member when the arm portion is in the first position than when the arm portion is in the second position.238. A drum unit according to claim 237 , wherein the arm portion is biased towards the first position.239. A drum unit according to claim 236 , wherein the coupling member includes a plurality of arm portions extending from the inner surface of the cylindrical portion claim 236 , with a projection being projected from each of the arm portions such that an end of each of the projections is ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A process cartridge includes a photosensitive drum, a developing roller configured to develop a latent image on the photosensitive drum with toner, and a coupling member having a rotational axis, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, an arm portion extending from the inner surface of the cylindrical portion, and a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member. The arm portion and the projection are movable relative to the inner surface. 1235.-. (canceled)236. A process cartridge comprising:a casing;toner contained in the casing;a photosensitive drum rotatably supported by the casing;a developing roller configured to develop a latent image on the photosensitive drum with toner; anda coupling member having a rotational axis, the coupling member being operatively connected to the photosensitive drum, the coupling member including (i) a cylindrical portion having an outer surface and an inner surface that extends about the rotational axis of the coupling member, (ii) an arm portion extending from the inner surface of the cylindrical portion, and (iii) a projection projecting from the arm portion in a direction toward the rotational axis of the coupling member,wherein the arm portion and the projection are movable relative to the inner surface.237. A process cartridge according to claim 236 , wherein the arm portion is movable between a first position and a second position claim 236 , andwherein the projection is closer to the rotational axis of the coupling member when the arm portion is in the first position than when the arm portion is in the second position.238. A process cartridge according to claim 237 , wherein the arm portion is biased towards the first position.239. A process cartridge according to ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A process cartridge includes a photosensitive drum and a coupling member operatively connected to the photosensitive drum, with the coupling member including an arm portion and a projection projecting from the arm portion. The arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum. 1235.-. (canceled)236. A process cartridge comprising:a casing;toner contained in the casing;a photosensitive drum rotatably supported by the casing;a developing roller configured to develop a latent image formed on the photosensitive drum with the toner;a coupling member operatively connected to the photosensitive drum, the coupling member including an arm portion and a projection projecting from the arm portion; anda cleaning blade configured to remove toner from a surface of the photosensitive drum,a charging roller configured to charge the photosensitive drum,wherein the photosensitive drum is rotatable such that a part of the surface of the photosensitive drum moves from an upstream position where the part of the surface of the photosensitive drum is adjacent to the cleaning blade to a downstream position where the part of surface of the photosensitive drum is adjacent to the developing roller via an intermediate position where the part of surface of the photosensitive drum is adjacent to the charging roller, andwherein the arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum.237. A process cartridge according to claim 236 , wherein the projection projects from the arm portion to an end of the projection such that the end of the projection is closer to a rotational axis of the coupling member than the arm portion is to the rotational axis of the coupling member.238. ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A Process cartridge includes a photosensitive drum and a coupling member operatively connected to the photosensitive drum, with the coupling member including an arm portion and a projection projecting from the arm portion, the arm portion being capable of transmitting driving force from the projection towards the photosensitive drum. The arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum. 1235.-. (canceled)236. A process cartridge comprising:a casing;toner contained in the casing;a photosensitive drum rotatably supported by the casing;a developing roller configured to develop a latent image formed on the photosensitive drum with the toner;a coupling member operatively connected to the photosensitive drum, the coupling member including an arm portion and a projection projecting from the arm portion, the arm portion being capable of transmitting driving force from the projection towards the photosensitive drum; anda cleaning blade configured to remove toner from a surface of the photosensitive drum,a charging roller configured to charge the photosensitive drum,wherein the photosensitive drum is rotatable such that a part of the surface of the photosensitive drum moves from an upstream position where the part of the surface of the photosensitive drum is adjacent to the cleaning blade to a downstream position where the part of surface of the photosensitive drum is adjacent to the developing roller via an intermediate position where the part of surface of the photosensitive drum is adjacent to the charging roller, andwherein the arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum.237. A process cartridge according to claim 236 , wherein the ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A cartridge includes a photosensitive drum and a coupling member operatively connected to the photosensitive drum, with the coupling member including an arm portion and a projection projecting from the arm portion. The arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum. 1235.-. (canceled)236. A cartridge comprising:a casing;a photosensitive drum rotatably supported by the casing;a coupling member operatively connected to the photosensitive drum, the coupling member including an arm portion and a projection projecting from the arm portion;a cleaning blade configured to remove toner from a surface of the photosensitive drum; anda charging roller configured to charge the photosensitive drum;wherein the photosensitive drum is rotatable such that a part of the surface of the photosensitive drum moves from an upstream position where the part of the photosensitive drum is exposed to outside of the casing to a downstream position where the part of surface of the photosensitive drum is adjacent to the charging roller via an intermediate position where the part of the surface of the photosensitive drum is adjacent to the cleaning blade, andwherein the arm portion of the coupling member extends from a point that is upstream in the rotational direction of the photosensitive drum towards a point that is downstream in the rotation direction of the photosensitive drum.237. A cartridge according to claim 236 , wherein the projection projects from the arm portion to an end of the projection such that the end of the projection is closer to a rotational axis of the coupling member than the arm portion is to the rotational axis of the coupling member.238. A cartridge according to claim 236 , wherein the arm portion is movable between a first position and a second position claim 236 , andwherein the projection is closer to a ...

Drum unit, cartridge and coupling member

A drum unit for a cartridge includes a photosensitive drum and a coupling member provided adjacent to an end of the photosensitive drum. The coupling member includes an arm portion, and a projection projected from the arm portion in a direction towards a rotational axis of the coupling member, with a part of the projection inclined relative to the rotational axis of the coupling member. The arm portion extends in a circumferential direction of the coupling member, and, as measured in a direction perpendicular to the rotational axis of the coupling member, a distance between the inclined part of the projection and the rotational axis of the coupling member increases as the distance in the direction of the rotational axis of the coupling member to another end of the photosensitive drum decreases.

