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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3868. Отображено 100.
19-01-2012 дата публикации

Device for separating flat articles, a corresponding control method, and a corresponding postal machine

Номер: US20120013065A1
Автор: Mickael Dauvergne, Stephane Ambroise, Stéphane Samain
Принадлежит: Solystic SAS

The invention relates to a separator device ( 18 ) comprising a passage zone ( 40 ) through which the articles pass and which extends between drive means ( 20, 30 ), retaining means ( 24, 34 ) for retaining an article relative to another article, and suitable for separating them mutually, control means suitable for activating and deactivating, independently, each first and second drive means ( 20, 30 ), and each first and second retaining means ( 24, 34 ). The drive means ( 20, 30 ) are distant from each other so as to define the passage zone ( 40 ), and the retaining means ( 24, 34 ) are suitable for exerting substantially transverse forces in opposite directions, so as to suck at least one article against corresponding drive means. The invention also relates to a method of controlling the above-mentioned separator device ( 18 ), and to a postal sorting machine including such a separator device ( 18 ).

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Номер записи: 1
08-03-2012 дата публикации

Image formation device

Номер: US20120056970A1
Автор: Atsushi Miwa
Принадлежит: Brother Industries Ltd

An image formation device is configured such that a length of a sheet feed path from a sheet accommodation unit to a sheet detection unit is greater than the sheet distance for a predetermined type sheet that has substantially the same sheet length as a maximum size sheet employable in the image formation unit. A sheet length of the sheet fed by the sheet feed mechanism is measured. If the sheet length of a firstly fed sheet, which is fed in response to an image formation instruction and measured by the measuring unit, is equal to the sheet length of the predetermined type of sheet, the control unit feeds a subsequent sheet with the sheet distance corresponding for the maximum size sheet between a trailing end of the previously fed sheet and the leading end of the subsequent sheet.

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Номер записи: 2
15-03-2012 дата публикации

image processing apparatus, an image forming apparatus, an image processing method and a recording medium

Номер: US20120061909A1
Автор: Akinori Yamaguchi, Izumi Kinoshita, Kunihiro Komai, Takeshi Shikama, Takuhei Yokoyama, Tatsuya Miyadera, Yoshinori Shirasaki
Принадлежит: Ricoh Co Ltd

An image processing apparatus includes a reading part configured to optically read skew amount measurement patterns and opposite ends of a paper sheet; an image skew amount detecting part configured to detect skew amounts on a color basis based on the skew amount measurement patterns; a paper sheet skew amount detecting part configured to detect a skew amount of the paper sheet based on a displacement between the opposite ends of the paper sheet; a skew correction amount calculating part configured to calculate skew correction amounts of the respective colors based on the skew amounts; and a skew correcting part configured to shift the images to correct the skews by recording input image data in plural lines of a line memory, dividing the input image data into plural areas in a main scanning direction, and setting line delay amounts on an area basis based on the skew correction amounts.

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Номер записи: 3
14-06-2012 дата публикации

Sheet feeding device, control method for the sheet feeding device, and image forming apparatus incorporating the sheet feeding device

Номер: US20120146281A1
Автор: Haruyuki Honda, Hiroshi Fujiwara, Mizuna Tanaka, Tomoyoshi Yamazaki, Toshikane Nishii
Принадлежит: Ricoh Co Ltd

A sheet feeding device includes a feeding device and a detector. The feeding device is configured to feed a sheet to a destination. The detector is configured to detect the sheet at the destination. If the detector does not detect the sheet within a predetermined time after the start of preparation for a feeding operation by the feeding device, it is determined that the sheet is misfed. Further, the start of the feeding operation of a sheet is changed in accordance with the result of detection by the detector of the presence or absence of a sheet standing by at the destination.

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Номер записи: 4
09-08-2012 дата публикации

Automatic document feeder

Номер: US20120200027A1
Автор: Kenji Korenaga
Принадлежит: Murata Machinery Ltd

An automatic document feeder includes a first roller portion on the first transportation path to feed an original to a scanning position to scan a first face of the original, a second roller portion on a second transportation path to transport the scanned original, a third roller portion on the second transportation path to feed the original to the scanning position to scan a second face of the original, a fourth roller portion on the first transportation path to transport the scanned original, and a transporting speed adjusting unit gaining a circumferential velocity of the second roller portion than the one of the first roller portion and gaining a circumferential velocity of the fourth roller portion than the one of third roller portion, when the original is transported from the first transportation path to the second transportation path and from the second transportation path to the first transportation path, respectively.

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Номер записи: 5
14-02-2013 дата публикации

Sheet processing apparatus that detects displacement in sheet width direction and skew of sheet, image forming apparatus, and control method

Номер: US20130036886A1
Автор: Hitoshi Kato, Naoki Ishikawa, Taishi TOMII, Yasuo Fukatsu
Принадлежит: Canon Inc

A sheet processing apparatus capable of high-speed and accurate detection of a lateral displacement and a skew of a sheet. A motor laterally shifts the sensors during sheet conveyance by a conveying motor, to determine first and second positions of the sheet lateral edge detected respectively by first and second sensors. A finisher controller determines a third position of the lateral edge of the sheet closer to a sheet trailing edge, based on the first and second positions and an amount of conveyance of the sheet from when the first position is detected to when the second position is detected. A lateral displacement of the sheet is corrected by laterally shifting the sheet according to the third position of the sheet lateral edge.

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Номер записи: 6
07-03-2013 дата публикации

Sheet conveying apparatus and image forming apparatus

Номер: US20130056926A1
Автор: Kohei Deno, Masaki Maeno
Принадлежит: Canon Inc

Disclosed is a sheet conveying apparatus including a skew correction apparatus of a sheet which prevents the sheet from encroaching on a nip portion of a registration roller by backward rotation of the registration roller and also controls the backward rotation of the registration roller to the minimum so as to prevent the curling the sheet. The skew of the sheet is corrected for by the leading edge of the sheet abutting the registration roller to bend the sheet so as to form a loop in the sheet. A resist sensor detects a time difference of passing time between the advanced leading edge and the retarded leading edge in the downstream leading edge of the sheet conveyed by the upstream roller, detects the skew amount of the sheet based on the time difference, and changes the backward rotation time of the registration roller depending on the skew amount.

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Номер записи: 7
30-05-2013 дата публикации

SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20130134654A1
Автор: Suzuki Yohei
Принадлежит: CANON KABUSHIKI KAISHA

A sheet conveying apparatus including, a conveying portion conveying a sheet; a rotation detection portion rotatably provided; a sensor portion detecting the conveyed sheet based on a rotational position of the rotation detection portion; a rotation transmission portion transmitting a rotational driving force to the rotation detection portion to rotate the rotation detection portion in a predetermined rotational direction after the rotation detection portion is rotated by being pushed by the leading end of the sheet; and an urging unit configured to apply an urging force to the rotation detection portion so that the rotation detection portion comes into contact with a surface of the sheet, thereafter the rotation detection portion is returned to a waiting position along with the passage of the rear end of the sheet through the rotation detection portion after the rotation detection portion is rotated by the rotational driving force of the rotation transmitting unit. 1. (canceled)2. A sheet conveying apparatus comprising:a conveying portion configured to convey a sheet;a rotating portion configured to have an abutting portion which abuts against a leading end of the sheet conveyed by the conveying portion at a waiting position, wherein the rotating portion is rotated in a predetermined rotational direction by the abutting portion being pushed by the leading end of the sheet, and the rotating portion locates at the waiting position, where a leading end of a subsequent sheet abuts against the abutting portion, by rotating in the predetermined rotational direction after a leading end of a preceding sheet abuts against the abutting portion;a sensor portion configured to detect the sheet to be conveyed based on a rotational position of the rotating portion; anda rotation transmission portion configured to transmit a rotational driving force to the rotating portion to rotate the rotating portion in the predetermined rotational direction after the rotating portion is ...

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Номер записи: 8
30-05-2013 дата публикации

SHEET CONVEYANCE DEVICE

Номер: US20130134662A1
Автор: Moriya Masaaki
Принадлежит: CANON KABUSHIKI KAISHA

A sheet conveyance device that is capable of appropriately correcting a position of a sheet in the sheet width direction with respect to an image transferred thereon. A shift mechanism shifts a sheet conveyed in a sheet width direction perpendicular to a sheet conveyance direction. A first sensor detects one side edge of the sheet in the sheet width direction. A second sensor detects the other side edge of the sheet in the sheet width direction. A control unit drives the shift mechanism so that the center of the sheet in the sheet width direction is coincident with a predetermined target position based on the gap of the first and second sensors, detection timing of the one side edge by the first sensor, detection timing of the other side edged by the second sensor, and a predetermined standard value of sheet width. 1. A sheet conveyance device comprising:a shift mechanism configured to shift a sheet conveyed in a sheet width direction perpendicular to a sheet conveyance direction;a first sensor configured to detect one side edge of the sheet in the sheet width direction;a second sensor configured to be arranged at a different position from said first sensor in the sheet width direction and to detect the other side edge of the sheet in the sheet width direction; anda control unit configured to drive said shift mechanism so that the center of the sheet in the sheet width direction is coincident with a predetermined target position based on the gap of said first and second sensors, detection timing of the one side edge by said first sensor during a shift of the sheet in the sheet width direction, and detection timing of the other side edged by said second sensor during the shift of the sheet.2. The sheet conveyance device according to claim 1 , wherein said control unit determines difference between an actual sheet width of the sheet and a standard value of the sheet width based on the detection timing of the one side edge by said first sensor during the shift of the ...

