Portable cleanroom printing cabinet

A portable printing cabinet having a housing with a substantially enclosed interior and an opening formed in a side surface thereof, a printing device located within the interior of said housing, and a paper tray positioned outside of the housing and in communication with the opening of the housing is provided.

SHEET STACKERS

Aufrollvorrichtung für bahnförmiges Material.

Eine Vorrichtung zum Aufrollen eines bahnförmigen Materials (20) umfasst einen Wickelkern (16), auf welchen das bahnförmige Material (20) aufwickelbar ist, sowie ein, zumindest teilweise um den Wickelkern (16) aufwickelbares Zugübertragungsmittel (30) mit einem ersten Ende und einem, dem ersten Ende gegenüberliegenden zweiten Ende. Das Zugübertragungsmittel (30) ist über das zweite Ende mit dem Wickelkern (16) verbunden und über das erste Ende mit dem bahnförmigen Material (20) verbindbar. In einem Verfahren zum Betreiben einer Druckvorrichtung wird das Zugübertragungsmittel (30) über das erste Ende mit dem bahnförmigen Material (20) verbunden.

Paper feeder and silk-screen printing equipment

Automatic document feeder

Paper feeder for Middle speed printing

MULTI-SHEET FEED PREVENTING DEVICE

The present invention relates to a multi-sheet feed preventing device, and has the highly favorable effects in that: a plurality of sheets of paper can be more easily fed one by one, a user can carry and store the multi-sheet feed preventing device in a convenient-to-carry state because of the simple structure and small volume of the device, and the device is compatible with various types of printers. The multi-sheet feed preventing device of the present invention is characterized by including: a plate which allows a plurality of sheets of paper to be seated on an upper part thereof; a multi-sheet feed preventing roller seated on the plurality of sheets of paper in a state in which the plurality of sheets of paper seated on the upper part of the plate are compressed, and feeding the plurality of sheets of paper one by one while rotating; and a compression plate part compressing the multi-sheet feed preventing roller onto the plurality of sheets of paper through elastic force, the compression ...

탄성체 롤러

... 롤러 샤프트와 탄성 부재를 가지는 탄성체 롤러. 탄성 부재는, 내층 측 탄성 부재와 피복층을 가진다. 내층 측 탄성 부재는 JIS K 6253 규격에 규정하는 듀로미터 타입 A에 의한 고무 경도가 30~80도이며, 내층 측 탄성 부재는 JIS K 6252 규격에 규정하는 슬릿 없는 앵글형 시험편을 사용하는 인열 강도가 25N/mm 이상이며, 피복층은 실리콘 수지로부터 구성되며, 또한 10~100㎛의 두께를 가지고, 실리콘 수지는 SRIS 0101 규격에 규정하는 스프링식 아스카 C형에 의한 경도가 20도 이하이며, 내층 측 탄성 부재에는 그 원주 방향으로 따라 복수개의 내층 홈이 형성되고, 내층 홈의 폭은 25~1300㎛이며, 내층 홈의 깊이는 25~500㎛이며, 내층 홈은 단면 V자 형상이며, 또한 50~120도의 홈 각도를 가진다.

기재 반송 장치, 인쇄 장치, 도공 장치 및 기재 롤 지름 취득 방법

... (과제) 롤에 권회된 기재의 지름을 정확하게 구하는 것을 가능하게 한다. (해결 수단) 지름 센서 (77) 에 의해, 권출 롤 (71) 에 권회된 인쇄 매체 (M) 의 지름을 측정함으로써, 반송 거리 (d) 에 따른 측정 권경값 (Ds1(d)) 이 측정된다. 측정 권경값 (Ds1(d)) 을 로우 패스 필터에 의해 평활화하여, 평활 권경값 (Ds_avg1(d)) 이 추출된다. 인쇄 매체 (M) 의 초기 지름값 (Do1), 두께의 값 (Tm) 및 반송 거리 (d) 에 기초하여, 권출 롤 (71) 에 권회된 인쇄 매체 (M) 의 지름의 값을 산출함으로써, 산출 권경값 (Dc1(d)) 이 산출된다. 로우 패스 필터에 의한 지연을 보상하면서 산출 권경값 (Dc1(d)) 과 평활 권경값 (Ds_avg1(d)) 의 차분 (Ddiff1(d)) 을 산출하는 연산을 실행함으로써, 차분 (Ddiff1(d)) 이 산출된다. 그리고, 산출 권경값 (Dc1(d)) 이 차분 (Ddiff1(d)) 에 의해 보정된다.

SHEET DISCHARGE TRAY AND IMAGE FORMING APPARATUS

A discharge tray has a frame, a first tray, a second tray, and an angle switching member. The first tray has a sheet-discharge-direction downstream side inclined upward. The second tray is movable, along a pair of wall portions on the frame, to a first position where at least part of the second tray overlaps the first tray, a second position to which the second tray extends toward the sheet-discharge-direction downstream side, and a third position to the sheet-discharge-direction downstream side of the second position where the second tray is rotatable. As the second tray moves, the angle switching member moves. At the third position, the angle switching member rotates through a predetermined angle and is held by the wall portions. The angle switching member supports the second tray at a second inclination angle smaller than a first inclination angle when the second tray is at the second position.

Moving media in reverse duplex direction along media duplex path

A method includes guiding the media n a forward simplex direction by a simplex media path of a media transport assembly of the printing apparatus to position a respective side of the media across from a toner applicator to receive toner thereon and a fuser to fuse the toner thereon. The method also includes guiding the media in a forward duplex direction to the simplex media path by the duplex media path of the media transport assembly so that another side of the media is positioned towards the toner applicator to receive the toner thereon. The method also includes selectively moving the media in a reverse duplex direction opposite from the forward duplex direction to direct the media along the duplex media path to an output area outside of the media transport assembly by the control module in response to a media flushing event.

SHEET TRANSPORT DEVICE AND IMAGE FORMING APPARATUS

A sheet transport device includes a sheet transport path along which a sheet is transported in one direction, plural abutting portions on which a leading end of the sheet transported along the sheet transport path abuts, the plural abutting portions being arranged in a direction intersecting the one direction, and a moving unit that moves the plural abutting portions and/or moves the sheet in the direction intersecting the one direction so that a preceding corner portion of two corner portions located at the leading end of the transported sheet abuts on any of the plural abutting portions.

Stacking apparatus and feeding apparatus

A first notch portion to which a first limiting member is movable and a second notch portion to which a second limiting member is movable are formed in a stacking surface of a stacking unit, and the first and second notch portions are arranged such that a minimum distance between the first notch portion and a center of the stacking unit in the widthwise direction is smaller than a minimum distance between the second notch portion and the center of the stacking unit in the widthwise direction.

PRINTER VACUUM CONVEYOR WITH ADJUSTABLE ACTIVE AREA

A printing system includes a driving belt configured to drive media through the printing system relative to one or more print heads and a vacuum conveyor system. The vacuum conveyor system includes a vacuum chamber cover having a first surface and a second surface opposite the first surface, as well as a plurality of openings through the cover from the first surface to the second surface. A number of seals are disposed to match the location of openings. Each seal extends along the length of the vacuum chamber cover and is drivable to open or close a region with openings. A vacuum chamber below the second surface of the vacuum chamber cover is configured to apply a vacuum to the media through one or more of the openings that are open. The applied vacuum constrains the media on the driving belt by flattening it against the driving belt. 1. A printing system , comprising:a driving belt configured to drive media through the printing system relative to one or more print heads; and a vacuum chamber cover having a first surface and a second surface opposite the first surface, the vacuum chamber cover including a plurality of openings through the vacuum chamber cover from the first surface to the second surface;', 'a seal disposed within and extending along the length of the vacuum chamber cover, the seal drivable by an actuator to open or close a region with openings; and', 'a vacuum chamber below the second surface of the vacuum chamber cover and configured to apply vacuum to the media through one or more open openings to constrain the media on the driving belt by flattening the media against the driving belt., 'a vacuum conveyor system, including2. The printing system of claim 1 , wherein the driving belt includes one or more apertures aligned with each of the plurality of openings.3. The printing system of claim 1 , further comprising a plurality of seals claim 1 , wherein each seal of the plurality of seals corresponds to one of the openings and is drivable by an ...

Medium transport apparatus, image reading apparatus, and transport control method

A medium transport apparatus includes a feeding section configured to nip a medium and feed the medium in a transport direction, a sensor disposed to face a side of the medium being transported in the transport direction, the sensor being configured to detect motion of the medium, and a control unit configured to stop the transport of the medium based on a detection value received from the sensor, in which during a period including a time at which a leading edge of the medium is nipped by the feeding section, the control unit continues transporting the medium irrespective of the detection value from the sensor.

PULL-OUT LOCK DEVICE FOR SHEET CONTAINER AND IMAGE-FORMING APPARATUS INCLUDING THE SAME

In a lock member of a pull-out lock device, while two adjacent sheet containers are both located at an accommodated position in an image-forming apparatus main body, a contact member is in contact with one of the sheet containers and thus the lock member rotates around a rotation axis, and a lock moves to an unlock position to allow the other sheet container to move in a pull-out direction, and while the other sheet container is located at the accommodated position and the one of the sheet containers is pulled out from the accommodated position in the pull-out direction and thus the contact between the one of the sheet containers and the contact member is removed, the lock member rotates around the rotation axis and the lock moves to a lock position to prohibit the other sheet container from moving in the pull-out direction.

MECHANISM AND METHOD FOR DETECTING TOP SURFACE POSITION OF PILED PAPER SHEET

PROBLEM TO BE SOLVED: To lower a collecting table while detecting position of the top surface of the piled medium by providing an arm fitted onto a first flat plate freely to be turned with a first end and a second end, which can remove at the time of turning and which contacts with the piled medium, and a first trigger part for operating a height sensor. SOLUTION: A first end of an arm 14 is supported freely to be rotated around a rod 17, and has a finger 19 as a second end, which contacts with the top surface of the paper sheets 11. Position of the arm 14 is gradually changed while being rotated in a direction opposite to an arrow R per each one rotation of each hub unit by the paper sheets 11, of which height is raised while being piled per each one rotation of the hub unit. When the piled paper sheets 11 achieves the predetermined height and a trigger part 32 is displaced from an optical path of the beam of a paper sheets height sensor 30, the paper sheets height sensor 30 is operated ...

СПОСОБ ОБРАБОТКИ РУЛОНА МАТЕРИАЛА И СИСТЕМА ОБРАБОТКИ РУЛОННОГО МАТЕРИАЛА

Использование: в полиграфии. Сущность изобретения: предложен способ и система обработки рулонного материала, в которых осуществляют печать на рулонном материале посредством устройства для непрерывной печати, транспортируют отпечатанный рулон к средству для разрезания рулона с помощью средства для непрерывной транспортировки отпечатанного рулонного материала, разрезают рулон на множество отдельных листов во временной взаимосвязи с печатанием с помощью средства для разрезания рулона, фальцуют каждый лист с помощью фальцовочного средства, причем фальцовка листов осуществляется во временной взаимосвязи с поступлением листа на фальцовочное средство и независимо от осуществления печатания на каждом рулоне материала. 2 с. и 10 з.п. ф-лы, 5 ил.

РУЛОННОЕ ПЕЧАТНОЕ УСТРОЙСТВО

Сущность изобретения: печатное устройство имеет ряд патронов 1, 2, 3 для печатания рулонного материала 8, например бумаги, проходящего через ряд, и один или несколько блоков 10, 11, содержащих печатную среду. Патроны 1, 2, 3 каждый способен переносить печатную среду из блока или блоков 10, 11 на рулонный материал 8. Блок или блоки 10, 11 относительно патронов 1, 2, 3 ряда могут перемещаться, позволяя блоку или блокам 10, 12 взаимодействовать последовательно по крайней мере с двумя патронами 1, 2, 3. Таким образом можно заменять печать с одного патрона 1, 2, 3 на другой, что позволяет изменять содержание того, что печатается, практически без остановки движения рулонного материала 8. Патроны 1, 2, 3 могут иметь печатные цилиндры 4, 5, 6, 7 различных размеров. 9 з.п. ф-лы, 7 ил.

Stacking device for use in sheet material processing apparatus i.e. printing machine, has supporting element arranged in corner area of stacking surface at distance to another stacking surface opposite to stacks

The device (1) has a stacking surface (3) with stoppers (4) arranged transversely at two abutting sides (5) of the stacking surface for positioning of sheet materials (2) that is conveyed to the stacking surface. A supporting element (6) is arranged in a corner area (7) of the stacking surface at a distance to another stacking surface opposite to stacks. The supporting element is changed in a position in relation to the stacking surface automatically. A corner impact element (8) partially extends over a height of the stack. Independent claims are also included for the following: (1) an apparatus for processing sheet material (2) a method for stacking sheet material in a stacking device.

Vorrichtung zum Transport mit umlaufendem Saugband

Die vorliegende Erfindung betrifft eine Vorrichtung zum Transport von bogenförmigen Bedruckstoffen mit umlaufendem Saugband und darunter liegendem Saugkasten. Die Erfindung zeichnet sich dadurch aus, dass zumindest in einem Teil des Saugkastens zusätzliche, schaltbare Ansaugöffnungen vorhanden sind, mittels welcher das Saugband selbst angesaugt werden kann.

CHANGING PRINT FORMAT IN WEB-FED PRESSES.

A web-fed printing press has a plurality of printing-couple cartridges through which the web passes seriatim, at least one of the cartridges having printing cylinders of a different size to at least one other cartridge, and the cartridges being selectively trippable into or out of printing engagement with the web passing therethrough. It is stated that a rapid change of printing format can be acheived thereby by changing the selection of which cartridge is to be in printing engagement with the web. Out of use cartridges may be exchanged while the press continues to print with the selected cartridge. ...

Processing paper and other webs

A printing apparatus has an array of cartridges (40,41,42) for printing a web (2) of e.g. paper passing through the array, and one or more units (48,49) containing printing medium. The cartridges (40,41,42) each are capable of transferring the printing medium from the unit(s) (48,49) to the web (2). The unit(s) (48,49) and the cartridges (40,41,42) of the array are relatively movable, to allow the unit(s) (48,49) to interact successively with at least two of the cartridges (40,41,42). In this way it is possible to change printing from one cartridge (40,41,42) to another, allowing changes to be made to what is printed, without halting the movement of web (2) significantly. The present invention also proposes that the cartridges (40,41,42) may have printing cylinders (43,44,45,46) of different sizes, and furthermore that a mobile unwind stand may be used to move web material to the printing apparatus, and the web output from the printing apparatus processed by sheet folding techniques.

Sheet conveying apparatus and image forming apparatus

TREATMENT OF PAPER AND OTHER COURSES.

TREATMENT OF PAPER AND OTHER COURSES.

TREATMENT OF PAPER AND OTHER COURSES.

PRINTER HAVING FRONT-END PAPER FEEDING AND FRONT-END PAPER OUTPUTTING AND BEING CAPABLE OF CHANGING PAPER DISCHARGE PATH

A printer having front-end paper feeding and front-end paper outputting and being capable of changing a paper discharge path, said printer comprising a housing (10) and a paper discharge unit (40), the paper discharge unit (40) comprising a first paper discharge mechanism (401) and a paper discharge channel (50) which consists of upper and lower casings (1011, 1012), a front end surface of the housing (10) being a vertical flat surface A, a paper feed port (30) and a paper output port (20) being horizontally arranged on the flat surface A, the paper feed port (30) being located beneath the paper output port (20), the paper discharge channel (50) at the front of the first paper discharge mechanism (401) being provided with a paper conveyance system capable of changing a paper discharge path.

STACKER AND PROCESSING APPARATUS

Portable dust-free room printing cabinet

Sheet binding processing apparatus

SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS

A sheet conveying apparatus comprises: a cover unit opening and closing for a body of the apparatus; and a guide unit including first and second movable guides individually movable for the body of the apparatus. A first conveying path is formed between a first guide part and the first movable guide and a second conveying path is formed between a second guide part and the second movable guide. The guide unit has a linking mechanism including an intermediate member for linking the first and second movable guides. The linking mechanism links movement of the first and second movable guides so that each of the first and second movable guides moves far from the first and second guide parts since the cover unit for the body of the apparatus moves in an opened state. COPYRIGHT KIPO 2018 ...

SHEET CONVEYING DEVICE, IMAGE FORMING APPARATUS, AND SHEET PRESENCE OR ABSENCE DETERMINATION METHOD

According to one embodiment, a sheet conveying device includes a placement tray, a presence detection sensor, and a control unit. The placement tray places a sheet thereon. The presence detection sensor detects the presence or absence of the sheet on the placement tray. The control unit delays a determination timing of the presence or absence of the sheet placed on the placement tray to a predetermined timing when a condition indicating that the remaining sheets placed on the placement tray are only a few is satisfied.

Sheet processing apparatus

According to an embodiment, a sheet processing apparatus includes a first tray, a second tray, a discharge member, and a guide. The guide is provided to the second tray and changes a transport angle of sheets with respect to the second tray when the sheets are sent from a transport path toward the discharge member without passing through the first tray.

Medium transporting device and recording apparatus

A medium transporting device provided in a printer includes a curved path in which a paper sheet after recording is curved and inverted, a plurality of first ribs that extend in a medium transportation direction in a facing area facing a recording head, that are provided at intervals in a width direction intersecting the medium transportation direction, and that form cockling on the paper sheet, a plurality of second ribs that are provided on an outer curved portion of the curved path, and a plurality of third ribs that are provided on an inner curved portion of the curved path. The plurality of second ribs and the plurality of third ribs are disposed at positions in the width direction that correspond to a mountain portion and a valley portion of the cockling of the paper sheet that is formed by the plurality of first ribs.

Sheet discharge device and image forming apparatus including the same

A sheet discharge device of the present invention includes discharge rollers configured to transport a sheet in a predetermined transport direction and to discharge the sheet to a discharge tray, and an upper discharge tray disposed above the discharge tray with a space being interposed therebetween. A bottom face of the upper discharge tray that faces the discharge tray includes a guide rib extending in an oblique direction inclined relative to the transport direction.

СПОСОБ ОБРАБОТКИ РУЛОНА МАТЕРИАЛА И СИСТЕМА ОБРАБОТКИ РУЛОННОГО МАТЕРИАЛА

Предложены способ и система обработки рулонного материала, в которых осуществляют печать на рулонном материале посредством устройства для непрерывной печати, транспортируют отпечатанный рулон к средству для разрезания рулона с помощью средства для непрерывной транспортировки отпечатанного рулонного материала, разрезают рулон на множество отдельных листов во временной взаимосвязи с печатанием с помощью средства для разрезания рулона, фальцуют каждый лист с помощью фальцовочного средства, причем фальцовка листов осуществляется во временной взаимосвязи с поступлением листа на фальцовочное средство и независимо от осуществления печатания на каждом рулоне материала ...

РУЛОННОЕ ПЕЧАТНОЕ УСТРОЙСТВО

Печатное устройство имеет ряд патронов 9 - 12 для печатания рулонного материала 2, например бумаги, проходящего через ряд, и один или несколько блоков 18 и 19, содержащих печатную среду. Патроны 9 - 12 каждый способны переносить печатную среду из блока или блоков 18 и 19 на рулонный материал 2. Блок или блоки 18 и 19 и патроны 9 - 12 ряда могут относительно перемещаться, позволяя блоку или блокам 18, 19 взаимодействовать последовательно по меньшей мере с двумя патронами 9 - 12. Таким образом можно заменять печать с одного патрона на другой, что позволяет изменять содержание того, что печатается, без остановки практически движения рулонного материала 2. патроны 9 - 12 могут иметь печатные цилиндры 13 - 16 различных размеров.

Bilderzeugungsgerät

Vorrichtung zum Transport von Bedruckstoff

Eine Vorrichtung zum Transport von Bedruckstoff (3) in Form von Bogen oder einer Bahn umfasst ein Förderband (4), auf dem der Bedruckstoff (3) beim Transport liegt, und ein erstes Niederhalteband (1), das den Bedruckstoff (3) gegen das Förderband (4) drückt, Es ist ein zweites Niederhalteband (2) vorhanden. Die beiden Niederhaltebänder (1, 2) umschlingen das Förderband (4). Jedes Niederhalteband (1, 2) weist eine geringere Breite (BN) als das Förderband (4) auf. Jedes Niederhalteband (1, 2) drückt einen anderen Rand (5) des Bedruckstoffs (3) an das Förderband (4). Jedes Niederhalteband (1, 2) läuft entlang einer endlosen Umlaufbahn um, innerhalb welcher eine endlose Umlaufbahn des Förderbands (4) liegt.