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L, and a coupling member operatively connected to the photosensitive drum. The coupling member includes a drum flange provided at an end of the photosensitive drum with a part of the drum flange being positioned inside of the photosensitive drum. The drum unit also includes a connecting part operatively connected to the drum flange, with the connecting part including a cap positioned adjacent to the drum flange, an arm portion extending from the cap in a direction of the axis L, and a projection projecting from the arm portion in a direction perpendicular to the axis L. The arm and the projection are movable relative to the drum flange and the cap. 1235-. (canceled)236. A drum unit for a cartridge , the drum unit comprising:{'b': '1', 'a cylindrical photosensitive drum having an axis L; and'}a coupling member operatively connected to the photosensitive drum, the coupling member including:(i) a drum flange provided at an end of the photosensitive drum, a part of the drum flange being positioned inside of the photosensitive drum, and (ii-i) a cap positioned adjacent to the drum flange,', {'b': '1', '(ii-ii) an arm portion extending from the cap in a direction of the axis L, and'}, {'b': '1', '(ii-iii) a projection projecting from the arm portion in a direction perpendicular to the axis L,'}], '(ii) a connecting part operatively connected to the drum flange, the connecting part includingwherein the arm and the projection are movable relative to the drum flange and the cap.237. A drum unit according to claim 236 , wherein the projection is movable between a first position and a second position claim 236 , and{'b': '1', 'wherein an end of the projection is closer to the axis L when the projection is in the first position than when the projection is in the second position.'}238. A drum unit according to claim 237 , wherein the projection is biased towards the first position.23911. A drum ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L and a coupling member operatively connected to the photosensitive drum. The coupling member includes a first member having a cylindrical portion, a part of the first member being positioned inside of the photosensitive drum and a part of the first member being positioned outside of the photosensitive drum. The coupling member also includes a second member operatively connected to first member, the second member including a plurality of arm portions that are movable relative to the first member, with at least a part of each of the arm portions being positioned inside of the photosensitive drum and inside of the first member. 1235-. (canceled)236. A drum unit for a cartridge , the drum unit comprising:{'b': '1', 'a cylindrical photosensitive drum having an axis L; and'}a coupling member operatively connected to the photosensitive drum, the coupling member including:a first member including a cylindrical portion, a part of the first member being positioned inside of the photosensitive drum and a part of the first member being positioned outside of the photosensitive drum, anda second member operatively connected to first member, the second member including a plurality of arm portions that are movable relative to the first member, with at least a part of each of the arm portions being positioned inside of the photosensitive drum and inside of the first member.237. A drum unit according to claim 236 , wherein the second member includes a plurality of projections claim 236 , with a projection projecting from one of the arm portions.238. A drum unit according to claim 237 , wherein at least a part of each of the projections is positioned inside of the photosensitive drum.23911. A drum unit according to claim 237 , wherein each of the projections projects from an arm portion such that an end of each of the projections is closer to the axis L than each of the arm portions is to the axis L ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A drum unit for a cartridge includes a cylindrical photosensitive drum having an axis L and a coupling member operatively connected to the photosensitive drum. The coupling member includes a drum flange provided at an end of the photosensitive drum, with a part of the drum flange being positioned inside of the photosensitive drum, and a connecting part operatively connected to the drum flange. The connecting part includes a cap positioned adjacent to the drum flange, an arm portion extending from the cap in a direction of the axis L, and a projection projecting from the arm portion in a direction perpendicular to the axis L, with the projection being movable between a first position and a second position, and with an end of the projection being closer to the axis L in the first position than in the second position. 1235-. (canceled)236. A drum unit for a cartridge , the drum unit comprising:{'b': '1', 'a cylindrical photosensitive drum having an axis L; and'}a coupling member operatively connected to the photosensitive drum, the coupling member including:(i) a drum flange provided at an end of the photosensitive drum, a part of the drum flange being positioned inside of the photosensitive drum, and (ii-i) a cap positioned adjacent to the drum flange,', {'b': '1', '(ii-ii) an arm portion extending from the cap in a direction of the axis L, and'}, {'b': 1', '1, '(ii-iii) a projection projecting from the arm portion in a direction perpendicular to the axis L, the projection being movable between a first position and a second position, with an end of the projection being closer to the axis L in the first position than in the second position.'}], '(ii) a connecting part operatively connected to the drum flange, the connecting part including237. A drum unit according to claim 236 , wherein the projection is biased towards the first position.2381. A drum unit according to claim 236 , wherein the coupling member includes a plurality of arm portions projecting from the cap ...

UNIDIRECTIONAL CLUTCH AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS EMPLOYING THE SAME

An unidirectional clutch including: a first rotating member including an accommodation portion; a second rotating member provided on a same axis as the first rotating member and including a latch portion; and a latch member including a latch arm and accommodated in the accommodation portion so as to pivot to a locking position, wherein the latch arm is caught at the latch portion, or to a releasing position, wherein the latch arm is released from the latch portion, according to a rotation direction of the first rotating member, wherein the latch member does not rotate in the accommodation portion, and a location of a pivot center of the latch member changes when pivoting to the locking position or to the releasing position. 1. A unidirectional clutch for an image forming apparatus comprising:a first rotating member comprising an accommodation portion;a second rotating member provided on the first rotating member so that the first rotating member and the second rotating member is in line with a same axis and, the second rotating member comprising a latch portion; anda latch member accommodated in the accommodation portion of the first rotating member, the latch member comprising a latch arm pivotable to a locking position where the latch arm is caught at the latch portion, or to a releasing position where the latch arm is released from the latch portion, according to a rotation direction of the first rotating member,wherein the latch member does not rotate in the accommodation portion with respect to the first rotating member when the latch member is in the locking position or in the releasing position, and a location of a pivot center of the latch member changes when pivoting to the locking position or to the releasing position.2. The unidirectional clutch of claim 1 , wherein claim 1 , when the first rotating member rotates in a first direction claim 1 , the latch member pivots to the locking position so that the second rotating member rotates together with the ...

TRANSMISSION DEVICE FOR A PHOTOSENSITIVE DRUM

A transmission device includes a gear member, an intermediate member removably attached to the gear member and including a guiding groove, and a transmitter including a shaft, the shaft having at least one protrusion extending radially outward from the shaft, and the guiding groove is shaped such that the protrusion is movable along the guiding groove in an axial direction and rotatable relative to the guiding groove. 1. A transmission device comprising:a gear member;an intermediate member removably attached to the gear member and including a guiding groove; anda transmitter including a shaft, the shaft having at least one protrusion extending radially outward from the shaft,wherein the guiding groove is shaped such that the protrusion is moveable along the guiding groove in axial direction and rotatable relative to the guiding groove.2. The transmission device according to claim 1 , wherein the intermediate member includes an introducing groove on a top face of the intermediate member and at least one retention member that forms the guiding groove claim 1 , andthe introducing groove provided on the top face of the intermediate member is sized to allow the protrusion to pass through the introducing groove when the transmitter is assembled to the intermediate member.3. The transmission device according to claim 2 , wherein the guiding groove includes an opening to allow the protrusion to pass through the introducing groove when the transmitter is assembled to the intermediate member.4. The transmission device according to claim 1 , wherein at least one inner wall ledge and at least one receiving member are provided on an inside surface of the gear member claim 1 ,the intermediate member includes at least one protrusion extending radially outward, andthe receiving member of the gear member includes an opening to receive the protrusion of the intermediate member.5. The transmission device according to claim 4 , wherein the opening of the receiving member of the gear ...

DRIVE SHAFT ELECTRICAL CONTACT FOR PRINT CARTRIDGE PHOTORECEPTOR GROUNDING

Disclosed is a xerographic printing apparatus and print cartridge including a deformable electrically conductive ring. According to an exemplary embodiment, a xerographic image rendering print cartridge includes a drive shaft, a photoreceptor drum and a deformable electrically conductive ring operatively associated with electrically connecting an inside surface of the photoreceptor drum to the drive shaft to provide a grounding electrical path. 1. A xerographic image rendering print cartridge comprising:a drive shaft adapted to rotate at a rotational speed, the drive shaft including an electrically conductive outside surface associated with an outside diameter of the drive shaft;a photoreceptor drum including an outside charge retentive surface and an electrically conductive inside surface proximately located at a first longitudinal end of the photoreceptor drum, the electrically conductive inside surface operatively associated with an inside diameter of the photoreceptor drum; anda deformable electrically conductive ring operatively associated with electrically connecting the photoreceptor electrically conductive inside surface to the drive shaft electrically conductive outside surface, the deformable electrically conductive ring including an electrically conductive outside surface associated with an outside diameter of the deformable electrically conductive ring and an electrically conductive inside surface associated with an inside diameter of the deformable electrically conductive ring, the outside diameter of the deformable electrically conductive ring greater than or equal to the inside diameter of the photoreceptor drum inside diameter and the inside diameter of the deformable electrically conductive ring less than or equal to the outside diameter of the drive shaft,wherein the deformable electrically conductive ring is shaped to include two or more deformable electrically conductive outside protruding annular curved surfaces separated by air gaps to provide ...