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Номер записи: 9
04-07-2013 дата публикации

METHOD AND APPARATUS FOR SHEET AND CARTON BLANK ALIGNING

Номер: US20130168922A1
Автор: Machamer David E.
Принадлежит: Tamarack Products, Inc.

Apparatus and a method aligns and orients a moving article, such as a sheet or a carton blank during processing of the sheet/carton blank, relative to its intended path of travel through a conveyor-type assembly machine. In one embodiment, a pair of sensors detect passage of respective laterally spaced leading edge portions of the moving sheet and provide inputs to a controller which, in turn, provides an appropriate signal to one of a pair of spaced sheet-gripping rollers in contact with the respective laterally spaced portions of the sheet for aligning, or squaring, the sheet's leading edge relative to its intended path through the assembly machine. In another embodiment, a single sensor detects a linear lateral edge of the sheet and a single drive element orients and aligns the sheet's edge so that it is coincident with and parallel to a linear target line defining the intended path of travel. 1. A method for aligning a linear edge of a moving sheet-like article transverse to an intended direction of travel of the sheet-like article , said method comprising:positioning first and second drive mechanisms in contact with respective laterally spaced first and second sections of the sheet-like article for displacing the sheet-like article generally in the intended direction of travel, wherein said first and second sheet-like article sections are disposed along and include the linear edge of the sheet-like article;positioning first and second sensors in alignment with the first and second portions of the sheet-like article to respectively detect passage of the first portion of the linear edge past the first detector and passage of the second portion of the linear edge past the second detector for providing an output signal representing a difference in position relative to the intended direction of travel of the first and second portions of the sheet-like article; andcoupling a controller to said first and second sensors and to at least one of said drive mechanisms, ...

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Номер записи: 10
25-07-2013 дата публикации

Sheet aligning device and image forming apparatus including the same

Номер: US20130187331A1
Автор: Junji Shirakawa, Takayuki Muneyasu, Takeshi Watanabe, Yutaka Shoji
Принадлежит: Ricoh Co Ltd

A sheet aligning device may include a sheet conveyance path; a detecting unit configured to detect a side edge of a sheet being conveyed in the sheet conveyance path; a stopper on an upstream side of the detecting unit and configured to open/close so as to allow/prevent passage of the sheet and to position a leading edge of the sheet; a first conveying unit on an upstream side of the stopper, the first conveying unit including a pair of first rollers configured to come in contact with/ separate from each other; a second conveying unit on an upstream side of the first conveying unit, the second conveying unit including a pair of second rollers configured to come in contact with/separate from each other; and a horizontal movement unit configured to move the pair of first rollers in an axial direction based on a detection result output by the detecting unit.

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Номер записи: 11
01-08-2013 дата публикации

SHEET CONVEYING APPARATUS, IMAGE FORMING APPARATUS, SHEET CONVEYING DISTANCE CALCULATION APPARATUS AND SHEET LENGTH CALCULATION APPARATUS

Номер: US20130195482A1
Автор: KAMIYA TAKURO, KOBASHI Akira, KUDO Koichi, Nakura Makoto, TAKAI Shingo, UEDA Naoto, UEDA Satoshi
Принадлежит:

A sheet conveying apparatus includes a sheet conveying unit that conveys a sheet; a conveying amount measuring unit that measures a conveying amount of the sheet conveyed by the sheet conveying unit; a first detection unit that detects the sheet downstream of the sheet conveying unit in a conveying direction of the sheet; a second detection unit that detects the sheet upstream of the sheet conveying unit in the conveying direction of the sheet; and a conveying distance calculation unit that calculates a conveying distance of the sheet based on the measured result by the conveying amount measuring unit and the detected results detected by the first detection unit and the second detection unit. 1. A sheet conveying apparatus comprising:a sheet conveying unit that conveys a sheet;a conveying amount measuring unit that measures a conveying amount of the sheet conveyed by the sheet conveying unit;a first detection unit that detects the sheet downstream of the sheet conveying unit in a conveying direction of the sheet;a second detection unit that detects the sheet upstream of the sheet conveying unit in the conveying direction of the sheet; anda conveying distance calculation unit that calculates a conveying distance of the sheet based on the measured result by the conveying amount measuring unit and the detected results detected by the first detection unit and the second detection unit.2. The sheet conveying apparatus according to claim 1 ,wherein the conveying distance calculation unit calculates the conveying distance of the sheet based on the conveying amount measured by the conveying amount measuring unit between a first time when the first detection unit detects passing of a front end portion of the sheet and a second time when the second detection unit detects passing of a rear end surface of the sheet.3. The sheet conveying apparatus according to claim 1 , a drive roller which is driven to be rotated by a driving unit, and', 'a driven roller which is rotated in ...

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Номер записи: 12
19-09-2013 дата публикации

PAPER SHEET PROCESSING DEVICE

Номер: US20130241143A1
Автор: NIREKI Takao
Принадлежит: Universal Entertainment Corporation

The purpose of the present invention is to provide a paper sheet processing device with a reduced number of components for detecting the presence of paper sheets on a conveyance path and which is capable of reducing costs. To achieve this aim, the paper sheet processing device has: an insertion port where paper sheets are inserted; a conveyance path along which paper sheets inserted into the insertion port are conveyed; sensors () that detect whether or not paper sheets are present on the conveyance path; a read unit () capable of reading inserted paper sheets; and a control unit that performs paper sheet detection processing whereby paper sheets present on the conveyance path are detected, based on the detection results of the sensors () and the read results of the read unit (). 1. A paper sheet processing device including:an insertion port through which a paper sheet is inserted, a conveyance path in which the paper sheet inserted into the insertion port is conveyed, a sensor for detecting the paper sheet in the conveyance path, and a read unit capable of reading the paper sheet inserted,the paper sheet processing device, comprisinga control unit configured to execute paper sheet detection processing for detecting the paper sheet in the conveyance path, based on a detection result from the sensor and a read result from the read unit.2. The paper sheet processing device according to claim 1 , wherein the control unit executes the paper sheet detection processing before the paper sheet is inserted into the insertion port.3. The paper sheet processing device according to claim 1 , further comprising a conveyor configured to convey the paper sheet in the conveyance path claim 1 ,wherein when the paper sheet is detected by the paper sheet detection processing, the control unit performs the paper sheet detection processing again after the paper sheet is conveyed by the conveyor.4. The paper sheet processing device according to claim 2 , further comprising a conveyor ...

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Номер записи: 13
19-09-2013 дата публикации

MEDIUM FEEDING DEVICE

Номер: US20130241144A1
Автор: YASUKAWA Ryoichi
Принадлежит: PFU LIMITED

A medium feeding device includes a feeding roller which conveys a medium S in a conveying direction, a brake roller that is arranged to press the feeding roller with a predetermined pressure, and a separating power generating device which is connected to the brake roller and generates rotational load in a direction counter to the conveying direction with respect to the brake roller . The separating power generating device includes a torque limiter which generates an upper limit torque T which is a fixed load as a first load generating unit, and an electromagnetic brake which can change the generated load as a second load generating unit. The torque limiter and the electromagnetic brake are connected in parallel to the brake roller 1. A medium feeding device comprising:a feeding roller that conveys a medium in a conveying direction;a brake roller that is arranged to press the feeding roller with a predetermined pressure; anda rotational load generating unit that is connected to the brake roller and generates rotational load in a direction counter to the conveying direction with respect to the brake roller, whereinthe rotational load generating unit includes a first load generating unit that generates a fixed load and a second load generating unit that is able to change the generated load, the first load generating unit and the second load generating unit being connected in parallel to the brake roller.2. The medium feeding device according to claim 1 , further comprising a control device that controls the medium feeding device claim 1 , wherein the rotational load generating unit changes the rotational load in a predetermined period of time after the control device determined to change the rotational load.3. The medium feeding device according to claim 1 , further comprising a control device that controls the medium feeding device claim 1 , wherein the rotational load generating unit changes the rotational load claim 1 , at timing immediately before the media enter ...