Verfahren und Anlage zur Herstellung von stückigen Produkten in mehreren Bearbeitungsschritten

Die Erfindung betrifft ein Verfahren und eine Anlage zur Herstellung von stückigen Produkten, insbesondere Verpackungs- und/oder Druckerzeugnissen, mittels einer Anlage in mehreren Bearbeitungsschritten, wobei in einem übergeordneten Planungs-und/oder Steuersystem über eine Bedienerschnittstelle Aufträge zur Herstellung von Verpackungs- und/oder Druckerzeugnissen beschrieben werden und/oder eine Ablauf- und Ressourcenplanung vorgenommen wird, und Angaben aus der Auftragsbeschreibung und/oder Angaben aus der Ablauf- und Ressourcenplanung in einer dem Planungs- und/oder Steuersystem zugeordneten oder mit diesem verbundenen Speicherstruktur als strukturierte Daten bereitstellt werden, zu bearbeitende Materialeinheiten durch wenigstens eines von mehreren Bearbeitungsaggregaten ein- oder mehrfach bearbeitet werden, die in diesem Bearbeitungsaggregat zunächst zu bearbeitenden Materialeinheiten in einem Gebinde durch wenigstens ein Transportmittel diesem Bearbeitungsaggregat zugeführt werden und ...

Sheet storing device for commercial printing machine i.e. electrophotographically operating printing machine, has guiding surface presenting convex rounded guiding surface around perpendicular axis at side of storage area on storage path

The device has a storage tray (4) for storing and stacking a sheet (2). The storage tray has a guiding surface (7) that is arranged for aligning and guiding the stored sheets or stacks on both sides of a storage area of the sheet or stack. The guiding surface presents a convex rounded guiding surface around a perpendicular axis at a side of the storage area to the sheet on its storage path. The guiding surface is position-changeable transverse to the storage path of the sheet. The guiding surface is mounted above the storage tray.

PROCESSING PAPER AND OTHER WEBS

PROCESSING PAPER AND OTHER WEBS

SPLICING PAPER WEBS.

In an arrangement for splicing the start of a new roll of web-stock to the end of an old roll, both rolls are supported with their rotation axes horizontal on respective identical mobile reelstands or trollies which can be moved freely to and from the splicer, but which are accurately positioned (both mutually and with respect to the splicer) during splicing by a rail system associated with the splicer. As described, the top surfaces of a first pair of rails (37) (one each side of the trolley) are engaged by lateral projections (35) on the trolley, the said rail surfaces being configured to raise the trolley from at least some of its wheels as it is progressed towards the splicing station, whereby to ensure that the reel rotation axis is in correct horizontal alignment. Lateral alignment of the trolley is ensured by another pair of rails (32) between which the trolley passes, the trolley having spherical contact rollers (30, 31) for engagement therewith. ...

Sheet conveyance apparatus and image forming apparatus

PROCESSING PAPER AND OTHER WEBS

PROCESSING PAPER & OTHER WEBS

TREATMENT OF PAPER AND OTHER COURSES.

Printer having front-end paper feeding and front-end paper outputting and being capable of changing paper discharge path

... (12) th J 91-FJ)M i IN -Ef |EP EM (19) P d PIT, R. ~(10) M T"/ V4:Y (43) d VTW O 2019/085647 A1 2019 4 5 )P 9 (09.05.2019) WIPO T PWC0T (51) M pN j' } (72) T, 11 A ; (72 B65H29/20 (2006.01) B65H 3102 (2006.01) (71) iMA:t$ i(LIN, Yi) [CN/CN]; + P4 I B65H29/52 (2006.01) B41J 13/00 (2006.01) M i M X Ti % M 116 - 2 ft 2 $ 2014 (21) p iM -: PCT/CN2018/104950 2, Jiangsu 210000 (CN)o (22) M pj$ i E: 2018 * 9 9 11 I H (11.09.2018) (7){I- q tf R 5](NANJING TIANYI PATENT AGENT CO., LTD.); (25)~ji# $7 Pd _I Nq ~ , E yIY 2- ,I# (26)QW 4B)21$h 4,Jiangsu 210018 (CN)o (30)VIt.Vf5: (8 1)P AT-t YHfl~S 201810639488.0 2018 4 6A]20H (20.06.2018) CN fJv): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, I, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, (54) Title: PRINTER HAVING FRONT-END PAPER FEEDING AND FRONT-END PAPER OUTPUTTING AND BEING CA PABLE OF CHANGING ...

Roller feed mechanism for printer having multiple printheads

A printer (1) includes: a first fixed printhead (3); a second fixed printhead (5) positioned downstream of the first printhead (3) relative to a media feed direction (F); a fixed platen (7) for supporting print media (9); an input roller assembly (15) positioned upstream of the first printhead (3), the input roller assembly (15) comprising a pair of input rollers (16A, 16B) having a first nip force ...

PRINTER HAVING FRONT-END PAPER FEEDING AND FRONT-END PAPER OUTPUTTING AND BEING CAPABLE OF CHANGING PAPER DISCHARGE PATH

The invention discloses a paper discharge path switchable front-end paper feeding and front-end paper discharging printer. The printer comprises a shell and a paper discharge unit. The paper discharge unit comprises a first paper discharge mechanism and a paper discharge channel composed of an upper shell body and a lower shell body. The front end face of the shell is a vertical plane A. A paper inlet and a paper outlet are horizontally formed within the plane A. The paper inlet is located under the paper outlet. A paper discharge path switchable paper conveying system is arranged in the portion of the paper discharge channel in front of the first paper discharge mechanism. Through the paper discharge path switchable front-end paper feeding and front-end paper discharging printer, paper is placed and taken conveniently.

INK-JET PRINTING SYSTEMS

A media transport system for conveying sheets of media along a process path extending from a media-uptake zone and thereafter through a print zone. The system includes a transport belt for holding the sheets of media generally flat via vacuum for ink jet printing. The media transport system includes a seamed vacuum transport belt, and a platen supporting the belt. The belt comprises a partially-conductive coating having a surface resistivity of from about 10 1 to about 10 6 ohms per square on a polymeric substrate. The partially-conductive coating comprises a polyester and a conductive component such as carbon black, and optionally includes a plasticizer and a leveling agent. The polymeric substrate is either a thermoplastic or a thermoset material.

Device for supporting rollers of printable material with translation-adjustable support elements

탄성체 롤러

... 롤러 샤프트와 탄성 부재를 가지는 탄성 부재는, 내층 측 탄성 부재와 피복층을 가지고, 내층 측 탄성 부재는, 롤러 샤프트 측으로부터 순서대로, 기저(基底)층, 중간층을 포함하고, JIS K 6253 규격에 규정하는 듀로미터 타입 A에 의한 고무 경도가 30~80도이며, 또한, 기저층의 고무 경도는 중간층의 고무 경도보다 높고, 피복층은 실리콘 수지로부터 구성되며, 또한 10~100㎛의 두께를 가지고, 실리콘 수지는 SRIS 0101 규격에 규정하는 스프링식 아스카 C형에 의한 경도가 20도 이하이며, 내층 측 탄성 부재에는 그 원주 방향으로 따라 복수개의 내층 홈이 형성되고, 내층 홈의 폭은 25~1300㎛이며, 내층 홈의 깊이는 25~500㎛이며, 내층 홈은 단면 V자 형상이며, 또한 50~120도의 홈 각도를 가진다.

화상형성장치

... 화상형성장치가 개시된다. 화상형성장치는, 급지 유닛; 인쇄매체에 화상을 형성하는 현상 유닛; 급지 유닛으로부터 이송된 인쇄매체를 현상 유닛으로 투입하는 제1 및 제2 롤러를 구비한 투입 유닛; 및 급지 유닛으로부터 투입 유닛으로 이동하는 인쇄매체를 가이드하고, 제1 롤러를 제2 롤러에 선택적으로 가압하도록 제1 롤러의 회전축을 중심으로 회전 가능하게 마련된 가이드 유닛;을 포함한다.

A ribbon attachment device and a ribbon printer system having the same

WINDING DEVICE AND PRINTING DEVICE

피니셔 기구용 용지 정렬 장치

... 본 발명은 인쇄된 용지를 피니셔 기구 측으로 배출하는 적어도 하나 이상의 배지 롤러를 구비한 배지 롤러 샤프트; 상기 배지 롤러 샤프트의 전방에서 상기 배지 롤러 샤프트와 나란하게 설치되고, 구동 모터의 구동에 의해 회전하는 패들 샤프트; 상기 패들 샤프트와 일체로 회전하도록 상기 패들 샤프트에 구비되고, 상기 패들 샤프트와 함께 회전하여 상기 배지 롤러를 통해 배출되는 용지를 하방으로 눌러주는 적어도 하나 이상의 패들; 상기 패들 샤프트의 후방에 상기 패들 샤프트와 나란하게 설치되고, 상기 패들 샤프트와 연동하여 회전하는 스윙 푸셔 샤프트; 상기 스윙 푸셔 샤프트와 일체로 회전하도록 상기 스윙 푸셔 샤프트에 구비되고, 상기 스윙 푸셔 샤프트와 함께 회전하여 상기 배지 롤러를 통해 배출되는 용지의 후단을 하방으로 눌러주는 적어도 하나 이상의 스윙 푸셔; 및 상기 패들 샤프트와 상기 스윙 푸셔 샤프트가 연동되어 상기 구동 모터의 구동력에 의해 상기 패들 샤프트와 상기 스윙 푸셔 샤프트가 함께 회전되도록 하는 연동 수단을 포함하는 피니셔 기구용 용지 정렬 장치에 관한 것으로서, 구동력 전달 구조 및 과정을 단순화함으로써, 피니셔 기구의 제조 비용을 감소시키고, 구동 소음을 최소화할 수 있다.

중송 방지 급지 장치

... 본 발명은 중송 방지 급지 장치에 관한 것이다. 본 발명의 일 실시예에 따른 중송 방지 급지 장치는 복수의 용지가 수납된 프린터의 트레이 상부에 위치하는 본체; 및 상기 본체에 설치되고 정전기를 발생시키는 정전기 발생부를 포함할 수 있다.

화상 형성 시스템, 화상 형성장치, 제전 장치 및 비일시적 컴퓨터 판독 가능한 기억 매체

... 화상 형성 시스템은, 화상 형성장치와, 상기 화상 형성장치에 의해 화상이 형성된 시트를 제전하는 제전 장치를 구비한다. 상기 제전 장치는, 상기 시트를 반송하는 반송부와, 상기 반송부에 의해 반송된 상기 시트를 제전하는 제전부와, 상기 제전부의 상태에 기초하여 특정한 신호를 송신하는 신호 송신부를 구비한다. 상기 화상 형성장치는, 상기 신호 송신부에 의해 송신된 상기 신호를 수신하는 신호 수신부와, 상기 신호 수신부에 의해 수신된 상기 신호에 대응하는 통지 내용을 나타내는 제 1 통지부를 구비한다.

Sheet feed tray, sheet feed device, and image forming apparatus

A sheet feed tray to stack a sheet to be conveyed to an image forming apparatus includes a platen on which a first portion of the sheet is placed; a pair of first support portions to support a second portion of the sheet folded back upward at a trailing end of the first portion; and a pair of second support portions to support a third portion of the sheet folded back upward at a trailing end of the second portion. In the sheet feed tray, the first support portions and the second support portions are reciprocally movable toward each other, and a distance between the second support portions is wider than a distance between the first support portions.

BINDING UNIT, SHEET PROCESSING DEVICE, AND IMAGE FORMING DEVICE PROVIDED WITH THEM

To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

MEDIUM TRANSPORTING APPARATUS, MEDIUM PROCESSING APPARATUS, AND RECORDING SYSTEM

A medium transporting apparatus including a paddle that comes in contact with a medium discharged on a first tray including an upstream end matching member and that rotates to move the medium towards the upstream end matching member, and a low frictional resistance member configured to switch between an advanced state advanced from outside a medium mount region of the first tray to a first region, and a retracted state retracting from the first region to an outside of the medium mount region. The low frictional resistance member is, after a first medium is mounted on the first tray, switched from the retracted state to the advanced state, and is interposed between the first medium and a second medium when, after discharging the first medium, moving the second medium discharged from a pair of discharge rollers towards the upstream end matching member with the paddle.

Sheet feeding device

A sheet feeding device includes: a main assembly; a holding unit detachably mountable to the main assembly; a portion-to-be-engaged provided on the main assembly; a rotatable member, provided in the holding unit, for feeding a sheet; and a guiding member for guiding feeding of the sheet. The guiding member is provided in the holding unit and includes an engaging portion engageable with the portion-to-be-engaged. The guiding member is movable between an engaging position where the portion-to-be-engaged and the engaging portion are engaged with each other to guide the sheet and a guiding position where the portion-to-be-engaged and the engaging portion are disengaged from each other to guide demounting and mounting of the holding unit.

Recording medium take-up mechanism and printer

A recording medium take-up mechanism and a printer prevent a recording medium having been printed from easily twisting when winding the recording medium. A printer includes a platen supporting recording paper that is delivered frontward during printing, a take-up shaft on which the recording paper having been printed is wound, a tension bar configured to impart tension to the recording paper by pressing a portion of the recording paper that is between the platen and the take-up shaft, a support arm supporting the tension bar, and a support shaft pivotably supporting the support arm. A center of the support shaft is positioned inside a contour of the take-up shaft, as viewed in an axial direction of the support shaft.

Sheet stacking apparatus and image forming apparatus

A sheet stacking apparatus includes a body, a stacking portion which a sheet is stacked, a width regulating portion configured to move between a first position and a second position closer to a center of the stacking portion in a width direction orthogonal to a sheet feeding direction than the first position, and including a regulating surface configured to regulate a position, in the width direction, of the sheet stacked on the stacking portion, and a supporting portion pivotably supporting the stacking portion. The supporting portion is disposed on the body and closer to the center of the stacking portion in the width direction, than the regulating surface of the width regulating portion positioned at the first position.

ПЕЧАТАЮЩЕЕ УСТРОЙСТВО С ДВУМЯ БУМАЖНЫМИ РУЛОНАМИ

Описано печатающее устройство с двумя бумажными рулонами, содержащее установочный корпус для размещения перечисленных ниже элементов и бумажных рулонов. Первый бумажный рулон и второй бумажный рулон расположены на установочном корпусе посредством вала, поддерживающего бумажный рулон. Бумажные ленты первого бумажного рулона и второго бумажного рулона селективно подаются в печатающий элемент через бумагопроводящие тракты. Первый бумажный рулон и второй бумажный рулон селективно подаются в печатающий элемент через первый бумагопроводящий тракт и второй бумагопроводящий тракт, которые являются взаимно независимыми. Первый бумагопроводящий тракт и второй бумагопроводящий тракт взаимно перекрываются. Задний конец первого бумагопроводящего тракта и задний конец второго бумагопроводящего тракта образуют концевой участок пересечения, и передние части бумажных лент бумажных рулонов заходят в печатающий элемент через упомянутый концевой участок пересечения. Упомянутые тракты устройства полностью открыты ...

ПЕЧАТАЮЩЕЕ УСТРОЙСТВО С ДВУМЯ БУМАЖНЫМИ РУЛОНАМИ

Transporting sheets

Portable cleanroom printing cabinet

PORTABLE CLEANROOM PRINTING CABINET A portable printing cabinet having a housing with a substantially enclosed interior and an opening formed in a side surface thereof, a printing device located within the interior of said housing, and a paper tray positioned outside of the housing and in communication with the opening of the housing is provided. Cz cn d LO 00 "r Co LO :C: IWO LL. C) Cl> ...

PROCESSING PAPER AND OTHER WEBS

PROCESSING PAPER AND OTHER WEBS A printing apparatus has an array of cartridges for printing a web of e.g. paper passing through the array, and one or more units containing printing medium. The cartridges each are capable of transferring the printing medium from the unit(s) to the web. The unit(s) and the cartridges of the array are relatively movable, to allow the unit(s) to interact successively with at least two of the cartridges. In this way it is possible to change printing from one cartridge to another, allowing changes to be made to what is printed, without halting the movement of web significantly. The present invention also proposes that the cartridges may have printing cylinders of different sizes, and furthermore that a mobile unwind stand may be used to move web material to the printing apparatus, and the web output from the printing apparatus processed by sheet folding techniques.

PORTABLE CLEANROOM PRINTING CABINET

A portable printing cabinet having a housing with a substantially enclosed interior and an opening formed in a side surface thereof, a printing device located within the interior of said housing, and a paper tray positioned outside of the housing and in communication with the opening of the housing is provided.

Image-text paper feeder

Paper conveying machine with paper breakage degree detection function

탄성체 롤러

... 롤러 샤프트와 탄성 부재를 가지는 탄성체 롤러. 탄성 부재는, 내층 측 탄성 부재와 피복층을 가진다. 내층 측 탄성 부재는 JIS K 6253 규격에 규정하는 듀로미터 타입 A에 의한 고무 경도가 30~80도이며, 내층 측 탄성 부재는 JIS K 6252 규격에 규정하는 슬릿 없는 앵글형 시험편을 사용하는 인열 강도가 25N/mm 이상이며, 피복층은 실리콘 수지로부터 구성되며, 또한 10~100㎛의 두께를 가지고, 실리콘 수지는 SRIS 0101 규격에 규정하는 스프링식 아스카 C형에 의한 경도가 20도 이하이며, 내층 측 탄성 부재에는 그 원주 방향으로 따라 복수개의 내층 홈이 형성되고, 내층 홈의 폭은 25~1300㎛이며, 내층 홈의 깊이는 25~500㎛이며, 내층 홈은 단면 V자 형상이며, 또한 50~120도의 홈 각도를 가진다.

PRINTING APPARATUS FOR DISCRIMINATING SECURITY PAPERS AND SYSTEM FOR CONTROLLING MULTIPLE PRINTING APPARTUS

According to one embodiment of the present invention, provided is a printing apparatus for discriminating security papers. The present invention comprises: a paper loading unit for loading papers; a security paper recognition sensor provided to detect a security label disposed in predetermined portions of the papers and detecting a paper added in the other portion of the paper loading unit; and a controller determining whether or not the papers are secure in accordance with a detecting signal of a security paper detection means so as to control execution of copy or printing. COPYRIGHT KIPO 2018 (200) Controller ...

Tray drawer and multi-function printer using the same

A tray drawer and a multi-function printer using the same are provided. The tray drawer includes a drawer body, a handle and an elastic element. The drawer body has an opening. The handle is pivotally connected to the drawer body and includes a handle portion and an engaging portion connected to the handle portion. When the drawer body is at a locking state, the engaging portion is projected from the opening. The elastic element connects the engaging portion to the drawer body. There is no relative motionbetween the engaging portion and the handle portion.

LONG MEDIUM

A long medium (1) is provided with scale marks (11) on the straight lines (L1) of side edge sections (1a). The distance (d) between each adjacent scale marks (11) is constant. The medium (1) is provided with first index holes (12) on the straight lines (L1). The medium (1) is further provided with second index holes (13) on another straight line (L2). The distance (P2) between adjacent second indexes (13) is less than the distance (P1) between adjacent first indexes (12). The medium (1) is sequentially consumed from the front end (1b) thereof. The second indexes (13) approach closer to the first indexes (12) as the medium (1) is consumed. The distance (H) between a starting scale mark (11a) and a second index (13) represents the portion of the entire length (L) of the medium (1) which has not been consumed. The scale marks (11) are sprocket holes. The medium (1) is provided with release paper (5) and an adhesive sheet (3). An image is formed on the medium (1) by a printer.

Media type determination device, electronic apparatus, and media type determination method

A media type determination device includes: a light detector that detects light from a target object; a sensor that transmits an ultrasonic wave to the target object and performs an ultrasonic measurement for receiving the ultrasonic wave transmitted through the target object; and one or a plurality of processors. The one or plurality of processors are programmed to execute a method including: acquiring light information corresponding to the light from the target object, from the light detector; acquiring ultrasonic wave information corresponding to an ultrasonic wave via the target object from the sensor, and determining a type of target object based on the light information and the ultrasonic wave information.