Drum unit, cartridge, process cartridge and electrophotographic image forming apparatus

To provide a process cartridge, a drum unit capable of receiving a driving force from the main assembly, and an image forming apparatus including the process cartridge. A cartridge is provided with a movable member having a driving force receiving portion. The movable member moves between an advanced position and a retracted position.

Drum unit, cartridge and coupling member

A cartridge includes a rotatable member configured to carry toner on a surface and a coupling member operatively connected to the rotatable member. The coupling member is rotatable about a rotational axis thereof, and the coupling member includes an extended portion that is movable in a direction perpendicular to the rotational axis, and a projection projecting from the extended portion, with the extended portion extending in a direction crossing a projecting direction of the projection. The extended portion extends downstream in a rotational direction of the coupling member toward the projection.

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A drum unit for a cartridge includes a photosensitive drum and a coupling member rotatable about a rotational axis thereof, the coupling member being operatively connected to the photosensitive drum. The coupling member includes a movable extended portion that extends in a first direction, and a projection projecting from the extended portion in a second direction that crosses the first direction, the projection being capable of transmitting a driving force to the photosensitive drum. At least a part of the projection is positioned inside of the photosensitive drum. 1235-. (canceled)236. A drum unit for a cartridge , the drum unit comprising:(i) a photosensitive drum; and (ii-i) a movable extended portion that extends in a first direction; and', '(ii-ii) a projection projecting from the extended portion in a second direction that crosses the first direction, the projection being capable of transmitting a driving force to the photosensitive drum,, '(ii) a coupling member rotatable about a rotational axis thereof, the coupling member operatively connected to the photosensitive drum, the coupling member includingwherein at least a part of the projection is positioned inside of the photosensitive drum.2371. A drum unit according to claim , wherein the projection is positioned adjacent to an end of the extended portion.2381. A drum unit according to claim , wherein an open space is formed in the coupling member between the projection and the rotational axis of the coupling member.239. A drum unit according to claim 236 , wherein the extended portion is movable between a first position and a second position claim 236 ,wherein the projection is positioned closer to the rotational axis of the coupling member when the extended portion is in the first position than when the extended position is in the second position, andwherein the extended portion is biased towards the first position.240. A drum unit according to claim 236 , wherein the extended portion extends from an ...

IMAGE FORMING APPARATUS INCLUDING COUPLING MEMBER SELECTIVELY COUPLED TO PHOTOSENSITIVE DRUM

An image forming apparatus includes a main body, endless belt, photosensitive drums, setting unit, contacting/separating mechanism, transmitting mechanism, and coupling members. The photosensitive drums are disposed in confrontation with the endless belt and are arranged in a first direction. Each photosensitive drum has an axis extending in a second direction perpendicular to the first direction. The setting unit sets the image forming apparatus to a monochrome mode or color mode. The contacting/separating mechanism controls at least one photosensitive drum to contact or separate from the endless in accordance with the set mode. The transmitting mechanism selectively transmits drive power to photosensitive drums. Each coupling member is selectively coupled to the corresponding photosensitive drum and has a coupling axis extending in the second direction. Each coupling member is uncoupled from the corresponding photosensitive drum when the contacting/separating mechanism controls the corresponding photosensitive drum to separate from the endless belt. 1. An image forming apparatus comprising:a main casing;a process frame movable into and out of the main casing in a first direction, the process frame including:a first wall; anda second wall spaced apart from the first wall in a second direction;a first cartridge detachably mountable to the process frame, the first cartridge being positioned between the first wall and second wall in the second direction in a state where the first cartridge is mounted to the process frame, the first cartridge including:a first developing roller rotatable about a first axis extending in the second direction; anda first electrode for supplying power to the first cartridge,wherein the first cartridge is mountable to the process frame in a third direction, andwherein a portion of the first wall aligns with the electrode in the third direction.2. The image forming apparatus according to claim 1 ,wherein the first wall extends in the first ...

IMAGE FORMING APPARATUS

An image forming apparatus includes a cartridge storage portion that is installed in an image forming apparatus main body, and a toner cartridge that is configured so as to be able to be inserted into and removed from the cartridge storage portion. The cartridge storage portion has a storage opening that receives the toner cartridge, and has a gap between an end part of the toner cartridge and the storage opening, through which the end part of the toner cartridge is not able to be held, when the toner cartridge is stored in the cartridge storage portion. 16-. (canceled)7. An image forming apparatus , comprising:a driving unit that is installed in an image forming apparatus main body; anda toner cartridge that is configured so as to be removable from the driving unit, whereinthe driving unit has a locking member that is engaged with the toner cartridge to prevent the toner cartridge from being detached from the driving unit.8. The image forming apparatus according to claim 7 , whereinthe locking member is engaged with the toner cartridge when a toner remaining amount in the toner cartridge is not detected to be zero, and is released from the engagement with the toner cartridge when the toner remaining amount in the toner cartridge is detected to be zero.9. The image forming apparatus according to claim 7 , whereinthe toner cartridge further includes a toner conveyance member or a stirring member that is driven by the driving unit, andthe locking member is released from the engagement with the toner cartridge when abnormality of toner conveyance operation by the toner conveyance member or stirring operation by the stirring member is detected.10. The image forming apparatus according to claim 7 , whereinthe image forming apparatus further includes an operation portion that receives operation for the image forming apparatus, andthe locking member is released from the engagement with the toner cartridge when detachment of the toner cartridge is set at the operation ...

CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving side abutment, and wherein a distance between the rotational axis of the driven coupling member and the abutment of the receiving abutment is not more than a distance between the rotational axis of the driven coupling member and the driving force receiving portion. 1. A cartridge comprising:a rotatable driven coupling member including a driving force receiving portion for receiving a driving force, and a driven side abutment portion to be abutted by the driving side abutment portion, said driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of said coupling member;wherein said driven side abutment portion is inclined so that said driven coupling member is retractable in the predetermined direction by a force received by driven side abutment portion, andwherein a distance between the rotational axis of said driven coupling member and said abutment portion of said receiving abutment portion is not ...

Cartridge detachably mountable to main assembly of electrophotographic image forming apparatus, assembling method for drive transmitting device for photosensitive drum, and electrophotographic image forming apparatus

With a structure in which a coupling member includes a sphere providing a center of inclination (pivoting), a rotational force transmitted member has an opening have a diameter smaller than that of the sphere, and the coupling member is prevented from disengaging from rotational force transmitted member by contact of inner edge of the opening to the sphere, the inner edge of the opening may limit an inclinable (pivotable) angle range of the coupling member. In a state that a pin 88 which is a shaft portion is inserted in a hole 86 b which is a through-hole provided in a coupling member 86 , opposite end portions of the pin 88 are supported by a driving side flange 87 which is a rotational force transmitted member. The coupling member 86 and the driving side flange 87 and the pin 88 are connected in this manner, and the pin 88 contact the inside of the hole 86 b without limiting the inclinable (pivotable) angle range, by which the coupling member 86 is prevented from disengaging from the driving side flange 87