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Номер записи: 14
19-09-2013 дата публикации

MEDIUM FEEDING DEVICE

Номер: US20130241145A1
Автор: YASUKAWA Ryoichi
Принадлежит: PFU LIMITED

A medium feeding device includes a separating power generating device which causes a brake roller to generate a rotational load in a direction counter to a conveying direction. The device includes a torque limiter which generates a load of a predetermined upper limit torque T, a torque limiter which is arranged in series with the torque limiter on a power transmission path to the brake roller and generates a load of an upper limit torque T smaller than the torque T, and an electromagnetic clutch which switches between connection and disconnection between the power transmission path and a bypass route which bypasses the torque limiter . The device can change the rotational load of the brake roller to the torque T or the torque T by the switching of the electromagnetic clutch 1. A medium feeding device comprising:a feeding roller that conveys a medium in a conveying direction;a brake roller arranged to be in pressure contact with the feeding roller; and a first load generating unit that is directly connected to the brake roller and generates a load of a first predetermined torque based on a driving power generated by a driving source;', 'a second load generating unit that is arranged in series with the first load generating unit on a power transmission path along which the rotational load is transmitted to the brake roller, and that generates a load of a second torque smaller than the first torque; and', 'a switching unit that is connected to the first load generating unit side rather than the second load generating unit side on the power transmission path and switches between connection and disconnection between the power transmission path and a bypass route which bypasses the second load generating unit,, 'a rotational load generating unit that is connected to the brake roller and causes the brake roller to generate a rotational load in a direction counter to the conveying direction, the rotational load generating unit comprisingwherein the rotational load of the ...

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Номер записи: 15
10-10-2013 дата публикации

SHEET MEDIUM DETECTION DEVICE AND SHEET MEDIUM PROCESSING DEVICE

Номер: US20130264770A1
Автор: Jiang Tianxin, Liu Yang, Yang Min, Zheng Lei
Принадлежит:

The present invention provides a sheet medium detection device, which comprises a light guide bar () provided on one side of a medium conveying passage () and provided with a plurality of reflection surfaces () arranged with Intervals along a length direction of the light guide bar, wherein each of the reflection surfaces () reflects the light within the light guide bar () to the other side of the medium conveying passage (); a plurality of light receivers (), each of which, being opposite to a reflection surface () of the light guide bar, is provided on the other side of the medium conveying passage (); and a point light source () provided at least on one end of the light guide bar along the length direction of the light guide bar, wherein each of the reflection surfaces () is provided obliquely to form an obtuse angle relative to the light guide bar () on the side where the point light source () locates. The present invention also provides a sheet medium processing device which comprises the detection device described above. The sheet medium detection device has a low cost and high adaptability. 1. A sheet medium detection device , comprising:a light guide bar provided on one side of a medium conveying passage and provided with a plurality of reflection surfaces arranged with Intervals along a length direction of the light guide bar, wherein each of the reflection surfaces reflects the light within the light guide bar to the other side of the medium conveying passage;a plurality of light receivers, each of which, being opposite to a reflection surface of the light guide bar, is provided on the other side of the medium conveying passage; anda point light source provided at least on one end of the light guide bar along the length direction of the light guide bar, wherein each of the reflection surfaces is provided obliquely to form an obtuse angle relative to the light guide bar on the side where the point light source locates.2. The sheet medium detection device ...

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Номер записи: 16
24-10-2013 дата публикации

Sheet conveyance device for conveying sheet

Номер: US20130277172A1
Автор: Tadahiro Sako
Принадлежит: Canon Inc

Side edge position detection processing includes adjustment of the light amount of light-emitting devices, a process of determining a threshold value for detecting the side edge position, and a process of reading out the side edge position. If a sensor is provided between a transfer roller pair and a registration roller pair as in conventional devices, sufficient processing time cannot be ensured. Therefore, the sensor is provided between the conveyance roller pair and the registration roller pair, and the light amount adjustment is executed before the registration roller pair that is being stopped for skew correction is driven. Further, the processes of determining the threshold and reading out the side edge position are executed after driving of the registration roller pair is resumed.

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Номер записи: 17
24-10-2013 дата публикации

POSITION DETECTION DEVICE FOR DETECTING SHEET POSITION, CONVEYANCE DEVICE, AND IMAGE FORMATION DEVICE

Номер: US20130277909A1
Автор: Ino Koichiro
Принадлежит: CANON KABUSHIKI KAISHA

A threshold for detecting a position of a lateral edge of a sheet is more accurately determined, whereby the accuracy of detection of the lateral edge position of the sheet is improved. A line sensor includes a plurality of element blocks. Each element block includes a plurality of pixels. The threshold for detecting the lateral edge position is determined based on a light level and a dark level of signals output from an element block that is actually used to detect the lateral edge position of the sheet. 1. A position detection device for detecting a position of a sheet , comprising:a light detection unit configured to detect reflected light or transmitted light from the sheet, and including a plurality of element blocks arranged in a line, each of the plurality of element blocks including a plurality of reading pixels;a threshold determination unit configured to determine a threshold based on a signal output from one of the plurality of element blocks that faces a position of a lateral edge of the sheet in a lateral direction perpendicular to a conveyance direction of the sheet;a binarization unit configured to compare signals output by the plurality of reading pixels included in each of the plurality of element blocks with the threshold determined by the threshold determination unit, to binarize the signals; anda position determining unit configured to determine, as the position of the lateral edge, a position at which the binary signal output by the binarization unit changes.3. The position detection device according to claim 2 , whereinthe threshold determination unit determines the threshold based on a largest value and a smallest value of levels of the signals output from the plurality of reading pixels included in the element block selected by the element selection unit.4. The position detection device according to claim 3 , whereinthe threshold determination unit determines, as the threshold, a middle value between the largest and smallest values of the ...

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Номер записи: 18
14-11-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130300053A1
Автор: OTSUKA Shinichiro, Shinohara Masaaki
Принадлежит: RISO KAGAKU CORPORATION

An image forming apparatus includes a suction fan unit, a conveyor belt, a plurality of sheet-pressing rollers, and a control unit. The conveyor belt conveys a recording sheet suctioned by the suction fan unit, to a printer part. The sheet-pressing rollers are arranged at intervals in a main scanning direction orthogonal to a conveying direction of the recording sheet by the conveyor belt, and press the recording sheet onto the conveyor belt before the recording sheet is conveyed to the printer part. When a type of the recording sheet is a type meeting a predetermined condition, the control unit controls a suction strength of a suction fan unit such that a suction strength at both end portions of the suction part in the main scanning direction is higher than a suction strength at a central portion of the suction part in the main scanning direction. 1. An image forming apparatus comprising:a suction part;a conveyor belt that conveys a recording sheet suctioned by the suction part, to an image forming part;a plurality of sheet-pressing rollers that is arranged at intervals in a main scanning direction orthogonal to a conveying direction of the recording sheet by the conveyor belt, the sheet-pressing rollers pressing the recording sheet onto the conveyor belt before the recording sheet is conveyed to the image forming part; anda controller that controls suction strength of the suction part such that when a type of the recording sheet is a type meeting a predetermined condition, there is achieved a distribution in which a suction strength at both end portions of the suction part in the main scanning direction is higher than a suction strength at a central portion of the suction part in the main scanning direction.2. The image forming apparatus according to claim 1 , whereinthe suction part has a plurality of negative-pressure generating parts that generates a negative pressure on a suction face of the conveyor belt,the negative-pressure generating parts are associated ...

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Номер записи: 19
14-11-2013 дата публикации

SHEET PROCESSING APPARATUS THAT CORRECTS LATERAL DEVIATION OF A SHEET

Номер: US20130300055A1
Автор: Ishikawa Naoki, KATO Hitoshi
Принадлежит: CANON KABUSHIKI KAISHA

A sheet processing apparatus which enables a sheet to be stopped at a target position with precision even when the sheet is stopped by moving a heavy unit such as a shift unit. A drive unit moves a moving unit so as to move a sheet, which is being conveyed, in a direction perpendicular to a conveying direction of the sheet. An output unit detects movement of the moving unit and output a signal in synchronization with movement of the moving unit. A control unit issues a stop instruction to the drive unit based on a delay time from when a start instruction to the drive unit is issued until when the signal in synchronization with the movement of the drive unit is output, and a target moving amount required for the moving unit to move to a target position. 1. A sheet processing apparatus comprising:a moving unit configured to move a sheet, which is being conveyed, in a direction perpendicular to a conveying direction of the sheet;a drive unit configured to move said moving unit;an output unit configured to detect movement of said moving unit and output a signal in synchronization with movement of said moving unit; anda control unit configured to issue a stop instruction for stopping driving to said drive unit based on a delay time from when said control unit issues a start instruction for starting driving to said drive unit until when the signal is output from said output unit, and a target moving amount required for said moving unit to move to a target position.2. A sheet processing apparatus according to claim 1 , wherein said control unit issues the stop instruction the delay time before timing with which said moving unit reaches the target position based on the start instruction.3. A sheet processing apparatus according to claim 1 , wherein said output unit includes a pulse encoder provided in said moving unit.4. A sheet processing apparatus according to claim 1 , wherein said drive unit transmits a driving force to said moving unit via a belt claim 1 , andthe delay ...