SHEET ALIGNING MECHANISM

A sheet aligning mechanism includes first and second conveyance mechanisms disposed on first and second sides of a sheet conveyance path, respectively. A nip is formed between the first and second conveyance mechanisms. The first conveyance mechanism includes a first roller, a second roller, and a first conveyance belt wound around the first and second rollers. The first and second rollers are configured to rotate in a first direction along a sheet conveying direction for sheet conveyance, and stop rotation or rotate in a second direction opposite to the first direction for sheet alignment. The first conveyance belt includes an extended region between the first and second rollers in an extending direction inclined with respect to the sheet conveying direction, such that a width of the sheet conveyance path becomes narrower towards the nip in the sheet conveying direction.

SHEET SEPARATION DEVICE, LAMINATOR, IMAGE FORMING APPARATUS, AND IMAGE FORMING SYSTEM

A sheet separation device includes a rotator, a nipping member to nip the two-ply sheet with the rotator, a first conveyor to convey the two-ply sheet in a first direction toward the rotator and a second direction reverse thereto, a winding member to wind the two-ply sheet around the rotator, a second conveyor to convey a sheet medium in the second direction, a separation claw to move in a width direction; a sheet guide to guide the separated two sheets to different passages; and control circuitry. The first conveyor conveys the two-ply sheet to the rotator with a bonded portion at an upstream end. The control circuitry inserts the separation claw into a space between the two sheets, adjusts a projection amount of the two-ply sheet from a nip of the first conveyor in the second direction, and inserts the sheet medium in two-ply sheet adjusted in the projection amount.

SHEET CONVEYANCE DEVICE, IMAGE FORMING APPARATUS, METHOD, AND STORAGE MEDIUM

A sheet conveyance device includes a conveyance roller pair to convey a sheet, a skew correction roller pair to correct a skew of the sheet in a state in which the skew correction roller pair is being stopped, first and second conveyance guides, and a protrusion. The first conveyance guide includes a bend contact portion to come into contact with a portion forming a bend on the first surface of the sheet. The second conveyance guides the sheet. The protrusion is disposed between the skew correction roller pair and the bend contact portion to come into contact with the first surface of the sheet. The protrusion protrudes toward the second conveyance guide from the first conveyance guide in a manner as to intersect with a straight line connecting two nip portions and the bend contact portion in a cross section perpendicular to a width direction.

Sheet conveyer and image forming apparatus

A sheet conveyer having a tray, a feed roller, a separator roller, a holder, an arm, a load applier unit, and a cam member is provided. The load applier unit includes a contacting member, a lever, and a contractive spring. One of the contacting member and the arm has one of a protrusion and a hole section, and the other of the contacting member and the arm has the other of the protrusion and the hole section. The holder is maintained in a second holder-position when the protrusion contacts one end of the hole section and applies a weight of the load applier unit to the arm and maintained in the first holder-position when the protrusion contacts the other end of the hole section and applies a load from the contractive spring acting in a direction to press the feed roller against sheets to the arm.

Binding unit, sheet processing device, and image forming device provided with them

To facilitate permeation of water when water is applied to the crimping range of a sheet made of a water-permeable paper material. A binding unit applies water to placed sheets and then crimp-binds the sheets. The binding unit includes a pair of pressure teeth (pressure teeth and receiving teeth part) provided on both the front and back sides of the sheets and configured to crimp-binding the sheets, a water reservoir provided on the back surface side of any one of the pressure teeth and configured to store water to be applied to the sheet, and a pressurizing member (piston) that pressurizes the water in the water reservoir to apply water to the sheet crimping range.

MEDIUM FEEDING APPARATUS

A medium feeding apparatus includes a feeding portion that performs a feeding operation, which feeds a medium to a downstream side, and a reverse feeding operation, which feeds the medium to an upstream side, and a wind-up portion that performs a wind-up operation, which winds up a medium fed to the downstream side by the feeding operation, and a unwinding operation that unwinds the wound up medium, in which the wind-up portion performs the unwinding operation prior to the reverse feeding operation.

IMAGE FORMING APPARATUS

An image forming apparatus includes a stacking portion including a lifting portion, a feeding member feeding a sheet stacked on the lifting portion to a conveyance passage, a position detector detecting movement of the sheet stacked on to a feedable position to the conveyance passage, a driver including a motor and performing the lifting operation of the lifting portion, a rotation detector detecting rotation of the motor, and a controller. The controller determines a factor that the position detector does not detect the movement of the sheet stacked on the lifting portion to the feedable position within a predetermined time based on a detection result of the rotation detector while controlling the driver to lift up the lifting portion.

Printer vacuum conveyor with adjustable active area

A printing system includes a driving belt configured to drive media through the printing system relative to one or more print heads and a vacuum conveyor system. The vacuum conveyor system includes a vacuum chamber cover having a first surface and a second surface opposite the first surface, as well as a plurality of openings through the cover from the first surface to the second surface. A number of seals are disposed to match the location of openings. Each seal extends along the length of the vacuum chamber cover and is drivable to open or close a region with openings. A vacuum chamber below the second surface of the vacuum chamber cover is configured to apply a vacuum to the media through one or more of the openings that are open. The applied vacuum constrains the media on the driving belt by flattening it against the driving belt.

РУЛОННОЕ ПЕЧАТНОЕ УСТРОЙСТВО ДЛЯ ДВУСТОРОННЕЙ ПЕЧАТИ

Печатное устройство имеет ряд патронов для печатания рулонного материала, например бумаги, проходящего через ряд, и один или несколько блоков, содержащих печатную среду. Каждый патрон способен переносить печатную среду из блока или блоков на рулонный материал. Блок или блоки и патроны ряда могут относительно перемещаться, позволяя блоку или блокам взаимодействовать последовательно по меньшей мере с двумя патронами. Таким образом, можно заменять печать с одного патрона на другой, что позволяет изменять содержание того, что печатается без остановки практически движения рулонного материала. 7 з.п. ф-лы, 7 ил.

РУЛОННОЕ ПЕЧАТНОЕ УСТРОЙСТВО

Использование: в полиграфии. Сущность изобретения: печатное устройство имеет ряд патронов для печатания рулонного материала, например, бумаги, проходящего через ряд, и один или несколько блоков, содержащий печатную среду. Патроны каждый способны переносить печатную среду из блока или блоков на рулонный материал. Блок или блоки и патроны ряда могут относительно перемещаться, позволяя блоку или блокам взаимодействовать последовательно по меньшей мере с двумя патронами. Таким образом, можно заменять печать с одного патрона на другой, что позволяет изменять содержание того, что печатается, без остановки практически движения рулонного материала. Настоящее изобретение также предлагает патроны, которые могут иметь печатные цилиндры различных размеров. 9 з.п. ф-лы, 7 ил.

РУЛОННОЕ ПЕЧАТНОЕ УСТРОЙСТВО ДЛЯ ДВУСТОРОННЕЙ ПЕЧАТИ

Печатное устройство имеет ряд патронов 9, 10, 11 для печатания рулонного материала 2, например бумаги, проходящего через ряд, и один или несколько блоков 17, 18, содержащий печатную среду. Патроны 9, 10, 11 каждый способны переносить печатную среду из блока или блоков 17, 18 на рулонный материал 2. Блок или блоки 17, 18 и патроны 9, 10, 11 ряда могут относительно перемещаться, позволяя блоку или блокам 17, 18 взаимодействовать последовательно по меньшей мере с двумя патронами 9, 10, 11. Таким образом можно заменять печать с одного патрона 9, 10, 11 на другой, что позволяет изменять содержание без остановки движения рулонного материала 2.

Vorrichtung zum Handhaben von Papierblättern und diese Vorrichtung benutzendes Bilderzeugungsgerät

Vorrichtung zum Handhaben von Papierblättern und diese Vorrichtung benutzendes Bilderzeugungsgerät

Sheet conveying apparatus and image forming apparatus

Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus 104 that comprises a cover or door member 124 including a first guide surface 124a which is capable of switching between a closed and an open state, a guide member 122 that is supported pivotally by the apparatus body with a second guide surface 122b opposing to the first guide surface and a conveyance unit 121 for conveying a sheet through a path between the first guide surface and the second guide surface. The guide member includes an abutment portion 122d formed of a depression in the second guide surface. The sheet conveyance apparatus further includes a regulation portion 123 supported on the apparatus body and formed to abut against the abutment portion so as to regulate a pivot angle of the guide member.

Sheet conveyance apparatus and image forming apparatus

PROCESSING PAPER AND OTHER WEBS

ROTARY WEB PRINTING MACHINE

Image forming apparatus

An image forming apparatus includes a discharge path through which the recording medium that has passed through the printing path is discharged; a reverse path in which the recording medium that has passed through the printing path is reversed; a resupply path in which the recording medium which reversely travels along the reverse path is guided to the printing path; a connection portion in which the printing path, the discharge path, the reverse path, and the resupply path cross one another; and a first guide member that is disposed in the connection portion.

Sheet feeder and image forming apparatus

A sheet feeder includes a spool and a pair of roll holders. The spool is configured to hold a roll of print medium having an adhesive surface with no release liner attached thereto, with the roll fitted around the spool. The pair of roll holders is configured to hold the spool at opposed ends of the spool, each including at least a first rotary member, a second rotary member, and a third rotary member that contact an outer circumferential surface of the spool at different locations along the outer circumferential surface of the spool to rotatably hold the spool.

Recording device

A winding unit includes a rail extending in an X direction, a support portion that is supported on the rail, that is movable in the X direction, and that is capable of supporting rolled medium, and a support mechanism that is supported on the rail and that is movable in the X direction. The support mechanism includes a placement portion capable of supporting the rolled medium from a vertically downward direction side, and a position adjustment unit that rises the placement portion in a vertically upward direction when the rolled medium is removed from the support portion. When viewed from a Y direction intersecting the X direction, a placement surface of the placement portion on which the rolled medium is placed is curved to be convex in the vertically upward direction.

Media Processing Device, Printing Device, and Control Method of a Media Processing Device

A printer 1 has a media orientation detection means 65 that detects displacement of the media after conveyance by the conveyance mechanism 63 stops; and a media processing device control unit 100 that controls cutting the media by an automatic paper cutter 60 when the media orientation detection means 65 detects displacement of the media, and controls processing the media by a processing unit when a communication unit receives control data while in a standby mode waiting for detection of media displacement by the media orientation detection means 65.

WEB ROLL HANDLING & LOADING SYSTEM

A web roll handling and loading system and methods employ hubs positioned on opposing sides of a roll of web material wound on a hollow tubular core. Hub faces have an annular shape configured to be seated in respective ends of the hollow tubular core. The hubs are pivotably supported for pivoting between an operational position and a deflected position. The roll of web material is loaded on the hubs by lifting it from beneath the hubs to deflect the hub faces arcuately upward, then lowering the roll to allow the hub faces to pivot downward and become seated in the ends of the hollow tubular core. Alternatively, the roll is loaded into a pick-up tool by lowering the pick-up tool downward to the roll so the hubs deflect arcuately upward, then raising the tool so the hubs pivot downward and become seated in the hollow tubular core. 1. A roll handling and loading system for a roll of web material comprising web material wound on a hollow tubular core , the roll of web material having a horizontally-oriented length , the system comprising:a frame having a horizontally-oriented space between opposing sides of the frame;a pair of hubs positioned on the opposing sides of the frame, each of the hubs mounted on a movable bar for moving the movable bar and the hubs in a vertical direction relative to the frame, at least one of the hubs comprising a compression spring positioned within the at least one of the hubs along a horizontal rotational axis to provide an inward force toward the roll of web material, and each of the hubs pivotably supported on a pivot mechanism for pivoting movement between an operational position on the horizontal rotational axis and a deflected position in which a hub face of each of the hubs is deflected in an arcuate direction away from the horizontal rotational axis.2. The system of claim 1 , wherein the hub face has a non-stick surface.3. The system of claim 2 , wherein the hub face of each of the hubs has a cone or beveled shape with an incline ...

Sheet conveying apparatus and image forming apparatus

A sheet conveying apparatus for conveying a sheet includes a conveyance roller, a motor, a phase determiner, and a controller. The phase determiner determines a rotor rotation phase of the motor that drives the conveyance roller to convey the sheet. The controller controls so that a value of a rotor torque current component becomes a target value of the torque current component and controls so that an excitation current component value becomes a target value of the excitation current component, and controls to reduce a deviation between a command phase and the determined rotation phase. The controller controls so that a magnetic flux penetrating through a winding is weaker than a magnetic flux of the rotor, and so that a magnetic flux penetrating through the winding in a second period is stronger than the magnetic flux penetrating through the winding in the first period.

SHEET-PROCESSING MACHINE HAVING A SHEET-GUIDING DRUM, GRIPPER AND METHOD FOR PRODUCING A GRIPPER SYSTEM

A sheet-guiding drum in a sheet-processing machine, comprises a gripper system, a gripper shaft, and a gripper tube. A method for producing a gripper system is also disclosed. The sheet-guiding drum further improves the sheet transport process, in particular the turning process, in sheet-processing machines. The problem addressed by the invention is in particular the provision of a low-wear rolling-element bearing that preferably eliminates the aforementioned disadvantages and, in particular, meets all further boundary conditions. This problem is solved in that the gripper tube is assembled from tube segments. 150.-. (canceled)5231. The sheet-processing machine according to claim 51 , characterized in that the gripper tube is mounted at least at one connecting point of the tube segments ().53. The sheet-processing machine according to claim 51 , characterized in that the gripper tube is supported at both axial ends claim 51 , in each case by a bearing point that engages on the lateral surface of the gripper tube.543434. The sheet-processing machine according to claim 51 , characterized in that the gripper tube surrounds the gripper shaft () across the entire width of a sheet-bearing surface and/or a drive element for the gripper tube and/or the gripper shaft () is mounted outside of a sheet-bearing surface.553430. The sheet-processing machine according to claim 51 , characterized in that a drive pinion for the gripper tube and/or the gripper shaft () is mounted at each end in relation to the drum body claim 51 , on bearing supports ().56323433. The sheet-processing machine according to claim 51 , characterized in that rigid gripper tongues () that protrude through recesses in the gripper tube are allocated to the gripper shaft () claim 51 , and the gripper tube supports spring-mounted gripper strikes ().5736353434363436. The sheet-processing machine according to claim 51 , characterized in that one slotted needle roller and cage assembly () is allocated to one ...

Printed output inspection

In one example, a printed output inspection unit ( 300 ) for a web printing system ( 100 ). The inspection unit has a first L-inverter ( 310 ) disposed in a first plane ( 315 ), and a second L-inverter ( 320 ) disposed in a second plane ( 325 ) offset from the first plane in a direction orthogonal to the first plane. The inspection unit ( 300 ) also has an inspection area ( 340,350 ) between the first and second L-inverters to view a side ( 307,309 ) of a web substrate ( 305 ), the inspection area extending in the direction orthogonal to the first plane.

Temporary fixation of a portion of a printable medium

An apparatus for manipulating a printable medium for the use in a printer is described. The apparatus comprises a drag device, a feed device and a lock device. The drag device conveys the printable medium to a printing area. The feed device feeds the printable medium to the drag device. The lock device is disposed between the feed device and the drag device. The lock device temporarily fixes a first portion of the printable medium so as to cause a second portion of the printable medium being in contact with the drag device to slip along the drag device.

Image forming apparatus capable of detecting length of sheet in conveying direction

An image forming apparatus includes first and second light emitting units, a light receiving unit for receiving light of the first light emitting unit when it is reflected, and receiving light of the second light emitting unit when it is not reflected, to output a signal of a predetermined level, and a control unit for starting light emission of the first light emitting unit before a front end of a paper sheet reaches an area, stopping light emission of the first light emitting unit while starting light emission of the second light emitting unit before a rear end of the paper sheet passes the area, and detecting a length of the paper sheet based on time after the output signal becomes a predetermined level during light emission of the first light emitting unit until the output signal becomes the predetermined level during light emission of the second light emitting unit.

AUTOMATIC DOCUMENT FEEDER

An automatic document feeding system includes an image reader including an optical window and a light source illuminating the optical window, and an automatic document feeder including a reflective flag positioned within a viewing region of the optical window. 1. An automatic document feeding system , comprising:an image reader including an optical window and a light source illuminating the optical window; andan automatic document feeder including a reflective flag positioned within a viewing region of the optical window.2. The automatic document feeding system of claim 1 , wherein the reflective flag is rotational about a pivotal axis in a direction of a media path.3. The automatic document feeding system of claim 1 , wherein the image reader is an optical scanner.4. The automatic document feeding system of claim 2 , wherein the reflective flag includes a trigger extending into the media path at a location prior to the optical window.5. The automatic document feeding system of claim 1 , wherein movement of a medium against the trigger initiates rotational movement of the reflective flag and signals the leading edge of the medium.6. A method of automatic document feeding claim 1 , comprising:reflecting a light source with a reflective surface of a flag in an optical window of a document feeding device in a first state;initiating movement of a medium through the document feeding device;contacting the medium against a trigger of the flag;rotating the reflective surface of the flag out of the optical window in response to movement of the medium past the trigger;changing light reflectance in the optical window to a second state;detecting a leading edge of the medium in response to the change of state prior to the medium passing into the optical window; andcontinuing movement of the medium through the document feeding device.7. The method of claim 6 , comprising:signaling a scanner to begin scanning a predetermined time after he change to the second state.8. The method ...

PRINT MEDIA TRANSPORT APPARATUS

In an example, a print media transport apparatus comprises a plurality of pallets having a self-propulsion mechanism, and being to support print media. The pallets may circulate on an endless track comprising a printing zone, a descending zone and an ascending zone. A controller may control the self-propulsion mechanisms of the pallets such that a pallet on the descending zone is at least partially supported by another pallet which is ahead on the track, and a pallet on the ascending zone is at least partially driven by pallet which follows on the track. 1. A print media transport apparatus comprising:a plurality of pallets having a self-propulsion mechanism, and being to support print media;an endless track on which the plurality of pallets circulate, the track comprising a printing zone, a descending zone and an ascending zone,a controller to control the self-propulsion mechanisms of the pallets such that a pallet on the descending zone is at least partially supported by another pallet which is ahead on the track, and a pallet on the ascending zone is at least partially driven by pallet which follows on the track.2. A print media transport apparatus according to in which pallets are linked in an endless loop claim 1 , the pallets being coupled with a coupling allowing a variable spacing between the pallets claim 1 , wherein controller is to drive the pallets such:while a pallet is on the printing zone of the track, the spacing remains constant, and,while a pallet is on the descending and ascending zones of the track, the spacing is at a minimum.3. A print media transport apparatus according to in which the controller is to control the speed of the pallets such that claim 1 ,while a pallet is on the printing zone of the track, the speed is maintained to within a tolerance band, and, in another zone of the track, the speed varies outside the tolerance band.4. A print media transport apparatus according to in which each pallet comprises at least two portions claim 1 ...

Sheet feeding device

A sheet feeding device includes: a main assembly; a holding unit detachably mountable to the main assembly; a portion-to-be-engaged provided on the main assembly; a rotatable member, provided in the holding unit, for feeding a sheet; and a guiding member for guiding feeding of the sheet. The guiding member is provided in the holding unit and includes an engaging portion engageable with the portion-to-be-engaged. The guiding member is movable between an engaging position where the portion-to-be-engaged and the engaging portion are engaged with each other to guide the sheet and a guiding position where the portion-to-be-engaged and the engaging portion are disengaged from each other to guide demounting and mounting of the holding unit.

Thermal printer

A thermal printer, includes a head unit including a thermal head configured to perform printing on a recording sheet; a platen unit, which includes a platen roller configured to convey the recording sheet, and is separably combined with the head unit; a printer main body, which has a recording-sheet receiving portion configured to receive the recording sheet, and has the head unit mounted thereto; a printer cover, which has the platen unit mounted thereto, and is coupled to the printer main body so as to be pivotable; and a separator, which is provided in the recording-sheet receiving portion, and is configured to separate parts of the recording sheet, which is rolled into a roll shape around a core body, folded on each other at a rolling start portion, which is rolled around the core body and has a turn-back shape.

Image forming apparatus and image forming method

An image forming apparatus is provided. The image forming apparatus includes an engine unit to be used for performing an image forming job, a motor to start the engine unit, a driver circuit to sense a current flowing in the motor and supply the motor with a power source, and a processor to determine a load size of the motor based on the sensed current and control a driving speed of the motor based on the determined load size.