IMAGE FORMING APPARATUS AND CONTROL METHOD THEREFOR

An image forming apparatus includes a housing having an opening, a cover configured to openably close the opening, photosensitive drums, cartridges, a first motor and a controller. Each cartridge has a developing roller, a storage chamber configured to store toner, and an agitator configured to agitate the toner. The first motor is configured to rotate the agitators. The controller rotates the agitators by rotating the first motor when forming an image on a sheet. The controller determines whether a new cartridge is included in the plurality of cartridges in response to the image forming apparatus being turned on or in response to the cover being closed. In a case where a new cartridge is included, the controller stirs toner with the agitators by rotating the first motor. In a case where a new cartridge is not included, the controller does not stir the toner. 1. An image forming apparatus comprising:a housing having an opening;a cover movable between a closed position for closing the opening and an open position for opening the opening;a plurality of photosensitive drums;a plurality of cartridges each having a developing roller, a storage chamber configured to store toner, and an agitator configured to agitate the toner, the plurality of cartridges being configured to be mounted to the housing through the opening;a first motor configured to rotate the agitators; and rotate the agitators by rotating the first motor when forming an image on a sheet; and', execute a determination process of determining whether a new cartridge is included in the plurality of cartridges;', 'execute an initial stirring process of stirring toner with the agitators by rotating the first motor in a case where a new cartridge is included; and', 'not execute the initial stirring process in a case where a new cartridge is not included., 'in response to the image forming apparatus being turned on or in response to the cover being moved from the open position to the closed position], 'a ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A coupling member is provided for a cartridge that includes a cylindrical photosensitive drum that is rotatable about an axis. The coupling member is operatively connected to the photosensitive drum and is capable of receiving a rotational force for rotating the photosensitive drum. 1235-. (canceled)236. A cartridge comprising:a casing;a developing roller rotatably supported by the casing; anda coupling member operatively connected to the developing roller, the coupling member being rotatable about a rotational axis thereof, the coupling member including (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, and (iv) an aligner at least partially positioned inside of the cylindrical portion, the aligner including a surface that faces the rotational axis of the coupling member,wherein a distance between at least one of the first and second projections and the aligner is changeable,wherein, along a line perpendicular to the rotational axis of the coupling member, the first projection is open to the rotational axis of the coupling member, andwherein, along a line perpendicular to the rotational axis of the coupling member, the second projection is open to the rotational axis of the coupling member.237. A cartridge according to claim 236 , wherein claim 236 , as seen in a direction of the rotational axis of the coupling member claim 236 , the first projection and second projection are separated by an angle of about 120 degrees.238. A cartridge according to claim 236 , wherein claim 236 , as seen in a direction of the rotational axis of the coupling member claim 236 , (i) the first projection and the second projection are separated by an angle of about 120 degrees claim 236 , (ii) the first projection and the aligner are separated by an angle of about 120 degrees claim 236 , and (iii) the second projection and the aligner ...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

An object of the present invention is to provide an image developing apparatus and a process cartridge with which an image quality can be improved while reducing a number of parts and reducing an amount of remaining developer. 13-. (canceled)4. A cartridge comprising:(i) a rotatable developing roller;(ii) a rotatable toner supplying roller provided in contact with the developing roller, the toner supplying roller being configured to supply toner to the developing roller;(iii) a toner chamber configured to contain toner;(iv) a developing chamber in which the toner supplying roller is positioned;(v) a rotatable feeding member provided in the toner chamber and configured to feed the toner from the toner chamber to the developing chamber;(vi) a coupling operatively connected to the toner supply roller and configured to receive a driving force for rotating the toner supplying roller, the developing roller, and the feeding member;(vii) a first driving force transmitting portion operatively connected to the toner supply roller and configured to transmit the driving force received by the coupling to the developing roller; and(viii) a second driving force transmitting portion operatively connected to the developing roller and configured to transmit the driving force from the first driving force transmitting portion to the developing roller,wherein the cartridge is configured such that, when the coupling receives the driving force and the cartridge is oriented with the developing roller positioned above the toner chamber, (i) a rotational direction of the developing roller is opposite to a rotational direction of the toner supplying roller, (ii) a part of a surface of the toner supplying roller rotates from a first position at which the part of the surface of the toner supply roller contacts a surface of the developing roller to a second position where the part of the surface of the toner supplying roller moves out of contact with the surface of the developing roller, with ...

CARTRIDGE AND IMAGE FORMING APPARATUS

A cartridge for an image forming apparatus includes: a process unit to be used to form an image; a first member including a first resin material; a second member including a second resin material having higher flame retardant capability than the first resin material; and an electrode member including a contact section configured to be supplied with power from an apparatus main body of the image forming apparatus. The electrode member is configured to electrically connect the apparatus main body to the process unit. The second resin material of the second member has a greater density than the first resin material of the first member. The contact section is located in the vicinity of the first and second members and is closer to the second member than to the first member.

Developing Cartridge Having Electrode

A developing cartridge includes a casing, a rotating member, and an electrode member. The casing may be configured to accommodate therein developer. The rotating member has a rotational shaft extending in an axial direction. The rotating member is configured to rotate about the rotational shaft and carries the developer thereon. The electrode member is configured to be electrically connected to the rotating member. The electrode member covers at least part of the rotational shaft from an orthogonal direction orthogonal to the axial direction and is arranged to confront the casing in the axial direction. The electrode member is configured to move in the orthogonal direction in accordance with a movement in the axial direction. 1. A developer cartridge comprising:a housing configured to accommodate developer therein;a developing roller rotatable about a first axis extending in a first direction, the developing roller including a developing roller shaft extending in the first direction;a supply roller rotatable about a second axis extending in the first direction, the supply roller including a supply roller shaft extending in the first direction;a developing electrode electrically connected to the developing roller shaft;a supply electrode electrically connected to the supply roller shaft;a bearing through which the developing roller shaft and the supply roller shaft are inserted; anda screw configured to fix the developing electrode to the housing,wherein the housing has a first hole through which the screw is inserted,wherein the developing electrode has a second hole through which the screw is inserted, andwherein the bearing has a third hole through which the screw is inserted.2. The developer cartridge according to claim 1 , wherein the housing includes a first wall and a second wall spaced apart from the first wall in the first direction claim 1 , andwherein the developing electrode, the supply electrode, and the bearing are positioned at an outer surface of the ...

Image Forming Apparatus and Process Cartridge

The image forming apparatus includes a drum cartridge having a photosensitive drum and a drum drive input member; a developing cartridge configured to be movably mounted to the drum cartridge, the developing cartridge comprising a developing roller disposed so as to face the photosensitive drum and a developing drive input member; a drum drive transmission member configured to engage with the drum drive input member and configured to transmit drum driving force to the drum drive input member while permitting a positional gap of the drum drive input member within a predetermined range; and a developing drive transmission member configured to engage with the developing drive input member and configured to transmit developing driving force to the developing drive input member while permitting a positional gap of the developing drive input member within a predetermined range. 1. An image forming apparatus comprising: [ a photosensitive drum; and', 'a drum coupling configured to rotate the photosensitive drum; and, 'a drum frame including, a developing roller; and', 'a developing coupling configured to rotate the developing roller,, 'a housing configured to accommodate toner therein, the housing including], 'a process cartridge includingwherein the housing is movable relative to the drum frame between a first position and a second position,wherein a surface of the developing roller is in contact with a surface of the photosensitive drum in a case where the housing is at the first position,wherein the surface of the developing roller is spaced apart from the surface of the photosensitive drum in a case where the housing is at the second position, and 'a first coupling configured to couple to the drum coupling, the first coupling being movable between a third position and a fourth position relative to the drum coupling.', 'wherein the image forming apparatus further comprises2. The image forming apparatus according to claim 1 ,wherein the third position is a position at ...