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Номер записи: 20
14-11-2013 дата публикации

IMAGE FORMING APPARATUS AND SHEET RECONVEYANCE PROPRIETY DISCRIMINATING METHOD

Номер: US20130300056A1
Автор: Kai Teruhito
Принадлежит: CANON KABUSHIKI KAISHA

Provided is a technology capable of identifying presence/absence of buckling at an occurrence of a jam and determining more appropriately whether or not to perform automatic sheet discharge. A sound collecting device provided on a conveying path of an image forming apparatus is used to collect sound generated from a sheet at the occurrence of the jam. Generated spectrum data is obtained by analyzing characteristics of the collected sound. The generated spectrum data is compared with reference spectrum data, to thereby identify the presence/absence of the buckling and discriminate the conveyance propriety of the sheet. 1. An image forming apparatus , comprising:a conveyance unit for conveying a sheet along a conveying path;a microphone for collecting sound generated from the conveyed sheet;a detecting unit for detecting a jam of the conveyed sheet;a control unit for controlling to stop conveying sheet by the conveyance unit if the jam of the sheet is detected by the detecting unit;an analysis unit for analyzing a frequency of the sound during a period in which the sheet is being conveyed if the jam of the sheet is detected; anda decision unit for deciding whether or not the conveyance unit is enabled to discharge the sheet based on the analyzed frequency.2. The image forming apparatus according to claim 1 , wherein:the decision unit comprises a determination unit for determining whether or not an intensity of a frequency component falls within a predetermined range, that is corresponding to the frequency, for each frequency based on the analyzed frequency; andthe decision unit decides whether or not the conveyance unit is enabled to discharge the sheet based on a number of frequencies whose intensity of the frequency component falls within the predetermined range.3. The image forming apparatus according to claim 1 , wherein the control unit causes claim 1 , based on the analyzed frequency claim 1 , in a case where a number of frequencies whose intensity of the ...

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Номер записи: 21
21-11-2013 дата публикации

SHEET CONVEYING APPARATUS

Номер: US20130307213A1
Автор: Adachi Noriaki
Принадлежит: CANON KABUSHIKI KAISHA

A sheet conveying apparatus irradiates a conveyed sheet with light from a light source to receive reflected light by a line sensor and detects a side edge position of the sheet based on an output of a reading pixel of the line sensor. The reading pixel within a predetermined range facing the sheet in the line sensor is determined to be used for light quantity adjustment of the light source based on a size in a width direction orthogonal to a sheet conveying direction, and the light quantity of the light source is adjusted based on the output of the determined reading pixel. A threshold value for detecting the side edge position of the sheet is determined based on outputs of reading pixels within the region facing the sheet and outputs of the reading pixels within the region not facing the sheet in the line sensor. 1. A sheet conveying apparatus , comprising:a conveying unit configured to convey a sheet;an acquisition unit configured to acquire a size of the sheet in a width direction orthogonal to a conveying direction of the sheet;a light source configured to irradiate the sheet with light;a line sensor configured to receive light from the light source and including a plurality of reading pixels for detecting a side edge position of the sheet in the width direction;a determination unit configured to determine the reading pixels within a predetermined range facing the sheet in the line sensor as reading pixels to be used for light quantity adjustment of the light source based on the size acquired by the acquisition unit;a light quantity adjustment unit configured to adjust a light quantity of the light source based on outputs from the reading pixels determined by the determination unit;a threshold value determination unit configured to determine, after the light quantity is adjusted by the light quantity adjustment unit, a threshold value for detecting the side edge position of the sheet based on outputs from the reading pixels within the region facing the sheet in ...

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Номер записи: 22
28-11-2013 дата публикации

MEDIUM PROCESSOR HAVING MEDIUM STORING BOXES FLEXIBLY LOADABLE IN A SLOT OF A MEDIUM STORAGE

Номер: US20130313773A1
Автор: KOJIMA Ryousuke, KOMATSU Hirokazu, OHARA Shinji
Принадлежит: OKI ELECTRIC INDUSTRY CO., LTD.

A medium processor is provided with a medium storage which can house two small storing boxes next to each other and has plural slots into which the two small storing boxes can be detachably loaded. Thus, the two small storing boxes can be loaded in a space equivalent to one conventional bill storing box, and the small storing boxes can be detached for servicing even when there are two small storing boxes loaded in one slot. Thus, various kinds of media can be handled without impairing maintainability. 1. A medium processor comprising:a conveyance channel conveying a medium;at least one medium-storing box removably set in said processor to communicate with said conveyance channel for storing the medium conveyed on said conveyance channel; anda medium storage including at least one slot for detachably housing said at least one medium-storing box, said slot being capable of housing said at least one medium-storing box next to each other.2. The medium processor according to claim 1 , wherein said at least one medium-storing box is provided two claim 1 , said two medium-storing boxes being loaded in said slot such that they are stacked one above the other in the vertical direction.3. The medium processor according to claim 2 , wherein one of said two medium-storing boxes is of a large size which is dimensioned to be loaded in single into said slot claim 2 , and another of said two medium-storing boxes is a small medium-storing box which is smaller than said large storing box and dimensioned to be loadable in the slot so that the slot can include two of said small medium-storing box claim 2 ,said slot having a size capable of loading therein said large storing box or two of said small storing boxes.4. The medium processor according to claim 3 , wherein said small storing box includes an upper small storing box to be loaded in an upper portion of said slot and a lower small storing box to be loaded in a lower portion of said slot claim 3 , said upper small storing box ...

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Номер записи: 23
12-12-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130328262A1
Автор: Fujita Keiko, Kamiyama Nobuto, Kato Daijiro, Koshida Kohei, Ootsuka Yuya, SAITO Hiroshi
Принадлежит:

An image forming apparatus includes a manual feed portion provided on a side surface of a housing that accommodates an image forming portion and having an abutting portion against which a downstream end in a sheet feeding direction of a sheet inserted into a gap between the manual feed portion and the side surface abuts. The manual feed portion also includes a holding portion configured to hold the sheet such that a sheet surface is held along the side surface of the housing in the condition in which the downstream end of the sheet abuts against the abutting portion. 1. An image forming apparatus comprising:an image forming portion;a housing configured to accommodate the image forming portion; and a feed roller configured to feed the sheet;', 'an abutting portion against which a downstream end in a sheet feeding direction of the sheet that has been manually inserted from above abuts;', 'a holding portion configured to hold the sheet abutting against the abutting portion such that a sheet surface of the sheet is held along the side surface of the housing; and', 'a pressing portion configured to press the downstream side in the sheet feeding direction of the sheet held by the holding portion to the feed roller., 'a manual feed portion provided on a side surface of the housing and configured to store a manually inserted sheet and to feed the sheet to the image forming portion, the manual feed portion comprising2. The image forming apparatus according to claim 1 , wherein the holding portion includes:a first restricting member having a first sheet restricting portion configured to restrict the sheet surface of the manually inserted sheet and a first sheet width restricting portion configured to restrict a first end of the sheet in a sheet width direction orthogonal to the sheet feeding direction of the sheet; anda second restricting member disposed to face the first restricting member in the sheet width direction and having a second sheet restricting portion configured ...

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Номер записи: 24
19-12-2013 дата публикации

IMAGE FORMING APPARATUS AND SHEET ADJUSTING DEVICE INCORPORATED THEREIN

Номер: US20130334769A1
Автор: YAMAZAKI Tomoyoshi
Принадлежит: RICOH COMPANY, LTD.

An image forming apparatus includes an image forming device and a sheet adjusting device to adjust a lateral position of the sheet by moving a sheet in a lateral direction perpendicular to a sheet conveyance direction. The sheet adjusting device moves a driving roller in one of a first direction and a second direction for adjusting a lateral position of the sheet between the driving roller and a driven roller and then adjusting a lateral position of the driven roller to the driving roller by moving the driving roller in the second direction until the misaligned driven roller laterally contacts respective stoppers to restrict a range of lateral movement of the driven roller while the sheet is separated from the driving roller and the driven roller and by further moving the driving roller to a predetermined position while the driven roller remains contacting the stoppers. 1. An image forming apparatus comprising:an image forming device to form an image on a surface of a sheet of recording media;a sheet adjusting device positioned upstream from the image forming device to adjust a lateral position of the sheet by moving the sheet in a lateral direction perpendicular to a sheet conveyance direction, a driving unit;', 'a moving unit connected to the driving unit;', 'a driving roller rotatable by the driving unit and movable laterally by the moving unit;', 'a driven roller rotatable with rotation of the driving roller while pressing and holding the sheet with the driving roller and movable laterally with movement of the driving roller; and', 'stoppers disposed contactable with both end portions of the driven roller to restrict a range of movement of the driven roller laterally; and, 'the sheet adjusting device comprisinga controller operatively connected to the sheet adjusting device to drive the driving unit,the controller causing the moving unit to move the driving roller in one of a first direction toward one axial end of the driving roller and a second direction ...