WINDING DEVICE AND IMAGE FORMING DEVICE

There is provided a winding device, including: a winding part that winds a longitudinal recording medium in which an image is formed: a suppressing member that suppresses generation of a strain in the longitudinal recording medium wound by the winding part; and an operation part that operates the suppressing member in a case where the strain in the longitudinal recording medium wound by the winding part is a threshold value or more. 1. A winding device , comprising:a winding part that winds a longitudinal recording medium in which an image is formed;a suppressing member that suppresses generation of a strain in the longitudinal recording medium wound by the winding part; andan operation part that operates the suppressing member in a case where the strain in the longitudinal recording medium wound by the winding part is a threshold value or more.2. The winding device according to claim 1 , further comprising:a measurement member that measures a projection height of a projection portion formed on a surface the longitudinal recording medium;a diameter calculation part that calculates a wound diameter of the winding part at which the longitudinal recording medium is wound; anda strain calculation part that calculates the strain in the longitudinal recording medium wound by the winding part from a measurement result of the measurement member and a calculation result of the diameter calculation part.3. The winding device according to claim 1 , further comprising:a projection portion calculation part that calculates a projection height of a projection portion formed on a surface of the longitudinal recording medium;a diameter calculation part that calculates a wound diameter of the winding part at which the longitudinal recording medium is wound; anda strain calculation part that calculates the strain in the longitudinal recording medium wound by the winding part from a calculation result of the projection portion calculation part and a calculation result of the diameter ...

Image forming apparatus

An image forming apparatus includes an image forming unit to form an image on a sheet, an intermediate processing tray where sheets conveyed through a first conveyance path are stacked as a sheet bundle, a sensor disposed at a second conveyance path to detect a conveyed sheet bundle, and a stacking tray in which sheets discharged through a discharging path diverging from the first conveyance path are stacked. In response to a sensor detected paper jam, a control unit determines the intermediate processing tray as the discharging destination for a sheet among the remaining sheets, and determines the stacking tray as the discharging destination for a sheet among the remaining sheets. After the paper jam is cleared, the control unit causes execution of bookbinding and cutting for a sheet bundle including the remaining sheets stacked in the intermediate processing tray.

Sheet feeder and image forming apparatus

A sheet feeder including: a housing including a mount portion that receives recording media; an open-close portion that is disposed on an upper surface of the housing to close the mount portion and rotates about a first hinge to open or close a mount space over the mount portion; and a manual insertion portion at least part of which is disposed on the open-close portion to receive manually inserted recording media, the manual insertion portion being rotatable about the first hinge or a second hinge disposed parallel to the first hinge to rotate upward from a position where the manual insertion portion overlaps the open-close portion.

RECORDING MEDIUM TAKE-UP MECHANISM AND PRINTER

A recording medium take-up mechanism and a printer prevent a recording medium having been printed from easily twisting when winding the recording medium. A printer includes a platen supporting recording paper that is delivered frontward during printing, a take-up shaft on which the recording paper having been printed is wound, a tension bar configured to impart tension to the recording paper by pressing a portion of the recording paper that is between the platen and the take-up shaft, a support arm supporting the tension bar, and a support shaft pivotably supporting the support arm. A center of the support shaft is positioned inside a contour of the take-up shaft, as viewed in an axial direction of the support shaft. 111-. (canceled)12. A printer comprising:a platen supporting a sheet-shaped recording medium that is delivered frontward during printing;a take-up shaft on which the recording medium having been printed is wound;a tension bar configured to impart tension to the recording medium by pressing a portion of the recording medium between the platen and the take-up shaft;a support arm supporting the tension bar; anda support shaft pivotably supporting the support arm; whereina center of the support shaft is positioned inside a contour of the take-up shaft as viewed in an axial direction of the support shaft.13. The printer according to claim 12 , wherein a position of the center of the support shaft and a position of a center of the take-up shaft are in agreement or substantially in agreement with each other as viewed in the axial direction of the support shaft.14. The printer according to claim 12 , wherein:the take-up shaft and the tension bar extend transversely;the tension bar is disposed frontward relative to the platen and frontward relative to the take-up shaft; andthe support shaft is positioned rearward relative to a portion of the recording medium that is in contact with the tension bar.15. The printer according to claim 12 , wherein:the take-up shaft ...

Transport device, processed product producing method, and transport control program

A transport device includes a transport section, a processing section, a detector, and a transport controller. The transport section transports a sheet. The processing section performs processing on the sheet. The detector detects a movement of a pointing instrument on a detection surface of the detector itself. The transport controller allows the sheet to be transported by a distance corresponding to the movement of the pointing instrument, and in a direction corresponding to the movement of the pointing instrument.

POSITIVE PRESSURE WEB WRINKLE REDUCTION SYSTEM

A web-guiding system for guiding a web of media travelling from upstream to downstream along a transport path in an in-track direction, including a web-guiding structure and an air source. The web-guiding structure includes an exterior surface having a pattern of recesses formed into the exterior surface, wherein the web of media travels past the web-guiding structure with a first side of the web of media contacting at least some non-recessed portions of the exterior surface of the web-guiding structure. The air source provides an air flow between the first side of the web of media and the exterior surface of the web-guiding structure thereby providing a lifting force to lift portions of the web of media overlying the recesses away from the exterior surface of the web-guiding structure. 1. A web-guiding system for guiding a web of media travelling from upstream to downstream along a transport path in an in-track direction , the web of media having a first side and an opposing second side , comprising:a web-guiding structure including an exterior surface having a pattern of recesses formed into the exterior surface, wherein the web of media travels past the web-guiding structure with the first side of the web of media contacting at least some non-recessed portions of the exterior surface of the web-guiding structure; andan air source for providing an air flow between the first side of the web of media and the exterior surface of the web-guiding structure thereby producing a lifting force to lift portions of the web of media overlying the recesses away from the exterior surface of the web-guiding structure.2. The web-guiding system of wherein a direction of travel of the web of media is redirected by at least 2 degrees as it travels along the transport path past the web-guiding structure.3. The web-guiding system of wherein the exterior surface of the web-guiding structure is curved.4. The web-guiding system of wherein the air source is located upstream of the web- ...

NEGATIVE PRESSURE WEB WRINKLE REDUCTION SYSTEM

A web-guiding system for guiding a web of media travelling from upstream to downstream along a transport path in an in-track direction, including a web-guiding structure and a vacuum system. The web-guiding structure includes an exterior surface having a pattern of recesses formed into the exterior surface, wherein the web of media travels past the web-guiding structure with a first side of the web of media contacting at least some non-recessed portions of the exterior surface of the web-guiding structure. The vacuum system is positioned such that the web of media passes between the web-guiding structure and the vacuum system, the vacuum system being adapted to provide a vacuum force to pull the second side of the web of media toward the vacuum system, thereby lifting portions of the web of media overlying the recesses away from the exterior surface of the web-guiding structure. 1. A web-guiding system for guiding a web of media travelling from upstream to downstream along a transport path in an in-track direction , the web of media having a first side and an opposing second side , comprising:a web-guiding structure including an exterior surface having a pattern of recesses formed into the exterior surface, wherein the web of media travels past the web-guiding structure with the first side of the web of media contacting at least some non-recessed portions of the exterior surface of the web-guiding structure; anda vacuum system positioned such that the web of media passes between the web-guiding structure and the vacuum system, the vacuum system being adapted to provide a vacuum force to pull the second side of the web of media toward the vacuum system, thereby lifting portions of the web of media overlying the recesses away from the exterior surface of the web-guiding structure.2. The web-guiding system of wherein a direction of travel of the web of media is redirected by at least 2 degrees as it travels along the transport path past the web-guiding structure.3. The ...

MEDIUM LOADING DEVICE AND IMAGE FORMING APPARATUS

A medium loading device that is arranged adjacent to an image forming apparatus that includes a medium supply roller that carries a medium, includes a medium guide part that has a guide surface along which the medium is guided toward the medium supply roller, and is arranged on an upstream side of the medium supply roller in a medium carrying direction; a medium end contact part that is arranged on an upstream side of the medium guide part in the medium carrying direction, is positioned below the guide surface of the medium guide part in the vertical direction, and is configured to contact an medium upstream end of the medium so that a portion of the medium is upwardly supported when the medium upstream end of the medium contacts the medium end contact part. 1. A medium loading device that is arranged adjacent to an image forming apparatus that includes a medium supply roller that carries a medium , comprising: has a guide surface along which the medium is guided toward the medium supply roller, and', 'is arranged on an upstream side of the medium supply roller in a medium carrying direction;, 'a medium guide part that'} is arranged on an upstream side of the medium guide part in the medium carrying direction,', 'is positioned below the guide surface of the medium guide part in the vertical direction, and', 'is configured to contact an medium upstream end of the medium so that a portion of the medium is upwardly supported when the medium upstream end of the medium contacts the medium end contact part., 'a medium end contact part that'}2. The medium loading device according to claim 1 , further comprising:a medium supporting part that is arranged between the medium guide part and the medium end contact part in the medium carrying direction, and that protrudes upwardly, whereinthe medium supporting part includes a contact part at a top of the medium guide part so that the medium, which is to be supplied from the medium supply roller, is lifted by the medium supporting ...

Sheet conveying apparatus

A conveying apparatus includes: a first roller and a second roller configured to convey a print sheet while nipping the print sheet at a nip pressure; an adjustor supporting the first roller and the second roller in a manner capable of adjusting an inter-axial distance between the first roller and the second roller, the adjustor being configured to apply a biasing force biasing the second roller toward the first roller and capable of adjusting the biasing force; and a controller configured to control the nip pressure by driving the adjustor to adjust the biasing force.

DETACHER FOR ROLL AND IMAGE FORMING APPARATUS INCLUDING SAME

A detacher for detaching from a roll a spool supporting the roll, and the detacher includes a detacher body; and a plurality of hooking parts disposed on a circumference of the detacher body to engage a plurality of projections of a flange disposed at an end of the spool. With the hooking parts engaging the projections of the flange, the roll and the detacher are relatively displaced so that the spool is detached from the roll. 1. A detacher for detaching from a roll a spool supporting the roll , the detacher comprising:a detacher body; anda plurality of hooking parts disposed on a circumference of the detacher body to engage a plurality of projections of a flange disposed at an end of the spool,wherein, with the hooking parts engaging the projections of the flange, the roll and the detacher are relatively displaced so that the spool is detached from the roll.2. The detacher as claimed in claim 1 , wherein the hooking parts and the detacher body define a gap dimensioned to accommodate the projections of the flange.3. The detacher as claimed in claim 1 , further comprising a gear disposed at the end of the spool claim 1 ,wherein the detacher body comprises a hollow portion dimensioned to accommodate the gear.4. The detacher as claimed in claim 1 , further comprising a flange having a diameter larger than a diameter of an outer circumference of the plurality of hooking parts of the detacher body.5. An image forming apparatus comprising:the spool to support the roller; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the detacher as claimed in to detach the spool form the roll.'}6. The image forming apparatus as claimed in claim 5 , wherein the detacher is disposed at a bottom portion of an apparatus body of the image forming apparatus.7. The image forming apparatus as claimed in claim 5 , wherein the detacher is disposed with the hooking parts facing upward.8. The image forming apparatus as claimed in claim 5 , wherein the detacher is movable. The present ...

PRINTER HAVING FRONT-END PAPER FEEDING AND FRONT-END PAPER OUTPUTTING AND BEING CAPABLE OF CHANGING PAPER DISCHARGE PATH

A printer having front-end paper feeding and front-end paper outputting and being capable of changing a paper discharge path, said printer comprising a housing () and a paper discharge unit (), the paper discharge unit () comprising a first paper discharge mechanism () and a paper discharge channel () which consists of upper and lower casings (), a front end surface of the housing () being a vertical flat surface A, a paper feed port () and a paper output port () being horizontally arranged on the flat surface A, the paper feed port () being located beneath the paper output port (), the paper discharge channel () at the front of the first paper discharge mechanism () being provided with a paper conveyance system capable of changing a paper discharge path. 1. Printer having front-end paper feeding and front-end paper outputting and being capable of changing paper discharge path , comprising a shell and a paper discharge unit , wherein the paper discharge unit comprises a first paper discharge mechanism and a paper discharge channel composed of an upper shell body and a lower shell body , and the printer is characterized in that the front end face of the shell is a vertical plane A , a paper inlet and a paper outlet are horizontally formed in the plane A , the paper inlet is located under the paper outlet , and a paper discharge path switchable paper conveying system is arranged in the portion of the paper discharge channel in front of the first paper discharge mechanism ,{'b': 1', '2, 'wherein the paper conveying system comprises a second paper discharge mechanism, a third paper discharge mechanism and a paper guide plate; the first paper discharge mechanism, the second paper discharge mechanism, and the third paper discharge mechanism are arranged in sequence; a paper discharge channel B, close to the paper outlet, is arranged between the third paper discharge mechanism and the shell; the first paper discharge mechanism, the second paper discharge mechanism, and the ...

SHEET HANDLING APPARATUS WITH ROTARY DRUM

A sheet handling apparatus for a printing system includes a rotary drum having an inner chamber circumferentially surrounded by an outer peripheral wall with perforations formed therein. By means of sucking an air flow through the perforations of the drum to a suction system, sheets are attracted to the peripheral wall of the drum. A stationary shutter member is positioned inside the inner chamber for blocking the flow of air through the perforations when they pass, with the rotation of the drum, through a first predetermined angular range. The shutter member includes protrusions while the rotary drum includes recesses for receiving the protrusions, such that a meandering air flow passage is formed between the shutter member and the rotary drum. As such, friction between the rotary drum and the stationary shutter member is reduced, thereby reducing the power consumption of the suction system. 1. A sheet handling apparatus comprising:a rotary drum having an inner chamber circumferentially surrounded by an outer peripheral wall with perforations formed therein;a suction system for controlling a flow of air through the perforations of the drum, thereby to attract sheets to the peripheral wall of the drum; anda shutter member positioned inside the inner chamber for blocking the flow of air through the perforations when they pass, with the rotation of the drum, through a first predetermined angular range,wherein the radially outward surface of the shutter member comprises a plurality of protrusions and a radially inward surface of the rotary drum comprises plurality of recesses for receiving the protrusions, such that a meandering air flow passage is formed between the shutter member and the rotary drum.2. The apparatus according to claim 1 , wherein the meandering air flow passage forms an air flow resistance element to prevent substantial amounts of air from flowing from inside the shutter member into the inner chamber of the rotary drum.3. The apparatus according to ...

Image forming apparatus

An image forming apparatus includes: a transport member that transports a medium; a storage that is disposed below the transport member in a gravitational direction, and that stores the medium which is delivered by the transport member and falls into the storage; a supporter that is provided in the storage, and that has an upper end disposed below the transport member in a gravitational direction, and that allows the medium to be stored with a front end of the medium in a discharge direction matching a lower end of the medium in a gravitational direction; and a guidance member that is disposed in the supporter with the medium interposed between the guidance member and the supporter, and that guides the medium which falls to the supporter.

IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND SHEET-FEEDING APPARATUS

Provided is an image forming apparatus including a manual feed tray for placing a sheet subjected to image formation, a sheet sensor configured to detect whether or not the sheet is placed on this manual feed tray, a pickup roller configured to feed the sheet placed on the manual feed tray, and a controller. When a size of a sheet to be fed is designated by a user, and it is determined that the sheet is placed, the controller causes at least one of the pickup roller and the manual feed tray to start movement to a position of enabling the pickup roller to feed the placed sheet. 1. An image forming apparatus , comprising:a manual feed tray on which a sheet subjected to image formation is placed;a determining unit configured to determine whether the sheet is placed on the manual feed tray or not;a sheet-feeding unit configured to feed the sheet placed on the manual feed tray; anda controller,wherein, in a case where a size of a sheet to be placed on the manual feed tray is designated by a user in advance and the determining unit determines that the sheet is placed, the controller causes at least one of the sheet-feeding unit and the manual feed tray to start movement so that the sheet-feeding unit and the manual feed tray approach to each other.2. An image forming apparatus according to claim 1 , wherein the controller causes the at least one of the sheet-feeding unit and the manual feed tray to be moved to a position of enabling the sheet-feeding unit to feed the placed sheet.3. An image forming apparatus according to claim 1 , further comprising a size detection unit configured to detect a size of a sheet placed on the manual feed tray claim 1 ,wherein the controller causes the movement to be started when the detected size and the designated size are matched.4. An image forming apparatus according to claim 3 , wherein the controller causes the movement of the sheet-feeding unit to be prevented from being started when the detected size and the designated size do not ...

RETAINING MEMBER AND IMAGE FORMING APPARATUS INCLUDING SAME

A retaining member has annular inner and outer circumferential portions, a connection portion, engagement projections, a slit, a grip portion, a first inclined surface, and a second inclined surface. The engagement projections projects from a shaft-facing surface of the inner circumferential surface. The slit is formed in the inner circumferential portion. The grip portion projects outward in the radial direction from an outer rim of the outer circumferential portion. The first inclined surface is formed at an upstream-side end part of the grip portion with respect to a direction of fitting to the shaft to be inclined outward in the radial direction from upstream side to downstream side in the fitting direction. The second inclined surface is formed at a downstream-side end part of the grip portion to be inclined outward in the radial direction from downstream side to upstream side in the fitting direction. 1. A retaining member that is fitted to an end part of a shaft to prevent detachment of the shaft from a holding member or to prevent detachment of a rotary body provided around the shaft , and that is integrally formed of an elastically deformable material , the retaining member comprising:an inner circumferential portion which is annular and faces the end part of the shaft supported by the holding member;an outer circumferential portion which is annular and arranged outside the inner circumferential portion in a radial direction;a connection portion which connects the inner circumferential portion and the outer circumferential portion to each other in the radial direction;a plurality of engagement projections which project from a shaft-facing surface of the inner circumferential portion, the shaft-facing surface facing the shaft, and which engage with an engagement groove formed in an outer circumferential surface of the shaft;a slit which is formed at one or more positions in the inner circumferential portion so as to cut the inner circumferential portion in ...

ROLL-UP APPARATUS

A roll-up apparatus for rolling up a continuous sheet into a roll shape, comprises a tension generation unit configured to generate a changeable tension to the continuous sheet; and a control unit configured to control the tension generation unit based on a roll-up condition of the continuous sheet. 1. A roll-up apparatus for rolling up a continuous sheet into a roll shape , comprising:a tension generation unit configured to generate a changeable tension to the continuous sheet; anda control unit configured to control the tension generation unit based on a roll-up condition of the continuous sheet.2. The apparatus according to claim 1 , wherein the roll-up condition includes at least one of a roll-up direction claim 1 , a sheet type claim 1 , and a sheet width of the continuous sheet claim 1 , and a diameter of the roll.3. The apparatus according to claim 1 , further comprising a conveyance unit configured to convey the continuous sheet claim 1 ,wherein the tension generation unit winds the continuous sheet and generates the tension to the continuous sheet between the conveyance unit and the tension generation unit, andthe control unit controls the tension generation unit in accordance with a timing at which the conveyance unit conveys the continuous sheet.4. The apparatus according to claim 3 , wherein the conveyance unit repeats conveyance and stop of the continuous sheet claim 3 , andthe control unit has a synchronous mode that causes the tension generation unit to generate the tension in synchronism with the conveyance and an asynchronous mode that causes the tension generation unit to generate the tension without synchronism with the conveyance5. A printing apparatus comprising:a printing unit configured to perform printing on a continuous sheet;a conveyance unit configured to convey the continuous sheet;a roll-up unit including a roll unit configured to roll up the continuous sheet and a roll driving unit configured to rotate and drive the roll unit, and ...