Systems and Methods for Remanufacturing Imaging Components

A drive gear for a generally cylindrical imaging component. The drive gear includes a body for engaging the generally cylindrical imaging component; a cylindrical shaft attached to the body, the cylindrical shaft having an end surface; and three prongs extending longitudinally outward from the end surface.

DEVELOPER CARTRIDGE PROVIDED WITH GEAR HAVING ENGAGEMENT PORTIONS

A developer cartridge may include: a first gear having a small-diameter gear portion and a large-diameter gear portion; and a second gear including: a first columnar portion centered on a second axis; a second columnar portion having a smaller diameter than the first columnar portion; a first engagement portion extending along a portion of a peripheral surface of the first columnar portion and engageable with the small-diameter gear portion; a second engagement portion extending along a portion of a peripheral surface of the second columnar portion and positioned closer to a housing than the first engagement portion in an axial direction and engageable with the large-diameter gear portion; and a protruding portion protruding in the axial direction and rotatable together with the first engagement portion and the second engagement portion. The second engagement portion may engage the large-diameter gear portion after the first engagement portion engages the small-diameter gear portion. 1. A developing cartridge comprising:a first gear rotatable about a first axis extending in a first direction;a second gear rotatable about a second axis extending in the first direction from a first rotational position to a second rotational position and from the second rotational position to a third rotational position, the second gear being engageable with the first gear; anda protrusion movable accordance with a rotation of the second gear,wherein the protrusion moves at a first speed in a case where the second gear rotates from the first rotational position to the second rotational position,wherein the protrusion moves at a second speed in a case where the second gear rotates from the second rotational position to the third rotational position, andwherein the second speed is different from the first speed.2. The developer cartridge according to claim 1 ,wherein the second gear includes a first engagement portion,wherein the first engagement portion extends along a portion of a ...

CARTRIDGE SUPPORT MEMBER AND IMAGE FORMING APPARATUS HAVING THE SAME

An image forming apparatus includes a main body, a cartridge support member configured to have a process cartridge provided with first electrical contact points attachable thereto, and a holder configured to have second electrical contact points which are electrically contactable to the first electrical contact points. When the cartridge support member is moved from a first position to a second position in the main body, the second electrical contact points are electrically connected to the first electrical contact points while the cartridge support member is at the first position, while the cartridge support member moves between the first position and the second position, and while the cartridge support member is at the second position. The holder electrically disconnects the second electrical contact points from the first electrical contact points when the cartridge support member is moved to a third position outside the main body. 1. An image forming apparatus , comprising:a main body configured to have a door;a cartridge support member configured to have a process cartridge, provided with a plurality of first electrical contact points, attachable to the cartridge support member; anda holder configured to have a plurality of second electrical contact points electrically contactable to the plurality of first electrical contact points,whereinthe cartridge support member is configured to be moved from a first position to a second position in the main body when the door is moved from a closed position to an open position, and to be moved from the second position to the first position when the door is moved from the open position to the closed position,when the process cartridge is attached to the cartridge support member, the holder is configured such that the plurality of second electrical contact points are electrically connected to the plurality of first electrical contact points while the cartridge support member is at the first position, while the cartridge ...

Cartridge, attachment and mounting kit

To further develop a drive transmission method from a main assembly of an apparatus toward a cartridge.The cartridge is detachably mountable to a main assembly of an image forming apparatus including a drive output member configured to output a driving force, and a main assembly side pushing member configured to incline the drive output member by pushing the drive output member. The cartridge includes a photosensitive drum and a cartridge side pushing member. The cartridge side pushing member is configured such that an inclination angle of the drive output member is changed by pushing the main assembly side pushing member.

CARTRIDGE AND IMAGE FORMING APPARATUS

A cartridge includes a drum unit and a development unit. The drum unit includes a photosensitive drum, a frame, a transfer roller, and a cleaning member. The development unit includes a development roller, and a memory. The cleaning member is configured to come into contact with the photosensitive drum at a region between a development nip portion and a transfer nip portion in a circumferential direction of the photosensitive drum and at an end portion of the photosensitive drum in a direction of the rotational axis. The frame has an exposing hole through which the memory is exposed from the frame, and a recessed portion that is adjacent to the exposing hole in the direction of the rotational axis, and stores foreign matters removed from the photosensitive drum by the cleaning member. 1a drum unit including a photosensitive drum configured to bear a toner image, a frame configured to support the photosensitive drum so that the photosensitive drum is rotatable about a rotational axis, a transfer roller configured to come into contact with the photosensitive drum so as to form a transfer nip portion with the photosensitive drum for transferring the toner image on the photosensitive drum onto a recording material while conveying the recording material, and a cleaning member; anda development unit configured to be detachably mounted on the drum unit, the development unit including a development roller configured to come into contact with the photosensitive drum so as to form a development nip portion for supplying a toner to the photosensitive drum, and a non-transitory memory configured to store information.. A cartridge comprising: The present invention relates to a cartridge and an image forming apparatus in which a development unit is detachably mounted on a drum unit.Hitherto, a process cartridge in which a development cartridge including a memory is detachably provided in a photosensitive member cartridge is suggested (refer to JP-A-2016-224221). The ...

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT

A process cartridge for use with a main assembly of an electrophotographic image forming apparatus, the main assembly including a driving shaft, to be driven by a motor, having a rotational force applying portion, wherein the process cartridge is dismountable from the main assembly in a direction substantially perpendicular to an axial direction of the driving shaft, the process cartridge includes i) an electrophotographic photosensitive drum having a photosensitive layer at a peripheral surface thereof, the electrophotographic photosensitive drum being rotatable about an axis thereof; ii) process means actable on the electrophotographic photosensitive drum; iii) a coupling member engageable with the rotational force applying portion to receive a rotational force for rotating the electrophotographic photosensitive drum, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the electrophotographic photosensitive drum to the electrophotographic photosensitive drum and a disengaging angular position in which the coupling member is inclined away from the axis of the electrophotographic photosensitive drum from the rotational force transmitting angular position, wherein when the process cartridge is dismounted from the main assembly of the electrophotographic image forming apparatus in a direction substantially perpendicular to the axis of the electrophotographic photosensitive drum, the coupling member moves from the rotational force transmitting angular position to the disengaging angular position. 1. A process cartridge for use with a main assembly of an electrophotographic image forming apparatus , said main assembly including a driving shaft , to be driven by a motor , having a rotational force applying portion , wherein said process cartridge is dismountable from the main assembly in a direction substantially perpendicular to an axial direction of the driving shaft , said ...

IMAGE FORMING APPARATUS AND DETACHABLE UNIT

An image forming apparatus includes an apparatus main body and a contact terminal, and a detachable unit including a holder for holding a circuit board having an electrode terminal which comes into contact with the contact terminal. A state of the detachable unit is changed to an attached state by inserting it in an insertion direction, and is changed to a detached state by withdrawing the detachable unit in a withdrawal direction. The holder includes a first positioning member for positioning a tip end of the circuit board in the insertion direction when the detachable unit holding the circuit board in the holder is slid in the insertion direction. The first positioning member includes a notch configured so that the contact terminal passes through the notch when the detachable unit not holding the circuit board in the holder in the attached state is slid in the withdrawal direction. 1. An image forming apparatus comprising:an apparatus main body including a guide section and a contact terminal as a spring; anda detachable unit including a holder for holding a circuit board having an electrode terminal which comes into contact with the contact terminal, a state of the detachable unit being changed to an attached state by inserting the detachable unit along the guide section in an insertion. direction, the state of the detachable unit being changed to a detached state by withdrawing the detachable unit along the guide section in a withdrawal direction opposite to the insertion direction; wherein:the holder includes a first positioning member for positioning a tip end of the circuit board in the insertion direction when the detachable unit holding the circuit board in the holder is slid along the guide section to be inserted in the insertion direction; andthe first positioning member includes a notch configured so that the contact terminal passes through the notch when the detachable unit not holding the circuit board in the holder in the attached state is slid in the ...