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Номер записи: 25
16-01-2014 дата публикации

SHEET THICKNESS DETECTOR AND IMAGE FORMING APPARATUS INCLUDING SAME

Номер: US20140015192A1
Автор: FUNADA Naohiro, Ikeda Yuji, KONDOH Tomohide, Nishizaki Shingo, Okamura Hiroshi, Ozaki Yusuke, SATOH Masashi, TAKENAKA Ryo, WAKABAYASHI Yuu
Принадлежит: RICOH COMPANY, LTD.

A sheet thickness detector incorporated in an image forming apparatus includes a sheet conveying member to rotate and convey a sheet in a sheet conveyance direction, a driven sheet conveying member to contact the sheet conveying member and form at least one first transfer nip therebetween in a lateral direction and to displace by an amount equivalent to a thickness of the sheet passing through the first transfer nip and rotated with the sheet conveying member in the sheet conveyance direction, a displacement member to contact the sheet conveying member and form a second transfer nip smaller than the first transfer nip in the lateral direction and to displace by an amount equivalent to the thickness of the sheet passing through the second transfer nip and supported at a support member, and a displacement amount detector to detect an amount of displacement of the displacement member. 1. A sheet thickness detector comprising:a sheet conveying member to rotate and convey a sheet in a sheet conveyance direction;a driven sheet conveying member to contact the sheet conveying member and form at least one first transfer nip therebetween in a predetermined range in a lateral direction perpendicular to the sheet conveyance direction, the driven sheet conveying member being biased to displace by an amount equivalent to a thickness of the sheet passing through the at least one first transfer nip and rotated about a rotary shaft thereof with the sheet conveying member in the sheet conveyance direction;a first displacement member to contact the sheet conveying member and form a second transfer nip that is smaller than the at least one first transfer nip in the lateral direction, the first displacement member being biased to displace by an amount equivalent to the thickness of the sheet passing through the second transfer nip;a first support member having a free end, at which the first displacement member is supported; anda displacement amount detector to detect the amount of ...

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Номер записи: 26
23-01-2014 дата публикации

A MULTIFEED PROCESSING PROGRAM STORED IN A NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM WITH MEASURING STEP FOR MULTIFEED DETECTION PATTERN

Номер: US20140021676A1
Автор: NIWANO Tadashi, Suzuki Shinji
Принадлежит: PFU LIMITED

A multifeed processing apparatus includes a control unit and a storage unit and is connected to a multifeed detecting mechanism and an image reading mechanism. The control unit includes (i) a measuring unit that measures a multifeed detection pattern from any one or both of an output of the multifeed detecting mechanism and an image of a medium read by the image reading mechanism, (ii) a determining unit that determines whether the measured multifeed detection pattern is included in a multifeed disable pattern stored in the storage unit, (iii) a reading control unit that regards a multifeed detection performed by the multifeed detecting mechanism as invalid, and causes the image reading mechanism to continue a reading operation, and (iv) a storage control unit that stores the measured multifeed detection pattern as the multifeed disable pattern in the storage unit. 13-. (canceled)4. A multifeed processing program product that makes a control unit of a multifeed processing apparatus that includes the control unit and a storage unit and is connected to a multifeed detecting mechanism and an image reading mechanism implement a multifeed processing method , the multifeed processing method comprising:a measuring step of, when a multifeed is detected by the multifeed detecting mechanism, measuring a multifeed detection pattern of an overlap starting position and an overlap length of a medium, or of the overlap length, or of a medium length and a ratio of the overlap length to the medium length, from any one or both of an output of the multifeed detecting mechanism and an image of the medium read by the image reading mechanism;a determining step of determining whether the multifeed detection pattern measured at the measuring step is included in a multifeed disable pattern which is stored in the storage unit and is the multifeed detection pattern for disabling multifeed detection performed by the multifeed detecting mechanism;a reading controlling step of, when it is ...

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Номер записи: 27
06-02-2014 дата публикации

SHEET HANDLING APPARATUS

Номер: US20140035221A1
Автор: ASARI Yukio, HIRAMITSU Naruaki, MITSUYA Yusuke, NARUOKA Yoshihiko, TODORIKI Toru
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a sheet handling apparatus includes a conveying path to convey a sheet, a processing portion to perform a predetermined process on the sheet while conveying the sheet on the conveying path, a separable roller pair that is arranged at a certain distance from the processing portion on an upstream side or a downstream side in conveying direction, the separable roller pair being adapted to hand over the sheet between the conveying path and the processing portion by holding the sheet with a nip and rotating, a separating mechanism to separate the separable roller pair, and a controller that controls the separating mechanism such that the separable roller pair is separated before or after processing is started with the processing portion on a sheet that is conveyed on the conveying path. 120-. (canceled)21. A sheet handling apparatus comprising:a conveyor conveying a sheet;a weight measuring apparatus measuring weight of the sheet fed on the conveyor into the weight measuring apparatus;a downstream-side separable roller pair that is arranged at a predetermined distance from the weight measuring apparatus on a downstream side in a conveying direction, the downstream-side separable roller pair including rollers having a nip therebetween and being adapted to hand over the sheet between the conveyor and the weight measuring apparatus by the nip of the rollers holding the sheet and rotating the rollers;a separating mechanism configured to separate the downstream-side separable roller pair; anda controller configured to control the separating mechanism wherein the rollers of the downstream-side separable roller pair are brought into contact after the weight measuring apparatus has finished weighing the sheet.22. The apparatus according to claim 21 , further comprising:an upstream-side conveying roller pair having a nip that is arranged on the upstream side in the conveying direction and spaced from the weight measuring apparatus, and a downstream- ...

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Номер записи: 28
06-02-2014 дата публикации

SHEET CONVEYER DEVICE AND IMAGE FORMING APPARATUS

Номер: US20140037350A1
Автор: Suzuki Takashi
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A sheet conveyer, including a manual-feed conveyer path; a first sensor to detect presence of the sheet inserted in the manual-feed conveyer path; an upstream-side conveyer and a downstream-side conveyer to convey the sheet toward a downstream side; a second sensor to detect presence of the sheet in a downstream position with respect to the upstream-side conveyer, the second sensor being switchable between a presence-detectable state and an absence-detectable state; and a controller is provided. The controller measures presence-detecting duration of the sheet by the second sensor and controls the downstream-side conveyer to continue conveying the sheet if the first sensor is detecting presence of the sheet when the second sensor is switched to the absence-detectable state, and if a difference between a value calculated based on the measured presence-detecting duration and a reference value obtained based on a reference sheet length is smaller than a predetermined threshold. 1. A sheet conveyer , comprising:a manual-feed conveyer path, in which a sheet is inserted manually and conveyed along a sheet conveying direction;a first sensor arranged along the manual-feed conveyer path and configured to detect presence of the sheet inserted in the manual-feed conveyer path;an upstream-side conveyer configured to convey the sheet having passed by the first sensor toward a downstream side along the sheet conveying direction;a downstream-side conveyer configured to convey the sheet conveyed by the upstream-side conveyer further toward the downstream side along the sheet conveying direction;a second sensor arranged along the manual-feed conveyer path in a downstream position with respect to the upstream-side conveyer along the sheet conveying direction and configured to detect presence of the sheet in the downstream position with respect to the upstream-side conveyer, the second sensor being switchable between a presence-detectable state, in which the second sensor detects ...

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Номер записи: 29
13-02-2014 дата публикации

SHEET FEEDER AND IMAGE FORMING APPARATUS USING THE SAME

Номер: US20140042690A1
Автор: SEKI Hiroyuki
Принадлежит:

A sheet feeder including a sheet container on which sheets are placed, a transfer roller to transfer the sheets to an image forming unit via a transfer path; a friction pad to transfer the sheets together with the transfer roller; and a movable portion provided on the transfer path to alter a direction of the transfer path based on the sheets. 1. A sheet feeder comprising:a sheet container on which sheets are placed;a transfer roller; andan opposing roller facing the transfer roller to transfer a sheet that has advanced between the transfer roller and the opposing roller,wherein the opposing roller tilts at an angle to a surface of the transfer roller determined by thickness of the sheet that has advanced between the transfer roller and the opposing roller.2. The sheet feeder according to claim 1 , further comprising;a sheet thickness detector to measure thickness of the sheet; anda roller guide driving unit to tilt the opposing roller based on the thickness of the sheet detected by the sheet thickness detector.3. The sheet feeder according to claim 1 , further comprising:a memory device to store property information about the sheets placed on the sheet container;a reading device to read the property information about the sheets placed on the sheet container from the memory device; anda roller guide driving unit to tilt the opposing roller based on the property information stored in the memory device.4. The sheet feeder according to claim 1 , further comprising:a sheet detector to detect a timing with which the sheet is transferred by the transfer roller and passes through the transfer roller and the opposing roller, wherein the roller guide driving unit tilts the opposing roller based on the timing detected by the sheet detector.5. An image forming apparatus comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the sheet feeder of .'} This patent application is a divisional application of U.S. application Ser. No. 13/405,952, filed Feb. 27, 2012 and is ...