IMAGE FORMING APPARATUS INCLUDING DISCHARGE UNIT

An image forming apparatus includes a discharge unit, a discharge roller, a pressing member, and a reinforcing frame. The discharge unit includes a guide member that forms a discharge path that guides a sheet member to a sheet discharge port. The discharge roller discharges the sheet member to outside from the sheet discharge port. The pressing member projects from the guide member toward the discharge path, and contacts and presses the sheet member that is passing through the discharge path. The reinforcing frame, formed from a metal plate material, is made conductive with a reference potential portion of the apparatus main body and reinforces the discharge unit by being, together with the discharge unit, fixed to the apparatus main body in a state of covering a part of the guide member to which the pressing member is attached. 1. An image forming apparatus comprising:a discharge unit including a guide member that forms a discharge path that guides a sheet member after image formation to a sheet discharge port, the discharge unit being attached to an apparatus main body;a discharge roller disposed in a vicinity of the sheet discharge port of the discharge unit, and configured to discharge the sheet member in the discharge path to outside from the sheet discharge port;a pressing member attached to the guide member more in an upstream side than the sheet discharge port in a sheet member discharge direction, the pressing member projecting from the guide member toward the discharge path and configured to contact and press the sheet member that is passing through the discharge path; anda reinforcing frame formed from a metal plate material, made conductive with a reference potential portion of the apparatus main body, and configured to reinforce the discharge unit by being, together with the discharge unit, fixed to the apparatus main body in a state of covering a part of the guide member to which the pressing member is attached.2. The image forming apparatus according ...

METHOD FOR MANUFACTURING CYLINDRICAL MEMBER, CYLINDRICAL MEMBER, AND IMAGE FORMING APPARATUS

A method for manufacturing a cylindrical member includes: fixing an end portion of an elastic body to an end portion, in a circumferential direction, of a recess provided in a cylindrical body having a substantially circular shape in cross section, the recess extending along an axial direction of the cylindrical body; and winding the elastic body around the cylindrical body while pressing the elastic body using a pressing member. 1. A method for manufacturing a cylindrical member , the method comprising:fixing an end portion of an elastic body to an end portion, in a circumferential direction, of a recess provided in a cylindrical body having a substantially circular shape in cross section, the recess extending along an axial direction of the cylindrical body; andwinding the elastic body around the cylindrical body while pressing the elastic body using a pressing member.2. The method according to claim 1 , whereinin the winding, the pressing member presses the elastic body at a pressure higher than a pressing force of a rotating member that is in contact with the elastic body while rotating inside an apparatus body.3. The method according to claim 1 , further comprising:pulling out the cylindrical body from an apparatus body before the fixing, whereinthe winding is performed using the pressing member which is disposed outside the apparatus body.4. The method according to claim 2 , further comprising:pulling out the cylindrical body from the apparatus body before the fixing, whereinthe winding is performed using the pressing member which is disposed outside the apparatus body.5. The method according to claim 2 , whereinthe winding is performed using the rotating member as the pressing member while the cylindrical body is still disposed inside the apparatus body.6. A cylindrical member comprising:a cylindrical body having a substantially circular shape in cross section, the cylindrical body having a recess along an axial direction thereof; and{'claim-ref': {'@idref': ...

Recording system, recording device, and control method

A recording system includes a recording device including a recording unit that performs recording onto a medium, a transporting belt that includes an adhesive layer and transports the medium stuck on the adhesive layer, a drive unit that drives the transporting belt, a control unit that includes a detection unit for detecting a load current flowing in the drive unit and that controls the drive unit. The recording system further includes a peeling device that peels the medium from the transporting belt, and a notification device that provides a notification. The control unit causes the notification device to provide a notification on a time to replace the adhesive layer, based on a detection result of the detection unit.

SHEET CONVEYING DEVICE, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS

A sheet conveying device includes a sheet container, a separation feeder, a plurality of conveyance drivers, a multifeed detector, a sheet detector, and a conveyance controller. The conveyance drivers are driven to convey a sheet to a conveyance completion position on a sheet conveyance path. The multifeed detector detects occurrence of a multifeed on the conveyance path. The sheet detector detects presence or absence of the sheet at a sheet detection point on the conveyance path. The conveyance controller controls the conveyance drivers to be continuously driven until a preceding sheet preceding multifed sheets is conveyed to the conveyance completion position after the multifeed detector detects the occurrence of the multifeed. The conveyance controller controls the conveyance drivers to stop in a period in which at least one of the multifed sheets is present at the sheet detection point after the preceding sheet is conveyed to the conveyance completion position. 1. A sheet conveying device comprising:a sheet container to load sheets;a separation feeder to separate and feed a sheet from the sheets on the sheet container;a plurality of conveyance drivers driven together to convey the sheet to a conveyance completion position on a sheet conveyance path;a multifeed detector to detect occurrence of a multifeed on the sheet conveyance path;a sheet detector to detect presence or absence of the sheet at a sheet detection point on the sheet conveyance path; anda conveyance controller to control the plurality of conveyance drivers to be continuously driven until a preceding sheet preceding multifed sheets is conveyed to the conveyance completion position after the multifeed detector detects the occurrence of the multifeed, and to control the plurality of conveyance drivers to stop in a period in which at least one of the multifed sheets is present at the sheet detection point after the preceding sheet is conveyed to the conveyance completion position.2. The sheet conveying ...

MEDIUM DETECTION MECHANISM, MEDIUM DETECTION METHOD, AND PRINTING APPARATUS

A medium detection mechanism includes a medium guide that holds a medium and an optical sensor including an irradiation section that emits irradiation light to the medium guide and a light receiving section that receives reflected light. An amount of received light that is received by the light receiving section from among reflected light of external light that enters the medium guide and reflected light of the irradiation light is smaller than or equal to a predetermined value. 1. A medium detection mechanism comprising:a medium guide that holds a medium; andan optical sensor including an irradiation section that emits irradiation light to the medium guide and a light receiving section that receives reflected light,wherein an amount of received light that is received by the light receiving section from among reflected light of external light that enters the medium guide and reflected light of the irradiation light is smaller than or equal to a predetermined value.2. The medium detection mechanism according to claim 1 , whereinan area where the medium guide is irradiated with the irradiation light and the external light is a glossy surface.3. The medium detection mechanism according to claim 1 , whereinthe amount of received light that is received by the light receiving section when the medium is held by the medium guide is greater than that when the medium is not held by the medium guide.4. The medium detection mechanism according to claim 1 , further comprising:a housing,wherein regular reflected light of the irradiation light irradiated to the medium guide is not emitted to outside of the housing.5. The medium detection mechanism according to claim 4 , whereinthe housing covers the optical sensor and at least a part of the medium guide.6. A printing apparatus comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the medium detection mechanism according to .'}7. A medium detection method of the medium detection mechanism according to claim 1 , the medium ...

Sheet folding apparatus, image forming apparatus, and image forming system

A sheet folding apparatus includes: a folded part forming unit that forms a folded part on the sheet by nipping a curved portion formed on a part of the sheet between an upstream first sheet conveying unit and a downstream second sheet conveying unit by holding a part of the sheet by the first sheet conveying unit and applying conveying force to the sheet to reverse the sheet upstream by the second sheet conveying unit; and a sheet leading end detection unit disposed downstream of or at almost same position as the second sheet conveying unit. The sheet is conveyed based on a detection timing of the sheet leading end detection unit such that the leading end of the sheet protrudes by a predetermined protrusion amount from the second sheet conveying unit immediately before applying conveying force to the sheet to reverse the sheet.

Sheet aligning mechanism

A sheet aligning mechanism includes first and second conveyance mechanisms disposed on first and second sides of a sheet conveyance path, respectively. A nip is formed between the first and second conveyance mechanisms. The first conveyance mechanism includes a first roller, a second roller, and a first conveyance belt wound around the first and second rollers. The first and second rollers are configured to rotate in a first direction along a sheet conveying direction for sheet conveyance, and stop rotation or rotate in a second direction opposite to the first direction for sheet alignment. The first conveyance belt includes an extended region between the first and second rollers in an extending direction inclined with respect to the sheet conveying direction, such that a width of the sheet conveyance path becomes narrower towards the nip in the sheet conveying direction.

Transport device

Provided is a transport device including a first transport member that transports a sheet-shaped medium in a transport direction, a transport path that is formed by a first guiding member which guides the medium in the transport direction and a second guiding member which guides the medium in the transport direction, at least one of the first guiding member and the second guiding member including a widened part on a downstream side of a processing position and on an upstream side of a second transport member, a pressing member that presses the medium to the first guiding member, a processing unit that performs a processing on the medium which is transported in the transport path, and a second transport member that transports the medium, which is guided by the first guiding member and the second guiding member, in the transport direction.

SHEET FEEDER, IMAGE RECORDING APPARATUS HAVING THE SHEET FEEDER, AND COMPUTER-READABLE MEDIUM THEREFOR

A sheet feeder includes a controller configured to perform a driving process of supplying a motor with an electric current to rotate a roller, perform a stopping process of stopping supplying the electric current in response to determining that the motor has not rotated before a second sensor detects a sheet, when an accumulated rotational quantity of the roller is less than a threshold, set a retry upper limit to a first value, the accumulated rotational quantity being detected by a first sensor in the driving process performed for a first time, when the accumulated rotational quantity of the roller is equal to or more than the threshold, set the retry upper limit to a second value more than the first value, and repeatedly perform the driving process and the stopping process until a number of retries reaches the retry upper limit or until the second sensor detects the sheet. 1. A sheet feeder comprising:a tray having a supporter configured to support a sheet placed on the tray;a roller disposed in a position contactable with the supporter, the roller being configured to, when rotating in a particular direction, feed the sheet supported by the supporter, in a conveyance direction along a conveyance path;a motor configured to generate a driving force to rotate the roller in the particular direction;a first sensor configured to detect a rotational quantity of the roller;a second sensor configured to detect that the sheet reaches a particular position on the conveyance path; and [ 'supplying the motor with an electric current;', 'a driving process comprising, 'in response to determining that the motor has not rotated before the second sensor detects that the sheet reaches the particular position, stopping supplying the electric current to the motor;', 'a stopping process comprising, when an accumulated rotational quantity of the roller is less than a threshold, setting a retry upper limit to a first value, wherein the accumulated rotational quantity is detected by the ...

MATERIAL CONVEYOR, TRANSFER DEVICE INCORPORATING THE MATERIAL CONVEYOR, IMAGE FORMING APPARATUS INCORPORATING THE TRANSFER DEVICE, METHOD OF POSITION CONTROL OF ROTARY BODIED, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

A material conveyor, included in a transfer device of an image forming apparatus and configured to use position control of rotary bodies, includes a first rotary body and a second rotary body disposed opposing each other in an opposing region through which a material is conveyable, and a contact and separation device configured to cause at least a surface, of at least one of the first rotary body and the second rotary body to move, between a separated position and a contact position. The contact and separation device is configured to cause the at least the surface to move from the separated position to the contact position, at a first speed, and then to move at a second speed slower than the first speed. A method of position control includes moving at least the surface at different speeds or based on a distance relative to a threshold distance. 1. A material conveyor comprising:a first rotary body;a second rotary body, disposed opposing the first rotary body in an opposing region through which a material is conveyable; anda contact and separation device configured to cause at least a surface, of at least one of the first rotary body and the second rotary body to move, between a separated position at which the first rotary body and the second rotary body are separated from each other and a contact position at which both the first rotary body and the second rotary body are configured to contact and convey the material,the contact and separation device being configured to cause the at least the surface of the at least one of the first rotary body and the second rotary body to move from the separated position to the contact position at:a first speed from the separated position to a position between the separated position and the contact position; anda second speed, relatively slower than the first speed, from the position, between the separated position and the contact position, to the contact position after movement at the first speed.2. The material conveyor according ...

ATTACHMENT, FEED DEVICE, AND IMAGE FORMING APPARATUS

An attachment is attachable to and detachable from a sheet stacking board. The attachment includes an end fence configured to restrict a position of a trailing end of a sheet in a conveying direction. The end fence includes a facing surface facing the trailing end of the sheet. The facing surface includes an inclined surface inclined with respect to a vertical direction of a stacking surface on which the sheet is stacked, such that a higher part of the facing surface is located more upstream in the sheet conveying direction. 1. An attachment attachable to and detachable from a sheet stacking board , the attachment comprising:an end fence configured to restrict a position of a trailing end of a sheet in a conveying direction, whereinthe end fence includes a facing surface facing the trailing end of the sheet, the facing surface comprising an inclined surface inclined with respect to a vertical direction of a stacking surface on which the sheet is stacked, such that a higher part of the facing surface is located more upstream in the sheet conveying direction.2. The attachment according to claim 1 , wherein the end fence includes an elastic deformable portion elastically deformable in the sheet the conveying direction.3. The attachment according to claim 2 , wherein the elastic deformable portion of the end fence extends to a lower end of the end fence.4. The attachment according to claim 1 , wherein the end fence includes a eaves-shaped portion.5. The attachment according to claim 4 , wherein the eaves-shaped portion is disposed in an elastic deformable portion of the end fence claim 4 , the elastic deformable portion being elastically deformable in the sheet conveying direction.6. The attachment according to claim 1 , further comprising:a stacking part having a recess on a sheet stacking surface, whereina rib is disposed in the recess.7. The attachment according to claim 1 , wherein a weight is attached to the attachment.8. A feed device comprising: a sheet stacking ...

Sheet discharge device and image forming apparatus including the same

A sheet discharge device of the present invention includes discharge rollers configured to transport a sheet in a predetermined transport direction and to discharge the sheet to a discharge tray, and an upper discharge tray disposed above the discharge tray with a space being interposed therebetween. A bottom face of the upper discharge tray that faces the discharge tray includes a guide rib extending in an oblique direction inclined relative to the transport direction.

SHEET-TRANSPORTING ELEMENT WITH INTEGRATED BLOCKING SLIDER FOR SUCTION OPENINGS

A sheet-transporting element includes suction openings for holding print sheets, longitudinal sliders including air passages, and transverse sliders including air passages. The longitudinal sliders and the transverse sliders are disposed in a cross-wise configuration and are movable into different positions corresponding to various sheet formats in the positions blocking selected ones of the suction openings. 1. A sheet-transporting element , comprising:suction openings for holding print sheets;longitudinal sliders including air passages; andtransverse sliders including air passages;said longitudinal sliders and said transverse sliders being disposed in a crosswise configuration and being movable into switching positions corresponding to different sheet formats for blocking different ones of said suction openings.2. The sheet-transporting element according to claim 1 , which further comprises a first actuating drive for switching said longitudinal sliders together.3. The sheet-transporting element according to claim 2 , wherein said first actuating drive is a first motor.4. The sheet-transporting element according to claim 2 , which further comprises:a first spindle drive connected to said first actuating drive; anda first longitudinal slider switch and a second longitudinal slider switch supported on said first spindle drive for linear movement.5. The sheet-transporting element according to claim 4 , wherein said first spindle drive has a right-hand thread screwed into said first longitudinal slider switch and a left-hand thread screwed into said second longitudinal slider switch.6. The sheet-transporting element according to claim 4 , which further comprises cam followers disposed on said longitudinal sliders claim 4 , said first longitudinal slider switch and said second longitudinal slider switch including switching cams entering into switching contact with said cam followers.7. The sheet-transporting element according to claim 1 , which further comprises a ...

MEDIA TRANSPORT JAM PREVENTION

According to an example, an apparatus to prevent media transport jams may include an actuator to load and advance a media within a media path width. The apparatus may also include a first sensor and a second sensor to detect respective edges of the media, in which the first sensor and the second sensor may be positioned outside of a media action area and on opposite sides of the media path width. The apparatus may further include a controller to prevent the actuator from advancing the media along the media path in response to a detection of one or both of the first edge of the media by the first sensor and the second edge of the media by the second sensor. 1. An apparatus to prevent media transport jams , comprising:an actuator to load and advance a media within a media path width;a first sensor to detect a first edge of the media;a second sensor to detect a second edge of the media, wherein the first sensor and the second sensor are positioned outside of a media action area and on opposite sides of the media path width; anda controller to prevent the actuator from advancing the media along the media path in response to a detection of one or both of the first edge of the media by the first sensor and the second edge of the media by the second sensor.2. The apparatus of claim 1 , wherein responsive to the detection of one of the first edge of the media and the second edge of the media claim 1 , the controller is to determine that an offset loading error of the media has occurred.3. The apparatus of claim 2 , further comprising:a user interface;wherein the controller is to display a message on the user interface with proper media loading procedures responsive to the determination of that the offset loading error has occurred.4. The apparatus of claim 1 , wherein responsive to the detection of both the first edge of the media and the second edge of the media claim 1 , the controller is to determine that a wide media size error of the media has occurred.5. The apparatus ...

Sheet Cutting Machine

When a length in a conveying direction of a margin to be cut off is shorter than a predetermined distance between a cutting part and a second conveying part, a sheet cutting machine feeds a first sheet to the cutting part using a first conveying part while keeping the second conveying part positioned at a conveying path. When the length is equal to or longer than the predetermined distance, the machine feeds the first sheet to the cutting part using the first conveying part after upwardly retracting the second conveying part from the conveying path using a retracting mechanism. 16-. (canceled)7. A sheet cutting machine for cutting a first sheet into second sheets and margins , the machine comprising:a first conveying part arranged to convey the first sheet along a conveying path;a cutting part arranged downstream of and apart from the first conveying part to cut the first sheet in a direction perpendicular to a conveying direction;a sorting unit arranged to remove the margins from the conveying path, the margins being cut off from the first sheet by the cutting part; anda control unit configured to control the first conveying part, the cutting part and the sorting unit based on cutting information about cutting of the first sheet,the sorting unit including:a second conveying part arranged downstream of and apart from the cutting part to receive the first sheet from the first conveying part and to convey the second sheets cut off from the first sheet by the cutting part;a retracting mechanism arranged to upwardly retract the second conveying part from the conveying path; anda deflecting plate for deflecting the first sheet to the outside of the conveying path while the first sheet is conveyed by the first conveying part, the deflecting plate being moved together with the second conveying part by the retracting mechanism, whereinwhen a length in the conveying direction of the margin to be cut off is shorter than a predetermined distance between the cutting part and ...

A CONTACTLESS LIQUID APPLICATION APPARATUS AND METHOD

A contact-less liquid application apparatus, and in particular a printing apparatus, for applying a liquid in a contact-less manner on a moving medium. The liquid application apparatus includes a liquid application means configured for applying a liquid on a moving medium, a media transport system configured for moving the medium in a movement direction at a distance of the liquid application means, and a flow control means configured to evacuate at least a portion of the air displaced by the moving of the medium, at least before the medium is in a liquid application position, where the liquid application position is a position in which the liquid application means is applying liquid on the medium. 1. A contact-less liquid application apparatus for applying a liquid in a contact-less manner on a moving medium , said liquid application apparatus comprising:a liquid application means configured for applying a liquid on a moving medium;a media transport system configured for moving the medium in a movement direction at a distance of the liquid application means; anda flow control means configured to evacuate at least a portion of the air displaced by the moving of the medium, at least before the medium is in a liquid application position, said liquid application position being a position in which the liquid application means is applying liquid on the medium.2. The liquid application apparatus of claim 1 , wherein the flow control means is configured to evacuate at least a portion of the air displaced by the moving of the medium in a zone upstream of the liquid application means and/or between the liquid application means and the media transport system.3. The liquid application apparatus of claim 1 , wherein the flow control means is configured to evacuate at least a portion of the air displaced by the moving of the medium in a zone before a front edge of the medium.4. The liquid application apparatus of claim 1 , wherein the flow control means is configured to evacuate ...

CONVEYING DEVICE, IMAGE FORMING APPARATUS INCORPORATING THE CONVEYING DEVICE, AND METHOD OF CONVEYING A MEDIUM

A conveying device includes a sheet conveyor configured to convey a medium in a conveyance direction of the medium, a sheet winder including a winding roller and a winding motor, and circuitry to control the sheet conveyor and the sheet winder. The circuitry is configured to convey the medium intermittently while repeating: causing the sheet conveyor and the sheet winder to convey the loosened medium by a predetermined conveyance amount; rotating the winding motor in a normal direction by a predetermined torque according to an outer winding diameter of the medium to apply a predetermined tension force to the medium; and rotating the winding motor in a reverse direction to loosen the medium by a predetermined slack amount. The circuitry is configured to determine the predetermined tension force according to the width of the medium intersecting with the conveyance direction of the medium. 1. A conveying device comprising:a sheet conveyor configured to convey a medium in a conveyance direction of the medium; a winding roller downstream from the sheet conveyor in the conveyance direction, the winding being configured to wind the medium; and', 'a winding motor configured to rotate the winding roller; and, 'a sheet winder includingcircuitry configured to control an operation performed by the sheet conveyor and an operation performed by the sheet winder, a first operation to cause the sheet conveyor and the sheet winder to convey the medium by a predetermined conveyance amount while the medium is loosened between the sheet conveyor and the sheet winder;', 'a second operation to rotate the winding motor in a normal direction by a predetermined torque according to an outer winding diameter of the medium that is wound around the winding roller, while the sheet conveyor is stopped, to apply a predetermined tension force to the medium between the sheet conveyor and the sheet winder; and', 'a third operation to rotate the winding motor in a reverse direction opposite the normal ...