IMAGE FORMING APPARATUS

An image forming apparatus includes a door; an electric power source substrate for supplying electric power to an object detachably mounted through the door and provided with an electrical contact; an electroconductive member having an apparatus contact connected with the electric power source substrate; an element movable between a contacting position for contacting the apparatus contact and the electrical contact portion with each other and a spacing position for spacing them; a link connecting the door and the element to move the element to the contacting position with door closing and moving the element to the spacing position with door opening; and an operating portion movable with the element moving to the contacting position to connect an electroconductive path between the apparatus contact of the electroconductive member and the electric power source substrate, the operating portion being movable with the element moving to the spacing position to disconnect the path. 1. An image forming apparatus comprising:an opening/closing member provided rotatably relative to a main assembly of said image forming apparatus and movable between an open position for opening an opening provided in said main assembly, and a closing position for closing the opening;an electric power source substrate configured to supply electric power to an object which is detachably mounted to said main assembly through the opening and which is to be supplied with electric power, wherein the object is provided with an electrical contact;an electroconductive member provided with a main assembly side contact portion connected with said electric power source substrate;a movable member movable between a contacting position for contacting said main assembly side contact portion and said electrical contact portion with each other and a spacing position for spacing them from each other;a link mechanism connecting said opening/closing member and said movable member with each other, said link ...

IMAGE FORMING APPARATUS, IMAGE FORMING CARTRIDGE SUPPORTER, AND IMAGE FORMING UNIT

An image forming apparatus has a body frame and a slide frame. The slide frame is configured to be pulled out from the body frame along a sliding direction. A plurality of image forming cartridges is detachably mounted on the slide frame. A plurality of electrode members is mounted on the slide frame and aligned along the sliding direction so as to correspond to the image forming cartridges. A body-side contact portion of each of the electrode members is electrically connected to the body frame. A cartridge-side contact portion of the electrode member is electrically connected to the image forming cartridge. The image forming cartridge is connected to the body via the corresponding electrode member when the slide frame mounting the image forming cartridges is inserted to the body frame. 114-. (canceled)15. A cartridge for use with a slide frame configured to be pulled out from a body frame of an image forming apparatus in a slide direction in a state where the slide frame supports the cartridge , the cartridge is mounted in or dismounted from the slide frame , the cartridge comprising:a first electrode being electrically connected a second electrode of the body frame via a third electrode of the sliding frame.16. The cartridge according to claim 15 ,wherein the cartridge includes a cartridge case for storing toner.17. The cartridge according to claim 16 , further comprising:a developing roller being rotatably supported by the cartridge case.18. The cartridge according to claim 17 ,wherein the first electrode is electrically connected to the developing roller. This application is a continuation of prior U.S. application Ser. No. 16/130,708, filed Sep. 13, 2018, which is a continuation of prior U.S. application Ser. No. 15/643,939, filed Jul. 7, 2017 (now U.S. Pat. No. 10,082,763B2, issued Sep. 25, 2018), which is a continuation of prior U.S. application Ser. No. 15/098,590, filed Apr. 14, 2016 (now U.S. Pat. No. 9,709,949B2, issued Jul. 18, 2017), which is a ...

REPLACEABLE UNIT FOR AN ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE HAVING POSITIONING FEATURES FOR ELECTRICAL CONTACTS

A replaceable unit for an electrophotographic image forming device according to one example embodiment includes an electrical contact positioned on a first side of a housing of the replaceable unit for contacting an electrical contact in the image forming device. A guide on the first side of the housing is positioned closer to a front of the housing than the electrical contact and leads rearward toward the electrical contact. The guide includes an inside surface that faces inward sideways toward a second side of the housing. At least a portion of the inside surface is angled inward sideways from front to rear permitting contact between the inside surface and an electrical connector in the image forming device to draw the electrical connector in the image forming device inward sideways relative to the replaceable unit during insertion of the replaceable unit into the image forming device. 1. A replaceable unit for an electrophotographic image forming device , comprising:a housing having a top, a bottom, a front, and a rear positioned between a first side and a second side of the housing, the housing has a reservoir for holding toner;an electrical contact on the first side of the housing for contacting a corresponding electrical contact in the image forming device when the replaceable unit is installed in the image forming device; anda guide on the first side of the housing positioned in front of the electrical contact of the replaceable unit and leading rearward toward the electrical contact of the replaceable unit, the guide includes an inside surface that faces inward sideways toward an outer side surface of the first side of the housing, the inside surface is spaced outward sideways from the outer side surface of the first side of the housing with a gap between the inside surface and the outer side surface of the first side of the housing, at least a portion of the inside surface is angled inward sideways in a direction from the front to the rear permitting ...

DRUM CARTRIDGE INCLUDING MOVABLE ELECTRICAL CONTACT SURFACE, AND IMAGE-FORMING APPARATUS USING THE SAME

A drum cartridge includes: a photosensitive drum rotatable about an axis extending in a first direction; a first drum frame to which a developing cartridge is attachable; and a second drum frame having an outer surface; and a memory having an electrical contact surface. The first drum frame is at one end portion of the drum cartridge in a second direction and the second drum frame is at another end portion of the drum cartridge in the second direction. The electrical contact surface is positioned at the outer surface of the second drum frame and is movable in a predetermined direction relative to the second drum frame. 1. A drum cartridge comprising:a photosensitive drum rotatable about an axis extending in a first direction;a first drum frame to which a developing cartridge is attachable; anda second drum frame having an outer surface, the first drum frame being at one end portion of the drum cartridge in a second direction and the second drum frame being at another end portion of the drum cartridge in the second direction; anda memory having an electrical contact surface, the electrical contact surface being positioned at the outer surface and movable in a predetermined direction relative to the second drum frame.2. The drum cartridge according to claim 1 , wherein the second direction crosses the first direction.3. The drum cartridge according to claim 1 , wherein the predetermined direction is the first direction.4. The drum cartridge according to claim 3 , wherein the memory comprises a plurality of the electrical contact surfaces arrayed with one another in the first direction.5. The drum cartridge according to claim 1 , wherein the electrical contact surface is positioned at one end portion of the outer surface in the first direction.6. The drum cartridge according to claim 5 , further comprising a lock lever configured to fix the developing cartridge to the first drum frame claim 5 , the lock lever being positioned at one end portion of the first drum frame ...