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Номер записи: 30
13-02-2014 дата публикации

RECORDING MEDIUM CONVEYING APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20140042692A1
Автор: Matsumoto Yasutaka
Принадлежит: KYOCERA Document Solutions Inc.

A recording medium conveying apparatus includes a conveying path, a conveying section, recording medium detection sensors, a medium interval calculation section, a control section, and a difference calculation section. The difference calculation section sets a medium interval based on an output from the recording medium detection sensor serving as a reference sensor to a reference value and calculates a difference by subtracting a medium interval based on the output from each of the other recording medium detection sensors from the reference value. When, during the continuous conveyance of recording media, a value obtained by subtracting the difference from the medium interval based on the output from any of the other recording medium detection sensors is equal to or less than zero, the control section controls the conveying section to extend the medium interval. 1. A recording medium conveying apparatus , comprising:a conveying path through which a recording medium is conveyed;a conveying section configured to continuously convey the plurality of recording media through the conveying path,a plurality of recording medium detection sensors disposed in the conveying path at different positions in a conveying direction of the recording medium to detect the recording media at each of the positions where the recording medium detection sensors are disposed;a medium interval calculation section configured to calculate, for each recording medium detection sensor, a medium interval in the conveying direction of recording media continuously conveyed through the conveying path by the conveying section based on respective outputs from the plurality of recording medium detection sensors;a control section configured to control the conveyance of the recording medium by the conveying section based on the medium interval calculated for each recording medium detection sensor by the medium interval calculation section; anda difference calculation section configured to set the medium ...

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Номер записи: 31
13-02-2014 дата публикации

METHOD FOR CONTROLLING SHEET CONVEYANCE IN IMAGE FORMING APPARATUS

Номер: US20140042693A1
Автор: Endo Hiroto
Принадлежит:

An actual sheet interval from a preceding sheet to a succeeding sheet is detected by a top sensor. A registration roller is accelerated or decelerated such that the sheet interval from the preceding sheet to the succeeding sheet is an ideal value by the time that the leading edge of the succeeding sheet reaches a transfer nip part. Note that a time period during which acceleration or deceleration is applied and a sub-scan synchronization signal output timing are determined from the actual sheet interval. Note that a recording sheet P does not stop at the registration roller. 1. An image forming apparatus comprising:an image bearing member on which an image is formed;a transfer unit configured to transfer an image formed on the image bearing member onto a sheet;a conveyance unit configured to successively convey a first sheet and a second sheet toward the transfer unit;a detection unit configured to detect a sheet at a predetermined position on an upstream side of the transfer unit in a sheet conveyance direction; andan image forming unit configured to start formation of an image on the image bearing member after a predetermined period from detection of a sheet by the detection unit;wherein if the detection unit detects a leading edge of the second sheet at a predetermined timing after detecting a trailing edge of the first sheet, the conveyance unit conveys the second sheet at a first conveyance speed, which is a conveyance speed at the time when an image is transferred onto a sheet,wherein if the detection unit detects the leading edge of the second sheet at a timing later than the predetermined timing after detecting the trailing edge of the first sheet, the conveyance unit switches the conveyance speed to a second conveyance speed, which is higher than the first conveyance speed, and conveys the second sheet at the second conveyance speed, andwherein the predetermined period in the case where the conveyance unit conveys the second sheet at the second conveyance ...

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Номер записи: 32
27-02-2014 дата публикации

Paper conveying apparatus, jam detection method, and computer-readable, non-transitory medium

Номер: US20140054840A1
Автор: Masanobu Hongo, Takayuki Umi
Принадлежит: PFU Ltd

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can suppress erroneous detection of the occurrence of a jam by a sound due to the sound generated along with conveyance of the paper. The paper conveying apparatus includes a first sound signal generator for generating a first sound signal, at least a part of the first sound signal generator is provided near a separator, a second sound signal generator for generating a second sound signal, at least a part of the second sound signal generator is provided at least at one end of a conveyance path of the paper, and a sound jam detector for determining whether a jam has occurred based on the second sound signal according to a detection method, wherein the sound jam detector changes the detection method based on the first sound signal.

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Номер записи: 33
27-02-2014 дата публикации

PAPER CONVEYING APPARATUS, JAM DETECTION METHOD, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM

Номер: US20140054853A1
Автор: Hongo Masanobu, Umi Takayuki
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium which can precisely determine any occurrence of a jam by a sound which is generated by paper for various types of paper. The paper conveying apparatus includes a sound signal generator, provided with a sound detector near a conveyance path of a paper, for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper, a paper thickness setting module for setting a thickness of a paper conveyed to the conveyance path, and a sound jam detector for determining whether a jam has occurred based on a signal of a specific frequency band in the sound signal, wherein the sound jam detector determines the specific frequency band based on a thickness of the paper. 1. A paper conveying apparatus comprising:a sound signal generator, provided with a sound detector near a conveyance path of a paper, for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper;a paper thickness setting module for setting a thickness of a paper conveyed to the conveyance path; anda sound jam detector for determining whether a jam has occurred based on a signal of a specific frequency band in the sound signal,wherein the sound jam detector determines the specific frequency band based on a thickness of the paper.2. The paper conveying apparatus according to claim 1 , further comprising a paper thickness detector for detecting the thickness of the paper.3. The paper conveying apparatus according to claim 1 , wherein the sound jam detector is configured to decide that the specific frequency band is a first frequency band when the thickness of the paper is a first thickness and decide that the specific frequency band is a second frequency band which is higher than the first frequency band when the thickness of the paper is a second thickness which is thinner than the first thickness.4. The paper ...

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Номер записи: 34
06-03-2014 дата публикации

PAPER CONVEYING APPARATUS, RECOVERY METHOD, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM

Номер: US20140062008A1
Автор: Hongo Masanobu, Umi Takayuki
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can improve the user friendliness in recovery processing when a jam has occurred during conveyance of a paper. The paper conveying apparatus includes a sound signal generator for generating a sound signal, a sound jam detector for determining whether a jam has occurred based on the sound signal, a control module for stopping conveyance of a paper when the sound jam detector determines that the jam has occurred, a paper state detector for detecting a state of the paper, and a recovery processing module for performing recovery processing which resumes conveyance of the paper in accordance with a content of detection of the paper state detector when the sound signal generator outputs a predetermined sound signal after stopping conveyance of the paper by the control module. 1. A paper conveying apparatus comprising:a sound signal generator for generating a sound signal;a sound jam detector for determining whether a jam has occurred based on the sound signal;a control module for stopping conveyance of a paper when the sound jam detector determines that the jam has occurred;a paper state detector for detecting a state of the paper; anda recovery processing module for performing a recovery processing which resumes conveyance of the paper in accordance with a content of detection of the paper state detector when the sound signal generator outputs a predetermined sound signal after stopping the conveyance of the paper by the control module.2. The paper conveying apparatus according to claim 1 , further comprising an interface claim 1 , wherein the recovery processing module notifies the content of the recovery processing through the interface to an outside of the paper conveying apparatus after stopping the conveyance of the paper by the control module.3. The paper conveying apparatus according to claim 1 , further comprising a display claim 1 , wherein ...

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Номер записи: 35
20-03-2014 дата публикации

PAPER CONVEYING DEVICE

Номер: US20140077450A1
Автор: MINOWA Yousuke
Принадлежит: RISO KAGAKU CORPORATION

A paper conveying device includes: a conveyance path, along which paper is conveyed; paper jam removal zones provided side by side along the conveyance path; paper detection sensors respectively provided in the paper jam removal zones for detecting the presence or absence of paper; a paper jam detecting section for detecting paper jam based on output signals from the paper detection sensors; a signal storing section for storing previous signal statuses just before current signal statuses of the output signals of the paper detection sensors; a display section for displaying one of the paper jam removal zones; and a display controlling section for identifying the one of the paper jam removal zones based on the current signal statuses and the previous signal statuses of the paper detection sensors when paper jam is detected, and displaying the identified paper jam removal zone on the display section. 1. A paper conveying device comprising:a conveyance path, along which paper is conveyed;a plurality of paper jams removal zones for removing jammed paper provided side by side along the conveyance path;a plurality of paper detection sensors respectively provided in the paper jam removal zones for detecting the presence or absence of paper at the position of each paper detection sensor;paper jam detecting means for detecting paper jam based on output signals from the paper detection sensors;signal storing means for storing previous signal statuses just before current signal statuses of the output signals of the paper detection sensors;a display section for displaying one of the paper jam removal zones for removing the paper jam; anddisplay controlling means for identifying the one of the paper jam removal zones based on a combination of the current signal statuses obtained from the paper detection sensors and the previous signal statuses stored in the signal storing means when paper jam is detected by the paper jam detecting means and displaying the identified paper jam ...