RECORDING SYSTEM

A recording system includes a first discharge portion that discharges medium recorded on by ejecting ink, a stacking tray configured to have stacked thereon the medium P discharged by the first discharge portion, a raising and lowering mechanism configured to raise and lower the stacking tray, a control unit that controls the raising and lowering mechanism , and an estimation unit configured to estimate weight of the medium P loaded on the stacking tray, wherein the control unit controls the raising and lowering operation of the stacking tray based on the weight of the medium estimated by the estimation unit 1. A recording system comprising:a discharge portion that discharges medium recorded on by ejecting liquid;a stacking portion configured to have stacked thereon the medium discharged by the discharge portion;a raising and lowering unit configured to raise and lower the stacking portion;a control unit configured to control the raising and lowering unit; andan estimation unit configured to estimate weight of the medium stacked on the stacking portion, whereinthe control unit controls a raising and lowering operation of the stacking portion based on the weight of the medium estimated by the estimation unit.2. The recording system according to claim 1 , whereinthe estimation unit estimates the weight of the medium stacked on the stacking portion based on the weight of the medium before the liquid is ejected thereto and an amount of the liquid ejected to the medium.3. The recording system according to claim 1 , whereinwhen the weight of the medium estimated by the estimation unit becomes equal to or greater than a threshold value, the control unit restricts the raising and lowering operation.4. The recording system according to claim 1 , whereinwhen the weight of the medium estimated by the estimation unit becomes equal to or greater than a threshold value, the control unit determines a remaining number of stackable sheets that are stackable on the stacking portion ...

MEDIUM CONVEYING APPARATUS TO DETERMINE WHETHER OVERLAP DETECTION IS VALID OR INVALID BASED ON POSITION OF END OF MEDIUM

A medium conveying apparatus includes a conveying roller to convey a medium, an end detection sensor for detecting a position of an end of the medium conveyed by the conveying roller, an overlap detection sensor for detecting an overlap of the medium conveyed by the conveying roller in a detection area, and a processor to determine whether an overlap detection is valid or invalid based on a positional relationship between the position of the end of the medium detected by the end detection sensor and the detection area, and execute an abnormality processing for multi-feed based on a detection result by the overlap detection sensor when it is determined that the overlap detection is valid. 1. A medium conveying apparatus comprising:a conveying roller to convey a medium;an end detection sensor for detecting a position of an end of the medium conveyed by the conveying roller;an overlap detection sensor for detecting an overlap of the medium conveyed by the conveying roller in a detection area; and determine whether an overlap detection is valid or invalid based on a positional relationship between the position of the end of the medium detected by the end detection sensor and the detection area, and', 'execute an abnormality processing for multi-feed based on a detection result by the overlap detection sensor when it is determined that the overlap detection is valid., 'a processor to'}2. The medium conveying apparatus according to claim 1 , whereinthe overlap detection sensor includes a receiver to detect a transmission intensity of an ultrasonic wave transmitted through the medium, and whereinthe detection area is an area on the medium passing over the receiver.3. The medium conveying apparatus according to claim 1 , whereinthe end detection sensor is an imaging device to generate an input image acquired by imaging the medium, and whereinthe processor identifies the position of the end of the medium based on the input image.4. The medium conveying apparatus according to ...

MEDIUM CONVEYING APPARATUS TO EXECUTE ABNORMALITY PROCESSING FOR MULTI-FEED BASED ON OVERLAP DETECTION WIDTH

A medium conveying apparatus includes a conveying roller to convey a medium, a width detection sensor for detecting a width of the medium conveyed by the conveying roller in a direction perpendicular to a conveying direction, an overlap detection sensor for detecting an overlap of the medium conveyed by the conveying roller, and a processor to determine whether to execute an abnormality processing for a multi-feed, based on the width of the medium acquired based on a detection result by the width detection sensor and a detection result by the overlap detection sensor. The processor acquires an overlap detection width being a width in which the medium is estimated to overlap in the direction perpendicular to the conveying direction, based on the detection result by the overlap detection sensor. The processor executes the abnormality processing when the width of the medium and the overlap detection width are equal. 1. A medium conveying apparatus comprising:a conveying roller to convey a medium;a width detection sensor for detecting a width of the medium conveyed by the conveying roller in a direction perpendicular to a conveying direction;an overlap detection sensor for detecting an overlap of the medium conveyed by the conveying roller; anda processor to determine whether to execute an abnormality processing for a multi-feed, based on the width of the medium acquired based on a detection result by the width detection sensor and a detection result by the overlap detection sensor, whereinthe processor acquires an overlap detection width being a width in which the medium is estimated to overlap in the direction perpendicular to the conveying direction, based on the detection result by the overlap detection sensor, and whereinthe processor executes the abnormality processing when the width of the medium and the overlap detection width are equal.2. The medium conveying apparatus according to claim 1 , wherein the processor does not execute the abnormality processing when ...

TWO-PART SPINDLE MECHANISM FOR A PRINTER PAPER BUCKET, A PRINTER PAPER BUCKET, AND A PRINTER HAVING A PAPER BUCKET WITH A TWO-PART SPINDLE MECHANISM

Methods and apparatus for supporting a paper roll in a paper bucket of a printer are provided. The paper bucket may comprise a curved base portion for accepting paper rolls of varying widths, two oppositely disposed side walls movably mounted to the curved base portion, and a two-part spring-loaded spindle assembly extending through each of the side walls and adapted to support a paper roll therebetween. Each spindle assembly may comprise a first spring loaded spindle part and a second spring loaded spindle part movably connected to one another. 1. A paper bucket for a printer , comprising:a curved base portion for accepting paper rolls of varying widths;two oppositely disposed side walls movably mounted to the curved base portion;a two-part spring-loaded spindle assembly extending through each of the side walls and adapted to support a paper roll therebetween;each spindle assembly comprising a first spring loaded spindle part and a second spring loaded spindle part movably connected to one another.2. A paper bucket in accordance with claim 1 , wherein the first and second spindle parts of each of the spindle assemblies are movable connected to one another via a pin and hole arrangement.3. A paper bucket in accordance with claim 2 , wherein the first spindle part is arranged below the second spindle part.4. A paper bucket in accordance with claim 3 , wherein:the first spindle part has chamfered bottom and side surfaces, and a flat upper surface; andthe second spindle part has chamfered side surfaces, a flat bottom surface, and a flat upper surface.5. A paper bucket in accordance with claim 4 , wherein:the pin extends from one of the upper surface of the first spindle part or the bottom surface of the second spindle part; andthe hole is arranged in the other of the upper surface of the first spindle part or the bottom surface of the second spindle part.6. A paper bucket in accordance with claim 1 , wherein the first spindle part and the second spindle part of each of ...

Sheet conveyance method, sheet conveyance apparatus, and image forming system

A sheet conveyance method using a sheet conveyance apparatus that includes a conveyance path and a plurality of alignment members disposed along the conveyance path, the method includes: determining a set of alignment members to be operated based on a length of the paper sheet from among the plurality of alignment members; and aligning the paper sheet conveyed on the conveyance path using the determined set of alignment members.

Image forming apparatus

A sheet stacking part stacks sheets. A first roller applies a force in a conveyance direction to an uppermost sheet among sheets stacked on the sheet stacking part by rotating in a forward direction. A second roller is separated from the first roller on the downstream side in the conveyance direction. The second roller applies the force in the conveyance direction to the uppermost sheet by rotating in the forward direction. A controller controls rotation of the first roller and the second roller so that a second main operation is performed after a first main operation. The first main operation is an operation of rotating only the first roller of the first roller and the second roller in the forward direction. The second main operation is an operation of rotating both the first roller and the second roller in the forward direction.

LIGHT EMITTING LOAD TRANSDUCERS

An apparatus is disclosed. The apparatus comprises a transducer to transform a load in the housing to an electric current, upon receipt of a load exceeding a load threshold. The apparatus further comprises a light source coupled to the transducer to emit light upon receiving the electric current. 1. An apparatus comprising:a housing, wherein at least part of the housing comprises a wall that enables the transfer of light therethrough;a transducer within the housing to transform a load in the housing to an electric current, upon receipt of a load exceeding a load threshold; anda light source coupled to the transducer to emit light upon receiving the electric current.2. The apparatus of claim 1 , wherein the transducer is a piezoelectric element.3. The apparatus of claim 1 , wherein the housing encloses claim 1 , at least partially claim 1 , a shaft claim 1 , being the transducer co-axially coupled to the housing to transform a load in the shaft to an electric current.4. The apparatus of claim 1 , wherein the transducer is a load cell claim 1 , the apparatus further comprising a circuitry to:detect that a load cell measurement from the load cell exceeds the load threshold; andswitch the light source to emit light upon detecting that the load cell measurement exceeds the load threshold.5. The apparatus of claim 1 , wherein the light source is a Light-Emitting Diode (LED).6. The apparatus of claim 1 , wherein the housing is made claim 1 , at least in part claim 1 , of at least one of Polyamide claim 1 , Acrylonitrile Butadiene Styrene (ABS) claim 1 , Polyurethane claim 1 , Polycarbonate claim 1 , Methacrylate claim 1 , or glass.7. A media conveying system comprising:a media advancement roller to cause advancement of a media located between the media advancement roller and a sensing roller;the sensing roller;a housing that comprises a wall that enables the transfer of light therethrough;a transducer within the housing to transform a force in the housing to an electric ...

Sheet Conveyer and Image Forming Apparatus

A sheet conveyer having a tray, a feed roller, a separator roller, a holder, an arm, a load applier unit, and a cam member is provided. The load applier unit includes a contacting member, a lever, and a contractive spring. One of the contacting member and the arm has one of a protrusion and a hole section, and the other of the contacting member and the arm has the other of the protrusion and the hole section. The holder is maintained in a second holder-position when the protrusion contacts one end of the hole section and applies a weight of the load applier unit to the arm and maintained in the first holder-position when the protrusion contacts the other end of the hole section and applies a load from the contractive spring acting in a direction to press the feed roller against sheets to the arm. 1. A sheet conveyer , comprising:a tray configured to support a plurality of sheets;a feed roller configured to contact one of the plurality of sheets and rotate to convey the one of the plurality of sheets in a conveying direction;a separator roller arranged downstream from the feed roller along the conveying direction, the separator roller being configured to separate the one of the plurality of sheets conveyed by the feed roller from the other of the plurality of sheets;a holder supported swingably to swing about a rotation shaft of the separator roller, the holder supporting the feed roller rotatably;an arm extending along an axial direction of the rotation shaft of the separator roller, the arm being engaged with the holder and configured to swing the holder; a contacting member engaged with the arm;', 'a lever movable in a vertical direction; and', 'a contractive spring engaged with the contacting member and the lever, the contractive spring being configured to contract in a contracting direction to pull the contacting member and the lever to be closer to each other; and, 'a load applier unit configured to apply a load to the holder through the arm, the load applier ...

Sheet Conveyer and Image Forming Apparatus

A sheet conveyer having a load applier unit is provided. The load applier unit includes a contacting member, a lever, a contractive spring, and a preloading member. The lever is movable between a first position, in which the lever being moved in a direction to stretch the contractive spring causes the contractive spring having been stretched by the preloading member to be further stretched to urge the contacting member and causes the load applier unit to apply a load that acts in a direction to press a feed roller against sheets on a tray to the holder, and a second position, in which the contractive spring is maintained in a condition stretched by the preloading member without causing the load applier unit to apply the load that acts in the direction to press the feed roller against the sheets on the tray to the holder.

PLANETARY ROLLER SPEED CHANGER

An axial end of an output shaft facing toward an input shaft has a first hole that is concentric with the output shaft and that axially extends to a predetermined depth. An axial end of the input shaft facing toward the output shaft has a second hole that is concentric with the input shaft and that axially extends to a predetermined depth. A connection pin is inserted in the first hole and the second hole to connect the first hole and the second hole. When the output shaft and the input shaft axially approach each other, the connection pin interposed between the output shaft and the input shaft allows the output shaft and the input shaft to avoid coming into contact with each other. 1. A planetary roller speed changer comprising:an input shaft;a stationary ring concentric with the input shaft and located radially outward from the input shaft;a plurality of planetary rollers disposed between the input shaft and the stationary ring and in rolling contact with an outer periphery of the input shaft and an inner periphery of the stationary ring;a plurality of drive pins each inserted in a space defined by an inner periphery of a corresponding one of the plurality of planetary rollers;a carrier that supports the plurality of drive pins together;an output shaft concentric with the input shaft and fixed to the carrier; anda connection pin, whereinan axial end of the output shaft facing toward the input shaft has a first hole that is concentric with the output shaft and that axially extends to a predetermined depth,an axial end of the input shaft facing toward the output shaft has a second hole that is concentric with the input shaft and that axially extends to a predetermined depth,the connection pin is inserted in the first hole and the second hole to connect the first hole and the second hole, andwhen the output shaft and the input shaft axially approach each other, the connection pin interposed between the output shaft and the input shaft allows the output shaft and the ...

SHEET ACCOMMODATING CASSETTE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

A sheet accommodating cassette includes a sheet accommodating section, a sheet loading plate, and a lift mechanism. The lift mechanism includes a rotary shaft, a push-up plate, a coupling member, an actuator, and an urging member. The push-up plate lifts up and down the sheet loading plate by pivoting about the rotary shaft. Driving force is input from a cassette attachment section to the coupling member. The actuator projects from an end of the rotary shaft. The urging member urges the actuator in a direction in which the sheet loading plate pivots toward the lowered position. 1. A sheet accommodating cassette attachable to and detachable from a cassette attachment section of an apparatus main body , the sheet accommodating cassette comprising:a sheet accommodating section configured to accommodate sheets;a sheet loading plate that is supported on a bottom surface portion of the sheet accommodating section to pivot, and on which the sheets are loaded; anda lift mechanism configured to cause the sheet loading plate to pivot between a lowered position and a lifted position, the lowered position being a position at which the sheet loading plate lies down along the bottom surface portion, the lifted position being a position that is located above the lowered position to feed the sheets, wherein a rotary shaft supported in the sheet accommodating section and extending in a width direction perpendicular to a feeding direction of the sheets;', 'a push-up plate that projects from the rotary shaft and lifts up and down the sheet loading plate by pivoting about the rotary shaft while a distal end of the push-up plate being in contact with a lower surface of the sheet loading plate;', 'a coupling member that is provided at an end of the rotary shaft and to which driving force is input from the cassette attachment section;', 'an actuator projecting from the end of the rotary shaft; and', 'an urging member that urges the actuator in a direction in which the sheet loading plate ...

Printing device

A printing device includes: a substrate feed-out section; a substrate transport section; a storage which stores the width size of the substrate; a skew correction section including a skew sensor which detects the skew of the substrate, and adapted to correct the skew of the substrate with reference to an output of the skew sensor and the substrate width size stored in the storage; an image recording section which performs an image recording operation on the substrate; a first sensor which detects a width size-changed portion of the substrate upstream of the skew correction section with respect to the transport direction; and a controller. Upon the detection of the width size-changed portion, the controller stops the substrate skew correction while continuously transporting the substrate. After the width size-changed portion of the substrate reaches a reference position downstream of the skew correction section, the controller restarts the skew correction.

Print apparatus

An apparatus is disclosed comprising a print engine in a print zone. A platen opposes the print engine to support print media. The platen includes a plurality of openings in communication with at least one vacuum source. The platen includes a non-vacuum region, comprising a surface devoid of openings in communication with the at least one vacuum source. The non-vacuum region underlies at least a portion of the print zone.

PRINTING APPARATUS

Provided is a printing apparatus including: a holder unit provided with a holding member, a contact portion, and a shaft member, and an apparatus body provided with a support portion, and a fixing portion, wherein the shaft member is configured to be detachably attached to the support portion, the holder unit is configured to be rotatable between a first position and a second position with reference to the shaft member in a state where the shaft member is supported on the support portion, the first position is a position where the shaft member is attached to the support portion, and the second position is a position where the apparatus body fixes the holder unit by the fixing portion, the second position being a position where the contact portion is separated from the installation surface. 1. A printing apparatus comprising:an apparatus body including a printing unit configured to perform printing on a medium; anda roll body holder unit configured to move in a moving direction intersecting with a winding axis direction of the roll body along an installation surface of the apparatus body with respect to the apparatus body in a state where the roll body holder unit holds a roll body that is a roll of the medium, whereinthe roll body holder unit includes: a holding member configured to hold the roll body in a rotatable manner; a contact portion configured to be brought into contact with the installation surface; and a shaft member extended in the winding axis direction at a position above the contact portion in a vertical direction,the apparatus body includes: a support portion configured to support the shaft member; and a fixing portion configured to fix the roll body holder unit,the shaft member is detachably attached to the support portion by moving the roll body holder unit in the moving direction with respect to the apparatus body,the roll body holder unit is rotatable between a first position and a second position with reference to the shaft member in a state ...

Sheet pressing mechanism and image forming apparatus

A sheet pressing mechanism includes a pressing member configured to press a sheet that has been deformed to corrugate in a width direction that is orthogonal to a sheet discharging direction when the sheet is discharged toward a discharge tray. The pressing member has a first pressing area for pressing portions other than a top portion of a crest of the sheet when the discharged sheet comes into contact with the pressing member.

SHEET CONVEYING APPARATUS, METHOD FOR DETACHING ROTATION MEMBER UNIT FROM THE SHEET CONVEYING APPARATUS, AND IMAGE FORMING APPARATUS PROVIDED WITH THE SHEET CONVEYING APPARATUS

A sheet conveying apparatus includes a rotation member unit, a supporting shaft, and a moving shaft to detach the rotation member unit supported by the supporting shaft and the moving shaft. The rotation member unit includes a conveyance rotation member to convey a sheet, and a holding member including an engaging portion to engage with an engaged portion provided to a sheet conveying apparatus main body in a direction perpendicular to the supporting shaft axial direction. The supporting shaft supports one end side of the rotation member unit in the axial direction and the moving shaft supports another end side of the rotation member unit in the axial direction and moves in the axial direction. When the engaging portion engages with the engaged portion when the rotation member unit is not supported by the supporting shaft and the moving shaft, the rotation member unit is held by the engaged portion. 1. A sheet conveying apparatus capable of detaching a rotation member unit supported by a supporting shaft and a moving shaft , the sheet conveying apparatus comprising:the rotation member unit including a conveyance rotation member configured to convey a sheet, and a holding member including an engaging portion which is configured to engage with an engaged portion provided to a main body of the sheet conveying apparatus in a direction perpendicular to an axial direction of the supporting shaft and has a shape opened in the axial direction;the supporting shaft configured to support one end side of the rotation member unit in the axial direction; andthe moving shaft configured to support another end side of the rotation member unit in the axial direction and to move in the axial direction,wherein the engaging portion engages with the engaged portion in a state in which the rotation member unit is not supported by the supporting shaft and the moving shaft, and accordingly the rotation member unit is held by the engaged portion.2. The sheet conveying apparatus according to ...

SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET CONVEYING DEVICE

A sheet conveying device, which is included in an image forming apparatus, includes a first guide, a second guide, and a lever. The first guide is fixedly disposed to the sheet conveying device. The second guide is disposed opposite the first guide and defining a sheet conveyance passage with the first guide and is configured to rotate about a support shaft thereof operable to open and close the sheet conveyance passage. The lever is configured to rotate about a rotation shaft thereof operable to rotate the second guide. The second guide is configured to change from a closed state in which the sheet conveyance passage is closed to an open state in which the sheet conveyance passage is open, after an angle of rotation of the lever exceeds a threshold value. 1. A sheet conveying device comprising:a first guide fixedly disposed thereto;a second guide disposed opposite the first guide and defining a sheet conveyance passage with the first guide, the second guide configured to rotate about a support shaft thereof operable to open and close the sheet conveyance passage; anda lever configured to rotate about a rotation shaft thereof operable to rotate the second guide,the second guide configured to change from a closed state in which the sheet conveyance passage is closed, to an open state in which the sheet conveyance passage is open, after an angle of rotation of the lever exceeds a threshold value.2. The sheet conveying device according to claim 1 ,wherein the threshold value is an angle of at least 30 degrees.3. An image forming apparatus comprising the sheet conveying device according to .4. The sheet conveying device according to claim 2 ,wherein the threshold value is an angle of 45 degrees.5. An image forming apparatus comprising the sheet conveying device according to .6. The sheet conveying device according to claim 1 ,wherein the lever includes a roller rotatably disposed at a position distant from a rotary shaft,wherein the second guide has a conveyance guide ...