DRUM CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE MOVABLE RELATIVE TO DRUM FRAME

A drum cartridge includes: a drum frame to which a developing cartridge is attachable; a photosensitive drum rotatable about an axis extending in a first direction; a memory having an electrical contact surface; and a resilient member positioned between the electrical contact surface and the drum frame. The resilient member is configured to expand and compress in a second direction crossing the electrical contact surface between a first state and a second state, the resilient member having a shorter length in the second state than in the first state. A distance between the drum frame and the electrical contact surface in the second direction when the resilient member is in the second state is smaller than a distance between the drum frame and the electrical contact surface in the second direction when the resilient member is in the first state. 1. A drum cartridge comprising:a drum frame to which a developing cartridge is attachable;a photosensitive drum rotatable about an axis extending in a first direction;a memory having an electrical contact surface; anda resilient member positioned between the electrical contact surface and the drum frame, the resilient member being configured to expand and compress in a second direction crossing the electrical contact surface between a first state and a second state, the resilient member having a shorter length in the second state than in the first state,wherein a distance between the drum frame and the electrical contact surface in the second direction when the resilient member is in the second state is smaller than a distance between the drum frame and the electrical contact surface in the second direction when the resilient member is in the first state.2. The drum cartridge according to claim 1 , wherein the memory is configured to store a number of times of replacement of the developing cartridge with respect to the drum frame.3. The drum cartridge according to claim 1 , wherein the developing cartridge has no memory claim ...

Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus

To accomplish engagement between a coupling member and a drive transmission member of main assembly.A drum unit includes a photosensitive drum and a coupling member which is provided adjacent to an end portion of the photosensitive drum and which is connected with the photosensitive drum so as to be capable of drive transmission. the coupling member is inclinable relative to a rotational axis of the photosensitive drum, and an inclination angle relative to photosensitive drum is reduced with rotational driving operation.

Method for removing and attaching first holder member relative to second holder member supported by housing in cartridge

Provided is a method for removing a first holder member from a second holder member in a cartridge. The cartridge includes: a housing; the first holder member holding an electrical contact surface; and the second holder member supported by the housing. The first holder member includes a pawl, and the second holder member includes a corner part engageable with the pawl of the first holder member. The electrical contact surface is held at one end surface of the first holder member in a first direction crossing the electrical contact surface. The method includes: disengaging the pawl from the corner part; and separating the housing and the second holder member from the first holder member in the first direction away from the one end surface of the first holder member.

Toner container, image forming apparatus

A toner container according to an aspect of the present disclosure is configured to be removably attached to a container attaching portion of an image forming apparatus. The toner container includes a substrate on which a storage portion is mounted. The substrate is attached on a surface of a body of the toner container, and a compatible key is formed integrally on the substrate, the compatible key being configured to allow the toner container to be selectively attached to the container attaching portion.

CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member. 1124-. (canceled)125. A process cartridge comprising:a photosensitive drum;a developing roller capable of contacting to and spacing from the photosensitive drum;an inputting member configured to receive a driving force from outside of the process cartridge for rotating the developing roller; and (a) moving, in response to the developing roller spacing from the photosensitive drum, the inputting member outwardly relative to the process cartridge, and', '(b) moving, in response to the developing roller approaching to the photosensitive drum, the inputting member inwardly relative to the process cartridge., 'a controlling mechanism configured to control movement of the inputting member, the controlling mechanism being capable of126. A process cartridge according to claim 125 , wherein the controlling mechanism includes an elastic portion for applying an elastic force to the inputting member.127. A process cartridge according to claim 126 , wherein the controlling mechanism includes a movable ...

Photosensitive Member Cartridge

A photosensitive member cartridge includes first and second side walls which rotatably support end portions of the photosensitive member in an axial direction of the photosensitive member, a rotating body disposed between the first side wall and the second side wall to face the photosensitive member, and a cartridge electrode which extends in the axial direction and disposed on the first side wall to be movable in the axial direction, and contacts the rotating body to supply electric power to the rotating body. The cartridge electrode includes a contact portion which contacts an end surface of the rotating body in the axial direction. The first side wall includes an abutting portion which abuts on the end surface of the rotating body. The cartridge electrode is configured such that the first contact portion is movable further than the abutting portion in the axial direction.

Image Forming Apparatus Including Coupling Member Selectively Coupled to Photosensitive Drum

An image forming apparatus includes a main body, endless belt, photosensitive drums, setting unit, contacting/separating mechanism, transmitting mechanism, and coupling members. The photosensitive drums are disposed in confrontation with the endless belt and are arranged in a first direction. Each photosensitive drum has an axis extending in a second direction perpendicular to the first direction. The setting unit sets the image forming apparatus to a monochrome mode or color mode. The contacting/separating mechanism controls at least one photosensitive drum to contact or separate from the endless in accordance with the set mode. The transmitting mechanism selectively transmits drive power to photosensitive drums. Each coupling member is selectively coupled to the corresponding photosensitive drum and has a coupling axis extending in the second direction. Each coupling member is uncoupled from the corresponding photosensitive drum when the contacting/separating mechanism controls the corresponding photosensitive drum to separate from the endless belt.

CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

A process cartridge detachably mountable to an electrophotographic image forming apparatus including a main assembly side drive transmission member and a main assembly side urging member, the cartridge including a rotatable photosensitive drum; a rotatable developing roller for developing a latent image formed on the drum, the developing roller contactable to and spaceable from the drum; an urging force receiving portion for receiving an urging force from the urging member to space the roller from the drum; a cartridge side drive transmission portion capable of coupling with the main assembly side drive transmission member to receive a rotational force for rotating the roller; a releasing member capable of urging the main assembly side drive transmission member to decouple the cartridge side drive transmission member from the main assembly side drive transmission member by the urging force receiving portion receiving the urging force from the main assembly side urging member. 169-. (canceled)70. A process cartridge for electrophotographic image formation , the process cartridge comprising:(i) a rotatable photosensitive member;(ii) a rotatable developing roller configured to develop a latent image formed on the photosensitive member, the developing roller being capable of contacting to and spacing from the photosensitive member;(iii) an urging force receiving portion configured to receive an urging force for spacing the developing roller from the photosensitive member;(iv) a rotational force receiving portion configured to receive a rotational force for rotating the developing roller from outside of the process cartridge; and(v) a movable member movable relative to rotational force receiving portion at least in a longitudinal direction of the developing roller, the movable member being movable outwardly in the longitudinal direction by the urging force receiving portion receiving the urging force.71. A process cartridge according to claim 70 , wherein the movable ...

DRIVE TRANSMISSION DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE DRIVE TRANSMISSION DEVICE

A drive transmission device, which is included in an image forming apparatus, includes an output body, an input body, and an intermediate body. The output body has a drive output portion. The input body has a drive input portion. The intermediate body is supported by a support side body that is one of the output body and the input body. The intermediate body includes a relay portion to receive a driving force applied by the drive output portion and to transmit the driving force to the drive input portion, and a retaining portion to prevent the intermediate body from falling from the support side body. A distance from a center of rotation of the intermediate body to a leading end of the retaining portion is greater than or equal to a distance from the center of rotation of the intermediate body to a leading end of the relay portion. 1. A drive transmission device comprising:an output body disposed on a side of a drive source and having a drive output portion;an input body disposed on a side of a rotary body and having a drive input portion; and a relay portion disposed on an inner circumferential surface of the intermediate body, the relay portion configured to receive a driving force applied by the drive output portion of the output body and to transmit the driving force to the drive input portion of the input body; and', 'a retaining portion disposed facing a drive transmission portion of the support side body in an axial direction of the intermediate body, the retaining portion configured to prevent the intermediate body from falling from the support side body,, 'an intermediate body having a cylindrical shape and supported by a support side body being one of the output body and the input body the intermediate body includinga distance from a center of rotation of the intermediate body to a leading end of the retaining portion being greater than or equal to a distance from the center of rotation of the intermediate body to a leading end of the relay portion.2. The ...