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Номер записи: 36
20-03-2014 дата публикации

Medium conveyance apparatus

Номер: US20140079460A1
Автор: Shingo Kanaya
Принадлежит: PFU Ltd

A medium conveyance apparatus including a first unit on one side of a conveyance path of a sheet-shaped medium, a second unit on the other side of the conveyance path and facing the first unit, a guide unit that is provided at the second unit and that contacts the medium between the first and second unit to move the second unit in a direction of separating from the conveyance path, an imaging unit provided at one of the first and second unit, a reference plate whose image can be captured by the imaging unit and that is provided at the other of the first and second unit, and a detecting unit for detecting the medium in the conveyance path, the detecting unit being provided in the conveyance path at an upstream position of a reading position where the imaging unit reads the medium.

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Номер записи: 37
27-03-2014 дата публикации

Device and method for conveying sheets and conveyor system

Номер: US20140084533A1
Автор: Robert Barrer
Принадлежит: MULTIGRAF AG

According to the invention, in the transport path between the input device and the output device, at least one intermediate buffer is arranged that serves as input device and as output device. The input device, the output device and the intermediate buffer are positioned adjacent to the conveyor belt and operated by the control device in such a way, that sheets forwarded from the input device or sheets stocked in the intermediate buffer are coupleable pneumatically to the lower side of the conveyor belt, and that sheets pneumatically attached to the lower side of the conveyor belt are selectively decoupleable at the intermediate buffer or at the output device.

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Номер записи: 38
03-04-2014 дата публикации

MULTI-FEED DETECTION APPARATUS, SHEET CONVEYANCE APPARATUS, AND SHEET PROCESSING APPARATUS

Номер: US20140091516A1
Автор: OKITSU Katsuhiko
Принадлежит: CANON DENSHI KABUSHIKI KAISHA

A multi-feed detection apparatus may include an ultrasonic transmission unit, arranged on one side of a conveyance path configured to convey a sheet-like member, for transmitting an ultrasonic wave toward the conveyance path, an ultrasonic reception unit, arranged on the other side of the conveyance path, for receiving the ultrasonic wave from the ultrasonic transmission unit, and a multi-feed determination unit for determining, based on the reception result of the ultrasonic wave received by the ultrasonic reception unit, whether multi-feed of sheet-like members has occurred. The ultrasonic transmission surface of the ultrasonic transmission unit is inclined with respect to the conveyance path, and the ultrasonic reception surface of the ultrasonic reception unit is arranged to be almost parallel to the conveyance path. 1. A multi-feed detection apparatus comprising:an ultrasonic transmission unit, arranged on one side of a conveyance path configured to convey a sheet-like member, for transmitting an ultrasonic wave toward the conveyance path;an ultrasonic reception unit, arranged on the other side of the conveyance path, for receiving the ultrasonic wave from said ultrasonic transmission unit; anda multi-feed determination unit for determining, based on a reception result of the ultrasonic wave received by said ultrasonic reception unit, whether multi-feed of sheet-like members has occurred,wherein an ultrasonic transmission surface of said ultrasonic transmission unit is inclined with respect to the conveyance path, and an ultrasonic reception surface of said ultrasonic reception unit is arranged to be substantially parallel to the conveyance path.2. The multi-feed detection apparatus according to claim 1 , wherein said ultrasonic transmission unit includes a plurality of ultrasonic transmission unit arranged for said one ultrasonic reception unit.3. The multi-feed detection apparatus according to claim 2 , wherein the ultrasonic transmission surface of said one ...

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Номер записи: 39
06-01-2022 дата публикации

SHEET FEED DEVICE

Номер: US20220002101A1
Автор: MORITA Yoshihisa
Принадлежит: RISO KAGAKU CORPORATION

A sheet feed device includes: a conveyor configured to convey a top sheet of sheets floated from a sheet stack; a blower configured to blow air in an obliquely upward direction from a position lower than the conveyor toward the sheet stack; and a direction converter configured to convert a direction of the air blown by the blower to a direction which is downward more than a direction of the air at a position where the air is blown from the blower and let the air flow in between the top sheet and a second sheet subsequent to the top sheet of the sheets floated from the sheet stack. 1. A sheet feed device comprising:a conveyor configured to convey a top sheet of sheets floated from a sheet stack;a blower configured to blow air in an obliquely upward direction from a position lower than the conveyor toward the sheet stack; anda direction converter configured to convert a direction of the air blown by the blower to a direction which is downward more than a direction of the air at a position where the air is blown from the blower and let the air flow in between the top sheet and a second sheet subsequent to the top sheet of the sheets floated from the sheet stack.2. The sheet feed device according to claim 1 , whereinthe conveyor comprises a conveyance belt configured to convey each sheet in a conveyance direction, andthe conveyance belt has a function as the direction converter.3. The sheet feed device according to claim 1 , wherein the blower comprises blow openings from which air is blown.4. The sheet feed device according to claim 2 , wherein the blower comprises blow openings from which air is blown.5. The sheet feed device according to claim 2 , whereinthe conveyance belt comprises a conveyance surface configured to suck and hold the top sheet, andthe direction converter comprises a downstream end portion of the conveyance surface in the conveyance direction.6. The sheet feed device according to claim 5 , further comprising:a sheet feed tray on which the sheet ...

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Номер записи: 40
01-01-2015 дата публикации

DUPLEX PRINTING METHOD FOR PRINTING APPARATUS

Номер: US20150001785A1
Автор: GOTODA Katsuhiko
Принадлежит:

A duplex printing method performed by a printing apparatus, the method comprising the steps of: feeding in a first sheet; transporting the first sheet along a sheet-circulating path; forming an image on a front side of the first sheet; feeding in a second sheet; detecting a sheet-feeding error; inhibiting an entry of the second sheet into the sheet-circulating path; forming an image on a back side of the first sheet; and ejecting the first sheet. 1. A duplex printing method performed by a printing apparatus , the method comprising the steps of:(a) feeding in a first sheet;(b) transporting the first sheet along a sheet-circulating path;(c) forming an image on a front side of the first sheet;(d) feeding in a second sheet;(e) detecting a sheet-feeding error;(f) inhibiting an entry of the second sheet into the sheet-circulating path;(g) forming an image on a back side of the first sheet; and(h) ejecting the first sheet.2. A duplex printing method of claim 1 , wherein the step of inhibiting the entry of the second sheet into the sheet-circulating path comprises:discontinuing rotation of an entrance roller pair when the second sheet reaches the entrance roller pair.3. The duplex printing method of claim 1 , wherein the step (h) is performed after the step (g).4. The duplex printing method of claim 3 , wherein the step (g) is performed after the step (f).5. The duplex printing method of claim 4 , wherein the step (f) is performed after the step (e).6. The duplex printing method of claim 1 , wherein the step (d) is performed after the step (c).7. The duplex printing method of claim 1 , wherein the step (f) is performed after the step (e).8. The duplex printing method of claim 1 , wherein the first sheet is transported twice along the sheet-circulating path.9. A duplex printing method performed by a printing apparatus claim 1 , the method comprising:(a) feeding in a first sheet;(b) transporting the first sheet along a sheet-circulating path;(c) forming an image on a front ...

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Номер записи: 41
07-01-2021 дата публикации

FABRIC SEPARATOR

Номер: US20210002093A1
Автор: Steward Dewayne
Принадлежит:

Some embodiments include a fabric separator comprising a body, a cylinder, a gas intake, a sensor, and a clamp. In some embodiments, the cylinder has an outer surface, is coupled with the body, and has a cylinder rotatable about an axis. The gas intake may flow gas in a rotational direction of the cylinder such that a low pressure zone is created on at least a portion of the outer surface of the cylinder. The sensor may be coupled with the body. The clamp may be in communication with the sensor and coupled with the body. The clamp having an engaged mode where the clamp is pressed against a portion of the cylinder and a disengaged where the clamp is not pressed against a portion of the cylinder, the clamp transitions from the engaged mode to the disengaged mode based on a signal from the sensor. 1. A fabric separator comprisinga body;a cylinder with an outer surface coupled with the body and having a cylinder rotatable about an axis;a gas intake that receives gas external from the body and flows the gas in the rotational direction of the cylinder such that a low pressure zone is created on at least a portion of the outer surface of the cylinder;a flagging sensor coupled with the body; anda clamp in communication with the flagging sensor and coupled with the body, the clamp having an engaged mode and a disengaged mode, in the engaged mode the clamp is pressed against a portion of the cylinder and in the disengaged mode the clamp is not pressed against a portion of the cylinder, the clamp transitions from the engaged mode to the disengaged mode based on a signal from the flagging sensor.2. The fabric separator according to claim 1 , wherein the low pressure zone is located between the cylinder and a fabric ply stack.3. The fabric separator according to claim 1 , wherein the body comprises a wall with a concave surface that follows the circumference of a portion of the cylinder.4. The fabric separator according to claim 1 , further comprising a robotic arm or linear ...