BELT UNIT, TRANSFER UNIT AND IMAGE FORMING APPARATUS

A belt unit includes a belt that comprises at least one first recess part having an inner wall face and at least one second recess part formed on the inner wall face of the first recess part, and a drive body that drives the belt to rotate. 1. A belt unit comprising:a belt that comprises at least one first recess part having an inner wall face and at least one second recess part formed on the inner wall face of the first recess part, anda drive body that drives the belt to rotate.2. The belt unit according to claim 1 , whereinat least part of the inner wall face of the first recess part is curved,the second recess part has an inner wall face, andat least part of the inner wall face of the second recess part is curved.3. The belt unit according to claim 1 , whereinthe belt internally has multiple voids.4. The belt unit according to claim 1 , whereinthe belt comprises an inner layer and a surface layer covering the surface of the inner layer, andthe first recess part is formed so as to penetrate the surface layer and remove a part of the inner layer.5. The belt unit according to claim 1 , further comprising:another first recess part which is configured in the same fashion as the first recess part, whereina shape of these first recess parts expends in a longer direction of the belt, andthese first recess parts are arranged in the longer direction of the belt.6. The belt unit according to claim 1 , whereina surface roughness (Rzjis), which is measured using a two-dimensional surface roughness meter of the inner wall face of the first recess part on which the second recess part is disposed, is ranged inclusively between 4.0 μm and 8.2 μm.7. A transfer unit comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the belt unit according to , and'}a cleaning member that contacts a surface of the belt of the belt unit, the first recess part of the belt being disposed on the surface.8. An image forming apparatus comprising:a development unit that forms a latent image ...

SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS

A sheet conveying apparatus for conveying a sheet includes a conveyance roller, a motor, a phase determiner, and a controller. The phase determiner determines a rotor rotation phase of the motor that drives the conveyance roller to convey the sheet. The controller controls so that a value of a rotor torque current component becomes a target value of the torque current component and controls so that an excitation current component value becomes a target value of the excitation current component, and controls to reduce a deviation between a command phase and the determined rotation phase. The controller controls so that a magnetic flux penetrating through a winding is weaker than a magnetic flux of the rotor, and so that a magnetic flux penetrating through the winding in a second period is stronger than the magnetic flux penetrating through the winding in the first period. 1. A sheet conveying apparatus for conveying a sheet , the sheet conveying apparatus comprising:a conveyance roller configured to convey the sheet;a motor configured to drive the conveyance roller;a phase determiner configured to determine a rotation phase of a rotor of the motor; anda controller configured to control a drive current flowing through a winding of the motor so that a value of a torque current component generating torque in the rotor which is expressed in a rotating coordinate system based on a rotation phase determined by the phase determiner becomes a target value of the torque current component and to control a drive current flowing through the winding so that a value of an excitation current component affecting intensity of a magnetic flux penetrating through the winding which is expressed in the rotating coordinate system becomes a target value of the excitation current component,wherein the controller sets the target value of the torque current component so as to reduce a deviation between a command phase representing a target phase of the rotor and the rotation phase determined ...

PAPER TRAY DEVICE CAPABLE OF DETECTING AMOUNT OF PAPER AND METHOD OF DETECTING AMOUNT OF PAPER WITH PAPER TRAY DEVICE

A paper tray includes a casing, a lifting mechanism, a weight detector, a storage unit, and a control unit. An accommodating space is formed inside the casing. The lifting mechanism is disposed inside the accommodating space for supporting and lifting at least one sheet of paper. The weight detector is disposed on the lifting mechanism for detecting a weight of the at least one sheet of paper. The storage unit is for storing paper information and a predetermined amount. The control unit is electrically connected to the weight detector and the storage unit. The control unit determines an amount of the at least one sheet of paper according to relation of the weight and the paper information and outputs a supplementary alert to an apparatus for reminding users when the control unit determines the amount of the at least one sheet of paper is less than the predetermined amount.

Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus includes a conveyance section, the conveyance section including a roller rotatable in a first rotation direction and a second rotation direction, a guide member configured to move between a first position and a second position, a drive source, a drive switching unit including an input unit, an output unit, and a switching unit, a drive interruption unit configured to transition between a transmission state and a non-transmission state. The roller is configured to rotate by the driving force output from the output unit of the drive switching unit while the guide member moves between the first position and the second position.

Conveyance device and image forming apparatus

A conveyance device includes: a holder to hold a paper roll and rotate along with rotation of the paper roll; a conveyor to convey a sheet located at an entry of a sheet conveyance path; a motor to apply a conveyance force to the conveyor; a first power supply circuit to output power both in a sleep mode and a ready mode; a second power supply circuit to output power in the ready mode but not in the sleep mode; a signal output unit supplied with the power from the first power supply circuit and to output a rotation detection signal when the holder rotates in the sleep mode or the ready mode; and a controller to, when the rotation detection signal is received in the sleep mode, turn on the second power supply circuit to supply the power to at least the motor to convey the sheet.

Image forming system, sheet processing device, and control method of sheet processing device

A sheet processing device includes a post-processing unit, a process tray, a first sensor, a second sensor, and a control unit. The post-processing unit performs post-processing on the sheet. The process tray places the sheet to be post-processed on the upper surface. The first sensor is disposed on the upper side of the process tray. The first sensor outputs a first signal corresponding to a first distance to an object which is disposed at a first position of the process tray. The second sensor is disposed on the upper side of the process tray. The second sensor outputs a second signal corresponding to a second distance to the object which is disposed at a second position on the downstream side in a sheet discharge direction from the first position of the process tray. The control unit controls the post-processing using the first signal and the second signal.

SHEET FEEDING DEVICE, IMAGE FORMING APPARATUS, SHEET FEEDING METHOD

A sheet feeding device comprises sheet storage for storing a sheet, a merging conveying unit for feeding the sheet from the sheet storage to an image forming apparatus, a transmitting element for transmitting an ultrasonic signal to the sheet conveyed on the merging conveying unit, and a receiving element for receiving the ultrasonic signal having passed through the sheet and outputting an output signal according to strength of the received ultrasonic signal. When the sheet is a Japanese paper, the sheet feeding device detects double feeding of the sheet according to an average value of a plurality of the output signals and variation in a plurality of the output signals obtained for the one sheet. If the sheet is not double fed, the sheet is fed to the image forming apparatus. If the sheet is double fed, the sheet is discharged to the escape tray. 1. A sheet feeding device comprising:a sheet storage configured to store a sheet,a sheet feeder configured to feed the sheet stored in the sheet storage,a transmitter configured to transmit a signal to the sheet fed by the sheet feeder,a receiver configured to receive the signal which passes through the sheet and output an output signal according to strength of the received signal, anda controller configured to determine double feeding of the sheet fed by the sheet feeder according to an average value of values of a plurality of the output signals and variation in the values of the plurality of the output signals obtained for the one sheet if the sheet stored on the sheet storage is a first type sheet.2. The sheet feeding device according to claim 1 , further comprising:an escape conveying unit configured to discharge the sheet to a tray which is different from a target position, andwherein the controller is further configured to cause the conveying unit to convey a sheet which is determined as double feeding to the escape conveying unit and convey a sheet which is not double fed to the target position.3. The sheet feeding ...

Sheet conveying device and image forming apparatus incorporating the sheet conveying device

A sheet conveying device, which is included in an image forming apparatus, includes a sheet holding roller to move while holding a sheet, a detector to perform a primary detection to detect a sheet position before the sheet holding roller holds the sheet and a secondary detection to detect a sheet position downstream from the sheet position detected by the primary detection, and a controller configured to cause the sheet holding roller to perform a first drive to move the sheet holding roller in at least one direction of a width direction of the sheet and a rotation direction in a sheet conveying surface based on a result of the primary detection and a second drive to move the sheet holding roller opposite to the at least one direction of the first drive, based on a result of the secondary detection.

Sheet Conveyer and Image Forming Apparatus

A sheet conveyer to shift a sheet at one side of the sheet conveyer in a widthwise direction is provided. The sheet conveyer includes a pair of rollers, a regulative guide arranged at a position closer to the one side than the pair of rollers in the widthwise direction, a first guide arranged at a position upstream from the pair of rollers with regard to a conveying direction to contact a first area on a first face of the sheet at a position closer to the one side in the widthwise direction than a widthwise center of the sheet, and a second guide arranged at a position upstream from the pair of rollers with regard to the conveying direction to contact a second area on a second face of the sheet. The second guide partly overlaps the first guide in a direction of height. 1. A sheet conveyer configured to shift a sheet being conveyed in a conveying direction sideward at one side of the sheet conveyer in a widthwise direction , the widthwise direction being orthogonal to the conveying direction; comprising:a pair of rollers configured to nip the sheet and apply a conveying force to shift the sheet sideward to the sheet;a regulative guide arranged at a position closer to the one side than the pair of rollers in the widthwise direction, the regulative guide extending in the conveying direction and being configured to contact an edge of the sheet closer to the one side in the widthwise direction to regulate a position of the edge;a first guide arranged at a position upstream from the pair of rollers with regard to the conveying direction, the first guide being configured to contact a first area on a first face of the sheet at a position closer to the one side in the widthwise direction than a widthwise center of the sheet; anda second guide arranged at a position upstream from the pair of rollers with regard to the conveying direction, the second guide being configured to contact a second area on a second face of the sheet at a position closer to the one side in the ...

MEDIUM FEEDING APPARATUS AND IMAGE READING APPARATUS

An image reading apparatus includes a reading unit and a medium feeding apparatus. The medium feeding apparatus includes: a medium placement portion on which a medium before being fed is placed; a feed roller that feeds the medium placed on the medium placement portion; and at least one pressing portion that presses the medium placed on the medium placement portion onto the medium placement portion at a position upstream of the feed roller in a medium feeding direction. Since the pressing portion presses the medium placed on the medium placement portion, friction occurs between sheets of the medium, thereby preventing or reducing a skew. 1. A medium feeding apparatus , comprising:a medium placement portion on which a medium before being fed is placed;a feed roller that feeds the medium placed on the medium placement portion; andat least one pressing portion that presses the medium placed on the medium placement portion onto the medium placement portion at a position upstream of the feed roller in a medium feeding direction.2. The medium feeding apparatus according to claim 1 , whereinthe pressing portion is configured such that a pressing position where the pressing portion presses the medium is adjustable in the medium feeding direction.3. The medium feeding apparatus according to claim 2 , further comprising:a lower unit that includes the medium placement portion;an upper unit that is provided over the lower unit;a medium feeding path along which the medium is fed and which is formed between the lower unit and the upper unit; anda pivoting portion that is able to pivot with respect to the upper unit; whereinthe pressing portion is provided on a free end that is away from the center of pivoting of the pivoting portion.4. The medium feeding apparatus according to claim 3 , whereinthe pivoting portion includes a base portion that is pivotable and at least one slide portion that is located in a direction toward the free end with respect to the base portion and is able ...

Medium transport apparatus and processing apparatus

A medium transport portion includes a main body portion, a tray unit, and a support guide member. The main body portion includes a first manual feed path and a second manual feed path. The tray unit can be accommodated in the main body portion in a non-use state, and a medium is mounted thereon in a use state. The support guide member is movable in a Z-direction, and supports the tray unit such that a first position that the tray unit is positioned in the first manual feed path, a second position of being positioned in the second manual feed path, and a third position of being accommodated in the main body portion are switched.

SHEET PLACEMENT APPARATUS AND PRINTING APPARATUS

Provided is a sheet placement apparatus that is capable of changing the force of pushing a hopper configured to push up a sheet, without an increase in size, and a printing apparatus that is equipped with such a sheet placement apparatus. 1. A sheet placement apparatus , comprising:a placement portion on which a sheet is able to be placed;a hopper that pushes up the sheet off a bottom of the placement portion by moving away from the bottom inside the placement portion;a pushing member that pushes the hopper away from the bottom; a position change member that is fixed to the pushing member in such a way as to be able to change position due to deformation of the pushing member, is in contact with the hopper from a bottom side when the pushing member is in the pushing state, and is located away from the hopper toward the bottom when the pushing member is in the non-pushing state, and', 'a restricting portion that is provided at a position that is, in the placement portion, closer to the bottom than the hopper is and is on a path of position change of the position change member, is configured to allow the position change member to change position toward the hopper on a basis of a pushing force of the pushing member when the position change member is not in contact, and is configured to restrict position change of the position change member toward the hopper against the pushing force of the pushing member when the position change member is in contact;, 'a switching portion that switches the pushing member between a pushing state, in which the hopper is pushed, and a non-pushing state, in which the hopper is not pushed, the switching portion including'}wherein either one, the position change member or the restricting portion, is able to rotate relatively to the other on a shaft portion, which intersects with the bottom in a vertical direction, andwherein rotation of the either one causes a switching between the pushing state, in which the position change member is not in ...

SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS

A sheet feeding apparatus includes a sheet supporting portion configured to support a sheet, a feeding portion configured to feed the sheet, a swing unit configured to swingably support the feeding portion between a feed position and a separation position, a swing shaft configured to swingably support the swing unit, an urging portion configured to urge the swing unit toward the feed position, and a holding portion configured to hold the swing unit at the separation position against an urging force of the urging portion. The swing unit includes a first and second bearing portions configured to slidingly support the swing shaft, a metal member configured to hold the first and second bearing portions, and a resin member including a guide surface configured to guide the sheet fed by the feeding portion. 1. A sheet feeding apparatus comprising:a sheet supporting portion configured to support a sheet;a feeding portion configured to feed the sheet supported by the sheet supporting portion;a swing unit configured to swingably support the feeding portion between a feed position and a separation position, the feed position being a position at which the feeding portion abuts against the sheet supported by the sheet supporting portion and feed the sheet, the separation position being a position at which the feeding portion is separated from the sheet supported by the sheet supporting portion;a swing shaft configured to swingably support the swing unit;an urging portion configured to contact with the swing unit at a first position so as to urge the swing unit toward the feed position; anda holding portion configured to contact with the swing unit at a second position so as to hold the swing unit at the separation position against an urging force of the urging portion, the second position being different from the first position in an axial direction of the swing shaft, a first bearing portion configured to slidingly support the swing shaft;', 'a second bearing portion disposed ...

SHEET CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS

A sheet conveyance device includes a driving rotation device, a driven rotation device, and a supporting device including first and second restriction surfaces and supporting the driven rotation device. The driving rotation device rotates by receiving rotational driving force and drives the driven rotation device to rotate at a position facing the driving rotation device. The driven rotation device includes a driven rotation member contacting the driving rotation device, a cylindrical shaft having a cylindrical shape that rotatably supports the driven rotation member, and a restriction member that is at least partially inserted in an inner circumference side of the cylindrical shaft. A position of the cylindrical shaft is restricted in a width direction crossing the sheet conveyance direction by the restriction member contacting the first restriction surface, and movement of the cylindrical shaft in a rotational direction is restricted by the restriction member contacting the second restriction surface. 1. A sheet conveyance device comprising:a driving rotation device configured to rotate by receiving rotational driving force from a driving unit;a driven rotation device configured to be driven by the driving rotation device to rotate at a position facing the driving rotation device; anda supporting device including a first restriction surface and a second restriction surface in an outside area of the driven rotation device in a sheet conveyance direction, and configured to support the driven rotation device,wherein the driven rotation device includes a driven rotation member contacting the driving rotation device, a cylindrical shaft made of metal and having a cylindrical shape and configured to rotatably support the driven rotation member, and a restriction member that is at least partially inserted in an inner circumference side of the cylindrical shaft, andwherein a position of the cylindrical shaft is restricted in a width direction crossing the sheet conveyance ...

Sheet processing apparatus

In accordance with an embodiment, a sheet processing apparatus comprises a processing tray configured to load sheets to which a post processing is executed; a pair of alignment plates arranged on the processing tray at a predetermined interval and configured to move in a direction orthogonal to a sheet conveyance direction and align the sheets on the processing tray in the sheet width direction; and a controller configured to control the pair of the alignment plates to move towards each other to first alignment positions at which the sheets are aligned in the direction and stop, and control the pair of the alignment plates to move towards each other to second alignment positions without moving the pair of the alignment plates in a reverse direction to align the sheets.

PRINTER AND MERCHANDISE INFORMATION PROCESSING APPARATUS

A printer according to an embodiment includes a printing unit that prints on a sheet. The sheet is discharged through an outlet. The sheet is conveyed on a sheet conveyance path through the printing unit and to the outlet. A movable device is located on the sheet conveyance path upstream of the outlet in a sheet conveying direction. The movable device can move between a separation position, a proximity position, and a protruding position. A detection device detects a position of the movable device. A controller determines a conveyance abnormality of the sheet based on the state of the movable device detected by the detection device, and outputs a signal indicating the conveyance abnormality. 1. A printer comprising:a printing unit configured to perform printing on a sheet;an outlet through which the sheet is discharged;a guide positioned between the printing unit and the outlet and having a conveyance surface on which the sheet is conveyed towards the outlet; a separation position in which the movable device is separated from the conveyance surface by more than a predetermined threshold distance,', 'a proximity position in which the movable device is separated from the conveyance surface by a distance equal to or less than the predetermined threshold distance, and', 'a protruding position in which a part of the movable device protrudes beyond the conveyance surface toward an opposite side thereof;, 'a movable device configured to move betweena detection device configured to detect a position of the movable device; anda controller configured to determine that a conveyance abnormality of the sheet is occurring upon detecting that the movable device does not move to the proximity position from the protruding position after conveyance of the sheet is started or the movable device is in the separation state, and output a signal indicating the conveyance abnormality.2. The printer according to claim 1 , whereinthe printing unit includes a thermal head and a platen roller. ...

SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET CONVEYING DEVICE

A sheet conveying device includes a pair of rollers, a biasing member, a guide member, a biasing support, and a biasing force changer. The pair of rollers includes a first roller and a second roller disposed in contact with the first roller. The pair of rollers is configured to hold a sheet between the first roller and the second roller. The biasing member is configured to bias the first roller toward the second roller. The biasing support is configured to support the biasing member and has a guide target member configured to slide along the guide member to move the biasing support. The biasing force changer is configured to change a biasing force of the biasing member along with movement of the biasing. support. The guide target member has a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers. 1. A sheet conveying device comprising:a pair of rollers including a first roller and a second roller disposed in contact with the first roller,the pair of rollers being configured to hold a sheet between the first roller and the second roller while the sheet is conveyed;a biasing member configured to bias the first roller toward the second roller;a guide member;a biasing support configured to support the biasing member,the biasing support having a guide target member configured to slide along the guide member to move the biasing support; anda biasing force changer configured to change a biasing force of the biasing member along with movement of the biasing support,the guide target member having a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers.2. The sheet conveying device according to claim 1 ,wherein the portion of the guide target member is a guide portion configured to guide a leading end of the sheet downstream in a sheet conveyance direction even when the leading end of the sheet contacts the portion of the guide target member.3. The sheet conveying ...

MOVING MEDIA IN REVERSE DUPLEX DIRECTION ALONG MEDIA DUPLEX PATH

A method includes guiding the media n a forward simplex direction by a simplex media path of a media transport assembly of the printing apparatus to position a respective side of the media across from a toner applicator to receive toner thereon and a fuser to fuse the toner thereon. The method also includes guiding the media in a forward duplex direction to the simplex media path by the duplex media path of the media transport assembly so that another side of the media is positioned towards the toner applicator to receive the toner thereon. The method also includes selectively moving the media in a reverse duplex direction opposite from the forward duplex direction to direct the media along the duplex media path to an output area outside of the media transport assembly by the control module in response to a media flushing event. 1. A printing apparatus , comprising:a toner applicator to apply toner to media;a fuser to fuse the toner to the media; and the simplex media path to guide the media to the toner applicator to position a respective side of the media towards the toner applicator to receive the toner thereon and the fuser; and', 'the duplex media path o guide the media to the simplex media path in a manner that an another side of the media is positioned towards the toner applicator to receive the toner thereon; and, 'a media transport assembly to transport the media, the media transport assembly including a simplex media path and a duplex media path;'}a control module including a movement member to selectively move the media along the duplex media path in a forward duplex direction to direct the media to the simplex media path, and a reverse duplex direction opposite from the forward duplex direction to direct the media to an output area outside of the media transport assembly in response to a media flushing event.2. The printing apparatus of claim 1 , wherein the movement member comprises: the first drive motor to move the media along the duplex media path in ...