DRIVING-FORCE-TRANSMITTING MECHANISM AND IMAGE FORMING APPARATUS

A driving-force-transmitting mechanism includes a driving-force-transmitting component that transmits a driving force from an apparatus body to an attaching object, the attaching object being attachable to and detachable from the apparatus body; and plural operating components that enables or disables the transmission of the driving force from the apparatus body to the attaching object when the attaching object is attached to or detached from the apparatus body, the operating components operating sequentially with delays in such a manner as to move the driving-force-transmitting component in a direction intersecting attaching and detaching directions in which the attaching object is attached to and detached from the apparatus body. 1. A driving-force-transmitting mechanism comprising:a driving-force-transmitting component that transmits a driving force from an apparatus body to an attaching object, the attaching object being attachable to and detachable from the apparatus body; anda plurality of operating components that enables or disables the transmission of the driving force from the apparatus body to the attaching object when the attaching object is attached to or detached from the apparatus body, the operating components operating sequentially with delays in such a manner as to move the driving-force-transmitting component in a direction intersecting attaching and detaching directions in which the attaching object is attached to and detached from the apparatus body, wherein each of the plurality of operating components is configured to move in parallel with the attaching and detaching directions.2. The driving-force-transmitting mechanism according to claim 1 , a first operating component that is moved before the detaching of the attaching object, the first operating component disabling the transmission of the driving force by the driving-force-transmitting component from the apparatus body to the attaching object when the first operating component is moved in ...

Cartridge and bearing member

On a projection plane orthogonal to an axial line of a developing agent bearing member, forming an imaginary region surrounded by a plurality of straight lines and edges of electric contacts, while satisfying first, second, and third conditions, disposes the entirety of a positioning region inside an imaginary region. The first condition is that each of the ends of the plurality of straight lines is situated at an edge of the electric contacts or at the center of the developing agent bearing member. The second condition is that the center of the developing agent bearing member is situated at an intersection of the plurality of straight lines, or upon one of the straight lines. The third condition is that each of the straight lines is stipulated so that the area of the imaginary region is maximal, within the constrictions of the first and second conditions.

PROCESSING CARTRIDGE AND DRIVING ASSEMBLY THEREOF

A driving assembly is provided for a processing cartridge capable of being detachably installed in an electronic imaging device. The driving assembly includes a power receiving unit and a power transfer unit. The power receiving unit is configured for receiving a rotational driving force from a driving mechanism of the electronic imaging device; and the power transfer unit is coupled to the power receiving unit for receiving the rotational driving force from the power receiving unit. The power receiving unit remains constantly inclined with respect to a rotation axis of the power transfer unit, and has an initial position and a displaced position; the power receiving unit moves from the initial position to the displaced position when an external force is applied; and the receiving unit returns to the initial position from the displaced position when the external force is withdrawn. 1. A driving assembly of a processing cartridge capable of being detachably installed in an electronic imaging device , comprising:a power receiving unit for receiving a rotational driving force from a driving mechanism of the electronic imaging device; anda power transfer unit coupled to the power receiving unit for receiving the rotational driving force from the power receiving unit,wherein:the power receiving unit remains constantly inclined with respect to a rotation axis of the power transfer unit, and has an initial position and a displaced position;the power receiving unit moves from the initial position to the displaced position when an external force is applied; andthe receiving unit returns to the initial position from the displaced position when the external force is withdrawn.2. The driving assembly according to claim 1 , wherein:an inclination angle between the power receiving unit and the rotation axis of the power transfer unit remains the same when the power receiving unit is in the initial position and in the displaced position.3. The driving assembly according to claim 2 ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A cartridge includes a casing and a photosensitive drum rotatably supported by the casing. A coupling member is operatively connected to the photosensitive drum, with the coupling member being rotatable about a rotational axis thereof. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, and (iv) an aligner at least partially positioned inside of the cylindrical portion, the aligner including a surface that faces the rotational axis. A distance between at least one of the first and second projections and the aligner is changeable. 1235.-. (canceled)236. A cartridge comprising:a casing;a photosensitive drum rotatably supported by the casing; anda coupling member operatively connected to the photosensitive drum, the coupling member being rotatable about a rotational axis thereof, the coupling member including (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, and (iv) an aligner at least partially positioned inside of the cylindrical portion, the aligner including a surface that faces the rotational axis,wherein a distance between at least one of the first and second projections and the aligner is changeable.237. A cartridge according to claim 236 , wherein claim 236 , as seen in a direction of the rotational axis of the coupling member claim 236 , the first projection and second projection are separated by an angle of about 120 degrees.238. A cartridge according to claim 236 , wherein claim 236 , as seen in a direction of the rotational axis of the coupling member claim 236 , (i) the first projection and the second projection are separated by an angle of about 120 degrees claim 236 , (ii) the first projection and the aligner are ...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

A cartridge includes a casing and a photosensitive drum rotatably supported by the casing, with the photosensitive drum having a first end and a second end. A coupling member is provided adjacent to the first end of the photosensitive drum, with the coupling member being operatively connected to the photosensitive drum. The coupling member includes (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, (iv) an elastically movable projection at least partially positioned inside of the cylindrical portion, and (v) a wall extending in a direction perpendicular to the rotational axis and positioned between the second end of the photosensitive drum and the first and second projections. 1235.-. (canceled)236. A cartridge comprising:a casing;a photosensitive drum rotatably supported by the casing, the photosensitive drum having a first end and a second end; anda coupling member provided adjacent to the first end of the photosensitive drum, the coupling member being operatively connected to the photosensitive drum, the coupling member being rotatable about a rotational axis thereof, and the coupling member including (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, (iv) an elastically movable projection at least partially positioned inside of the cylindrical portion, and (v) a wall extending in a direction perpendicular to the rotational axis and positioned between the second end of the photosensitive drum and the first and second projections.237. A cartridge according to claim 236 , wherein the first projection claim 236 , second projection claim 236 , and the movable projection are open to the rotational axis of the coupling member.238. A cartridge according to claim ...

POWER RECEIVING UNIT, ROTATING COMPONENT, PROCESS CARTRIDGE, AND ASSEMBLY AND DISASSEMBLY METHODS THEREOF

Power receiving unit, rotating component, process cartridge, and assembly and disassembly methods thereof are provided. The process cartridge is detachably mounted in an image formation apparatus configured with a swingable power output unit, an outer circumference of the power output unit contains a recessed portion, and the power receiving unit is engaged with the power output unit to receive a driving force. The power receiving unit comprises a wheel hub, a power receiving part, and a bias part. The wheel hub is disposed on an end of a rotating component in the process cartridge. The power receiving part includes a fixing protrusion and a notch that are oppositely disposed, the fixing protrusion is inserted into the recessed portion, and the notch provides a swinging space for the power output unit. The bias part provides a bias force toward the fixing protrusion for the power output unit. 1. A power receiving unit of a process cartridge , wherein the process cartridge is detachably mounted in an image formation apparatus configured with a power output unit that is swingable , an outer circumference of the power output unit contains a recessed portion , and the power receiving unit is engaged with the power output unit to receive a driving force , the power receiving unit comprising:a wheel hub, wherein the wheel hub is disposed on an end of a rotating component in the process cartridge to transmit the driving force to the rotating component;a power receiving part mounted inside the wheel hub, wherein the power receiving part includes a fixing protrusion and a notch that are oppositely disposed, the fixing protrusion is inserted into the recessed portion, and the notch provides a swinging space for the power output unit; anda bias part, wherein the bias part provides a bias force toward the fixing protrusion for the power output unit.2. The power receiving unit according to claim 1 , wherein:the bias part is disposed on a side where the notch is located.3. The ...