Liqud ejection apparatus

A liquid ejection apparatus, including: a conveyor; and an ejector to eject a liquid; wherein each of an upstream roller pair, a first downstream roller pair, and a second downstream roller pair of the conveyor includes upper and lower rollers to respectively contact front and back surfaces of a recording medium, at least one of the upper and lower rollers being configured to give a conveyance force to the recording medium, wherein a rotation speed of the second downstream roller pair is higher than that of the first downstream roller pair, and the conveyance force of the first downstream roller pair is larger than that of the second downstream roller pair, and wherein the conveyance force of the second downstream roller pair is largest at a position thereof in the first direction which is nearest to the central position of the second downstream roller pair.

SHEET CONVEYING APPARATUS

A sheet conveying apparatus, including: a sheet container; a roller; an arm rotatably supporting the roller; and a presser plate for pressing sheets in the container, wherein distal and basal portions of the presser plate define a bend angle when bent, the bend angle being an angle defined on one side of the presser plate farther from the arm, the bend angle being maintained at an obtuse angel in a first-amount loaded state of the container, and wherein a contact angle of the arm and the sheets at a contact position thereof is smaller than a maximum angle from a maximally loaded state to the first-amount loaded state, the maximum angle being an angle defined by: the basal portion in the maximally loaded state; and the arm whose roller contacts the presser plate in the maximally loaded state when assumed that the sheets are not loaded on the presser plate. 1. A sheet conveying apparatus , comprising:a container for storing a stack of a plurality of sheets;a roller rotatable about a rotation shaft parallel to the plurality of sheets stored in the container and configured to convey the plurality of sheets one by one in a conveyance direction by rotating about the rotation shaft while being held in contact with a front surface of the plurality of sheets stored in the container;an arm including a supporter that rotatably supports the roller, the arm being pivotable about an arm pivot shaft parallel to the rotation shaft while the supporter is located downstream of the arm pivot shaft in the conveyance direction, anda presser plate configured to press the plurality of sheets stored in the container toward the roller and to be pivotable about a presser-plate pivot shaft parallel to the rotation shaft,wherein the presser plate includes a bend portion disposed between: a downstream end of the presser plate in the conveyance direction; and the presser-plate pivot shaft, the bend portion being bent or bendable,wherein a distal portion which is a portion of the presser plate ...

SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS

A sheet feeding device includes a rotation shaft that rotates in synchronism with rotation of the feed member, a spring clutch that is deformable to be in a tightened state and to be in a loosened state, and a pressure-receiving member that becomes displaced from a first position to a second position by receiving a pressing force that is generated as the spring clutch swings. The spring clutch starts to be loosened from the tightened state as a first end portion of the spring clutch becomes engaged with an engagement portion when the pressure-receiving member is displaced to the second position. 1. A sheet feeding device that feeds a sheet on a tray to a destination by using a feed member , the sheet feeding device comprising:a rotation shaft that rotates in synchronism with rotation of the feed member;a spring clutch that is deformable to be in a tightened state in which the spring clutch swings as the rotation shaft rotates and to be in a loosened state in which the spring clutch does not swing as the rotation shaft rotates; anda pressure-receiving member that becomes displaced from a first position to a second position by receiving a pressing force that is generated as the spring clutch swings,wherein the spring clutch is in the tightened state when the spring clutch is in an initial position, and the spring clutch starts to be loosened from the tightened state as a first end portion of the spring clutch becomes engaged when the spring clutch swings to a predetermined swing position and the pressure-receiving member is displaced to the second position.2. The sheet feeding device according to claim 1 , wherein the spring clutch is attached to the rotation shaft.3. The sheet feeding device according to claim 1 , further comprising:a pressing member that is swingably attached to the rotation shaft,wherein a second end portion of the spring clutch is coupled to the pressing member, andwherein the pressing member presses the pressure-receiving member by swinging as ...

Print system

The present invention relates to a print system, such as an ink jet printer, which performs printing on a medium, such as a sheet that is transported.

MEDIUM CONVEYING APPARATUS INCLUDING JOINT FOR CONNECTING A ROLLER AND A DRIVE SHAFT

A medium conveying apparatus includes a first roller, a second roller located to face the first roller, to hold and convey a medium with the first roller, a drive shaft to rotate the second roller, a motor to rotate the drive shaft, and a joint to connect the second roller and the drive shaft. The joint is configured to keep connecting the second roller and the drive shaft when the second roller moves in a vertical direction. The drive shaft is located at an intermediate position between a first position where the second roller is in contact with the first roller and a second position where the second roller separates most from the first roller in the vertical direction. A distance between the second position and the intermediate position is greater than a radius on cross section of the second roller in the vertical direction. 1. A medium conveying apparatus comprising:a first roller;a second roller located to face the first roller, to hold and convey a medium with the first roller;a drive shaft to rotate the second roller;a motor to rotate the drive shaft; anda joint to connect the second roller and the drive shaft, wherein the joint is configured to keep connecting the second roller and the drive shaft when the second roller moves in a vertical direction, whereinthe drive shaft is located at an intermediate position between a first position where the second roller is in contact with the first roller and a second position where the second roller separates most from the first roller in the vertical direction, and whereina distance between the second position and the intermediate position is greater than a radius on cross section of the second roller in the vertical direction.2. The medium conveying apparatus according to claim 1 , wherein the second roller is in contact with the first roller when the medium is not conveyed between the first roller and the second roller claim 1 , and moves in a direction away from the first roller when the medium is conveyed between ...

SHEET PROCESSING APPARATUS

In accordance with an embodiment, a sheet processing apparatus comprises a decoloring section, a stacking section, an image forming section, a sheet feed roller and a combined roller. The decoloring section carries out a decoloring processing on a sheet. The sheet subjected to the decoloring processing is discharged to the stacking section. The image forming section carries out an image forming processing on the sheet fed from the stacking section. The sheet feed roller feeds a sheet stacked in the stacking section to a conveyance path through which the sheet is fed to the image forming section. The combined roller aligns the sheets to be discharged to the stacking section at a reference position in a conveyance direction in which the sheets are conveyed to the sheet feed roller, and feeds the sheets stacked in the stacking section to the sheet feed roller along the conveyance direction. 1. A sheet processing apparatus , comprising:a decoloring section configured to carry out a decoloring processing on a sheet;a stacking section to which the sheet subjected to the decoloring processing is discharged at a first position downstream from the decoloring section;an image forming section configured to carry out an image forming processing on the sheet fed from the stacking section at a second position downstream from the stacking section;a paper feed roller configured to feed a sheet stacked in the stacking section to a conveyance path through which the sheet is fed to the image forming section; anda combined roller configured to align sheets to be discharged to the stacking section at a reference position in a conveyance direction in which the sheets are conveyed to the sheet feed roller, and feed the sheets stacked in the stacking section to the sheet feed roller along the conveyance direction.2. The apparatus according to claim 1 , further comprisinga moving mechanism configured to move the combined roller along the conveyance direction to position the combined roller ...

PAPER THICKNESS DETECTING DEVICE AND IMAGE FORMING APPARATUS

A paper thickness detecting device that detects a paper thickness in accordance with a detection signal of a displacement sensor, includes: a pair of paper thickness detecting rollers including a first roller and a second roller that pinch a paper conveyed via a pair of conveyance rollers; and the displacement sensor that detects a displacement amount of the pair of paper thickness detecting rollers at the time when the paper passes through the pair of paper thickness detecting rollers, wherein the paper thickness is detected on the basis of the displacement amount of the pair of paper thickness detecting rollers that follows to rotate with respect to the paper conveyed via the pair of conveyance rollers. 1. A paper thickness detecting device that detects a paper thickness in accordance with a detection signal of a displacement sensor , the paper thickness detecting device , comprising:a pair of paper thickness detecting rollers comprising a first roller and a second roller that pinch a paper conveyed via a pair of conveyance rollers; andthe displacement sensor that detects a displacement amount of the pair of paper thickness detecting rollers at the time when the paper passes through the pair of paper thickness detecting rollers,wherein the paper thickness is detected on the basis of the displacement amount of the pair of paper thickness detecting rollers that follows to rotate with respect to the paper conveyed via the pair of conveyance rollers.2. The paper thickness detecting device according to claim 1 ,wherein the pair of paper thickness detecting rollers can be switched between driving rotation in which one of the first roller and the second roller is set as a driving roller while the other one is set as a following roller and following rotation in which both of the first roller and the second roller are allowed to follow to rotate.3. The paper thickness detecting device according to claim 2 , further comprising:a switcher that switches the pair of paper ...

SHEET FEEDING APPARATUS

A sheet feeding apparatus is provided with a pick-up roller that contacts sheets loaded on a load tray to pick up, a paper feed roller that feeds a picked-up sheet, and a separation roller brought into press-contact with the paper feed roller to separate the sheet, where the sheets are separated from the pick-up roller, the separation roller is rotated in a sheet return direction different from a sheet feed direction, and subsequently, the paper feed roller is separated from the separation roller. It is possible to prevent damage to a sheet and sheet jam from occurring in pulling out the load tray loaded with sheets to the front side. 1. A sheet feeding apparatus for feeding sheets , comprising:a load tray adapted to load sheets;a pick-up roller adapted to contact sheets loaded on the load tray to pick up;a paper feed roller adapted to feed a picked-up sheet;a separation roller brought into press-contact with the paper feed roller to separate the sheet;a drive motor adapted to rotate the separation roller;a separation/contact mechanism adapted to bring and separate the sheet on the load tray into contact with/from the pick-up roller;a separation mechanism adapted to bring and separate the paper feed roller into press-contact with/from the separation roller; anda control section adapted to execute sheet return operation for separating the paper feed roller from the separation roller by the separation mechanism, after separating the sheet from the pick-up roller by the separation/contact mechanism, and rotating the separation roller in a sheet return direction different from a sheet feed direction by the drive motor.2. The sheet feeding apparatus according to claim 1 , wherein the control section includes an acquisition section that acquires an abnormal transport of a sheet claim 1 , and based on that the acquisition section acquires the abnormal transport of the sheet claim 1 , executes the sheet return operation.3. The sheet feeding apparatus according to claim 1 , ...

ROLLER FEED MECHANISM FOR PRINTER HAVING MULTIPLE PRINTHEADS

A printer includes: a first fixed printhead; a second fixed printhead positioned downstream of the first printhead relative to a media feed direction; a fixed platen for supporting print media; an input roller assembly positioned upstream of the first printhead, the input roller assembly comprising a pair of input rollers having a first nip force N; an output roller assembly positioned downstream of the second printhead, the output roller assembly comprising a pair of output rollers having a second nip force N; and an intermediary roller assembly positioned between the first and second printheads, the intermediary roller assembly comprising a pair of intermediary rollers having a third nip force N. The nip forces satisfy the relationship N>N>Nfor optimal printing results. 1. A printer comprising:a first fixed printhead having a respective first print zone;a second fixed printhead positioned downstream of the first printhead relative to a media feed direction, the second printhead having a respective second print zone;at least one fixed platen for supporting print media in the first and second print zones;{'sub': '1', 'an input roller assembly positioned upstream of the first printhead, the input roller assembly comprising a pair of input rollers having a first nip force Ntherebetween;'}{'sub': '2', 'an output roller assembly positioned downstream of the second printhead, the output roller assembly comprising a pair of output rollers having a second nip force Ntherebetween; and'}{'sub': '3', 'an intermediary roller assembly positioned between the first and second printheads, the intermediary roller assembly comprising a pair of intermediary rollers having a third nip force Ntherebetween,'}{'sub': 1', '2', '3, 'wherein N>N>N.'}2. The printer of claim 1 , wherein the first and second printheads are positioned in an overlapping arrangement with respect to the media feed direction.3. The printer of claim 1 , wherein the platen extends between the first and second ...

Sheet feeding apparatus and image forming apparatus

A sheet feeding apparatus includes a stacking surface on which a sheet is stacked, a feed portion configured to feed the sheet in a sheet feeding direction, first and second detecting portions disposed at positions different from each other in a width direction orthogonal to the sheet feeding direction and so as to overlap with the stacking surface in a view from a height direction orthogonal to the stacking surface, the first and second detecting portions being configured to detect height positions which are positions in the height direction of an uppermost sheet, and a control portion configured to stop feeding the sheet by the feed portion based on at least one detection result of the first and second detecting portions in feeding the sheet.

PRINTING DEVICE CONFIGURED TO SEPARATE SHEET INTO FIRST SHEET AND SECOND SHEET, DISCHARGE FIRST SHEET, AND REUSE SECOND SHEET

A printing device includes: a feeding tray on which a sheet can be mounted; a first conveying passage; an image forming unit disposed along the first conveying passage and configured to record an image on the sheet; a cutting unit disposed along the first conveying passage downstream of the image recording unit and configured to cut the sheet; a second conveying passage connected to the first conveying passage; and a controller configured to perform: conveying the sheet mounted on the feeding tray to the image recording unit; recording an image on the sheet by the image recording unit; cutting the recorded sheet at a cutting position on the sheet to divide the sheet into a first sheet on which the image has been recorded and a second sheet on which the image has not been recorded; discharging the first sheet; and conveying the second sheet to the second conveying passage. 1. A printing device comprising:a feeding tray on which a sheet can be mounted;a first conveying passage in which the sheet is conveyed in a first conveying direction;an image recording unit disposed along the first conveying passage and configured to record an image on the sheet;a cutting unit disposed along the first conveying passage at a position downstream of the image recording unit in the first conveying direction, the cutting unit being configured to cut the sheet;a second conveying passage in which the sheet is conveyed in a second conveying direction different from the first conveying direction, the second conveying passage being connected to the first conveying passage at a merging position on the first conveying passage positioned upstream of the image recording unit in the first conveying direction; and (a) conveying the sheet mounted on the feeding tray to the image recording unit;', '(b) recording, using the image recording unit, an image on the sheet;', '(c) cutting, using the cutting unit, the sheet on which the image has been recorded in the (b) recording at a cutting position on ...

Sheet feeding device, image forming apparatus incorporating the sheet feeding device, and image forming system incorporating the sheet feeding device

A sheet conveying device includes a sheet loader, a loader elevating device, a sheet presence detector to detect a sheet on the sheet loader, and circuitry configured to determine whether the bundle of sheets is loaded on the sheet loader based on a detection result of the sheet presence detector and to control movement of the loader elevating device. The circuitry is configured to cause the loader elevating device to lift the sheet loader to a second position in response to a detection result of the sheet presence detector indicating absence of the sheet on the sheet loader at a first position and not to determine absence of the sheet when the circuitry causes the loader elevating device to lower the sheet loader from the second position to the first position after the circuitry causes the loader elevating device to lift the sheet loader to the second position.

PRINT DEVICES

A print device comprises a media pickup assembly to feed print media, from a print media stack of an input tray, into a media loading path for printing. The media pickup assembly () includes a pickup roller () mounted on a rotatable shaft () and may include an outer surface () to be in contact with the print medium and a slot () comprising lateral walls () extending from the outer surface towards a central longitudinal axis of the pickup roller. Each lateral wall has an edge meeting the outer surface (). The edge () creates a surface contact between the print media and the pickup roller, to allow the pickup roller () to push the print media into the media loading path. A distance between the edge () of one lateral wall (-) and the edge of another lateral wall (-) is in a range of about 2 mm to 3 mm. The distance defines a width of the slot (). 1. A print device comprising:an input tray to receive a print media stack for printing; and an outer surface to be in contact with the print medium on top of the print media stack, for being fed into the media loading path; and', 'a slot comprising lateral walls extending from the outer surface towards a central longitudinal axis of the pickup roller, each lateral wall having an edge meeting the outer surface of the pickup roller, wherein the edge of each lateral wall is to create a surface contact between the print media and the pickup roller, to allow the pickup roller to push the print media into the media loading path, and wherein a distance between the edge of one lateral wall to the edge of another lateral wall of the slot is in a range of about 2 millimeter (mm) to 3 mm, the distance defining a width of the slot., 'a media pickup assembly to feed print media from the print media stack, into a media loading path for printing, the media pickup assembly comprising a pickup roller mounted on a rotatable shaft to push the print media into the media loading path, the pickup roller comprising2. The print device as claimed in ...

SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS

A sheet conveying device includes a sheet feed tray with a first guide, a main body with a second guide, a guide member disposed at the sheet feed tray, and a contact portion located at the main body. The sheet feed tray is movable in a first direction. The guide member is movable between a protruding position and a withdrawn position. The guide member at the protruding position is disposed downstream of the first guide in a sheet conveyance direction and upstream of the second guide in the first direction such that the guide member overlaps the second guide in the first direction. The guide member at the withdrawn position does not overlap the second guide in the first direction. The contact portion is configured to, as the sheet feed tray moves from the main body, contact and move the guide member from the protruding position toward the withdrawn position. 1. A sheet conveying device comprises:a sheet feed tray configured to support a sheet, the sheet feed tray including a first guide configured to guide the sheet; a tray accommodating portion configured to accommodate the sheet feed tray such that the sheet feed tray is movable in a first direction from an accommodated position where the sheet feed tray is accommodated in the tray accommodating portion toward a drawn position where the sheet feed tray is drawn from the tray accommodating portion;', 'a feed roller disposed upstream of the first guide when the sheet feed tray is at the accommodated position, the feed roller being configured to convey a sheet in a sheet conveyance direction from the sheet feed tray accommodated in the tray accommodating portion to the first guide; and', 'a second guide configured to guide the sheet conveyed by the feed roller from the sheet feed tray accommodated in the tray accommodating portion;, 'a main body including wherein, when the guide member is at the protruding position, the guide member is disposed downstream of the first guide in the sheet conveyance direction and ...

ADJUSTABLE PATH LENGTH OF PRINT MEDIA IN A DRYER OF A PRINTING SYSTEM

Systems and methods for adjustable path length of print media in a dryer of a printing system. In one embodiment, the dryer includes a drum that applies heat to a web of print media. The dryer also includes first rollers positioned in an arc around the drum to define a path of travel of the web along the arc when the web is between an entrance of the dryer and the drum. The dryer further includes second rollers positioned inside the arc from the first rollers to reverse the path of travel of the web inside the arc when the web is between the drum and an exit of the dryer. A first roller and a second roller transport the web around the drum. A location of the first roller and the second roller relative to the arc defines a length of the web inside the dryer. 1. A web handling system comprising:a drum configured to rotate about an axis, and to guide a web of print media;first rollers positioned in an arc around the drum to define a web path along the arc between an entrance of the of the web handling system and the drum; andsecond rollers positioned inside the arc from the first rollers that reverse the web path inside the arc between the drum and an exit of the web handling system;wherein a first roller directs the web path toward a surface of the drum, a second roller directs the web path from the surface of the drum, and a location of the first roller and the second roller relative to the arc defines a length of the web inside the web handling system.2. The web handling system of wherein:the length of the web inside the web handling system is a first distance when the location of the first roller and the second roller is at a far end of the arc with respect to a travel distance of the web from the entrance of the web handling system;the length of the web inside the web handling system is a second distance that is less than the first distance when the location of the first roller and the second roller is between the far end of the arc and a near end of the arc that ...

Printing apparatus, inspection apparatus, and method of controlling the same

In a printing apparatus according to an embodiment of the present invention, it is possible to inspect an image of a printed product where an image is printed accurately without scratching a print medium as the printed product. In the printing apparatus, first, a reading unit reads the image on the print medium conveyed by a conveyance unit, and a fixing unit fixes the print medium to a reading area by the reading unit. Then, control is performed so as to stop conveyance by the conveyance unit and fix the print medium by the fixing unit at the time of image reading, and release fixing of the print medium by the fixing unit and resume conveyance by the conveyance unit if the image reading is complete.