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Номер записи: 42
05-01-2017 дата публикации

SHEET SIZE SPECIFICATION SYSTEM, SHEET SIZE SPECIFICATION METHOD, COMPUTER-READABLE STORAGE MEDIUM STORING SHEET SIZE SPECIFICATION PROGRAM, AND IMAGE FORMING DEVICE

Номер: US20170001821A1
Автор: FUJII Satoshi, Mizuno Hiroshi, SATO Ryuji
Принадлежит:

A sheet size specification system for specifying size of a sheet on a sheet stacking tray of an image forming device, by using an image capture unit of a portable terminal. The system includes an analyzer and a size specifier. The analyzer analyzes image data captured by the image capture unit, the image data indicating the sheet stacking tray and the sheet thereon. The size specifier acquires, from the analyzed image data, first position data indicating positions of predefined feature points of the sheet stacking tray and second position data indicating positions of an outline of the sheet, and specifies size of the sheet on the sheet stacking tray based on the first position data and the second position data. 1. A sheet size specification system for specifying size of a sheet on a sheet stacking tray of an image forming device by using an image capture unit of a portable terminal , the system comprising:an analyzer that analyzes image data captured by the image capture unit, the image data indicating the sheet stacking tray and the sheet thereon; anda size specifier that acquires, from the analyzed image data, first position data indicating positions of predefined feature points of the sheet stacking tray and second position data indicating positions of an outline of the sheet, and specifies size of the sheet on the sheet stacking tray based on the first position data and the second position data.2. The sheet size specification system of claim 1 , whereinthe image forming device has a storage that stores, in association with the sheet stacking tray, sheet size data specified by the size specifier.3. The sheet size specification system of claim 1 , whereinthe analyzer and the size specifier are included in the portable terminal.4. The sheet size specification system of claim 1 , whereinthe analyzer and the size specifier are included in the image forming device, andthe portable terminal transmits image data of the sheet stacking tray to the image forming device and ...

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Номер записи: 43
02-01-2020 дата публикации

SHEET FEEDING DEVICE AND IMAGE FORMING SYSTEM INCORPORATING THE SHEET FEEDING DEVICE

Номер: US20200002114A1
Автор: MATSUDA Takahiro
Принадлежит:

A sheet feeding device includes a sheet loader, a sheet feeder, a misfeeding detector, a memory, and circuitry. The sheet loader is configured to load a sheet of a sheet bundle. The sheet feeder is configured to feed a sheet from the sheet bundle loaded on the sheet loader. The misfeeding detector is configured to detect a misfeeding of the sheet. The memory is configured to store sheet feed information on sheet feeding. The circuitry is configured to change a sheet feed setting based on the sheet feed information stored in the memory and perform a retry sheet feeding at a detection of the misfeeding by the misfeeding detector. 1. A sheet feeding device comprising:a sheet loader configured to load a sheet of a sheet bundle;a sheet feeder configured to feed a sheet from the sheet bundle loaded on the sheet loader;a misfeeding detector configured to detect a misfeeding of the sheet;a memory configured to store sheet feed information on sheet feeding; andcircuitry configured to change a sheet feed setting based on the sheet feed information stored in the memory and perform a retry sheet feeding at a detection of the misfeeding by the misfeeding detector.2. The sheet feeding device according to claim 1 ,wherein the sheet feed information stored in the memory includes misfeed information on the misfeeding and a successful sheet feed setting resulted in a successful retry sheet feeding, with the misfeed information being associated with the successful sheet feed setting, and change the sheet feed setting to the successful sheet feed setting stored in association with the misfeed information in the memory; and', 'perform the retry sheet feeding., 'wherein, in a case in which current sheet feed information resulted in the misfeeding prior to the retry sheet feeding matches the misfed information stored in the memory, the circuitry is configured to3. The sheet feeding device according to claim 1 , estimate a cause of the misfeeding based on the sheet feed information stored ...

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Номер записи: 44
02-01-2020 дата публикации

IMAGE FORMING APPARATUS THAT CONTROLS FEEDING OPERATION

Номер: US20200002115A1
Автор: Kanno Naoki
Принадлежит:

An image forming apparatus includes a detection unit to detect recording material fed from a stacking unit, a determination unit, a count unit, and a control unit. The determination unit determines that a feeding failure has occurred when the detection unit does not detect the recording material until elapse of a predetermined period. The count unit counts a number of times the feeding operation is performed for a single sheet of the recording material. When the counted number of feeding operation performance times by when the feeding failure has occurred is smaller than a threshold, the control unit restarts the feeding operation that has been stopped without waiting for a user's operation. When the counted number of feeding operation performance times by when the feeding failure has occurred is at least equal to the threshold, the control unit waits for the user's operation while the feeding operation is stopped. 1. An image forming apparatus comprising:a stacking unit configured to stack a recording material;a feeding unit configured to feed the recording material stacked on the stacking unit;a detection unit configured to detect the recording material fed by the feeding unit;a determination unit configured to determine that a feeding failure has occurred when the detection unit does not detect the recording material until a time when a predetermined period elapses since the feeding unit has started a feeding operation for the recording material;a count unit configured to count a number of times the feeding operation is performed for a single sheet of the recording material; anda control unit configured to control the feeding operation for the recording material and to stop the feeding operation when the determination unit determines that the feeding failure has occurred,wherein, in a case in which the number of times the feeding operation is performed that is counted by the count unit by a time when the feeding failure has occurred is smaller than a threshold, ...

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Номер записи: 45
02-01-2020 дата публикации

SHEET DISCHARGE APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20200002116A1
Автор: Mizuguchi Kohei
Принадлежит:

A sheet discharge apparatus includes a discharge and sheet support unit, a detection unit, a rotation member having a first abutting portion positioned above the sheet support unit, and a pressing member provided rotatably independent of the rotation member. The discharge unit nips and discharges a sheet in a sheet discharge direction. The sheet support unit supports the discharged sheet. The rotation member rotates when the first abutting portion is pressed by the sheet. The detection unit detects a position of the rotation member. A second abutting portion of the pressing member abuts against the sheet at a position downstream from a position at which the discharge unit nips the sheet and upstream from the first abutting portion in the sheet discharge direction. The pressing member presses the sheet discharged from the discharge unit downward using the second abutting portion, regardless of a position of the rotation member. 1. A sheet discharge apparatus comprising:a discharge unit configured to nip a sheet and discharge the sheet in a sheet discharge direction;a sheet support unit configured to support the sheet discharged from the discharge unit;a rotation member having a first abutting portion positioned above the sheet support unit, wherein the rotation member is configured to rotate when the first abutting portion is pressed by the sheet;a detection unit configured to detect a position of the rotation member; anda pressing member having a second abutting portion configured to abut against the sheet at a position downstream from a position at which the discharge unit nips the sheet and upstream from the first abutting portion in the sheet discharge direction,wherein the pressing member is provided rotatably independent of the rotation member and presses the sheet discharged from the discharge unit downward using the second abutting portion, regardless of a position of the rotation member.2. The sheet discharge apparatus according to claim 1 , further ...

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Номер записи: 46
03-01-2019 дата публикации

FEEDING APPARATUS AND METHOD FOR THE SAME

Номер: US20190002224A1
Автор: Hagiwara Hiroshi, Nagata Naohisa
Принадлежит:

A feeding apparatus includes a placement unit on which a recording material is to be placed, a feeding rotating member, a regulating plate, a detecting unit, and a control unit. The feeding rotating member feeds the recording material placed on the placement unit. The regulating plate regulates a position of an upstream end of the recording material placed on the placement unit in a direction of feeding by the feeding rotating member. The detecting unit detects a size of the recording material from a position of the regulating plate. The control unit changes duration of execution of a recording-material feeding operation performed by the feeding rotating member based on the size of the recording material detected by the detecting unit and a size of the recording material specified in advance by a user. 1. A feeding apparatus comprising:a placement unit on which a recording material is to be placed;a feeding rotating member configured to feed the recording material placed on the placement unit;a regulating plate configured to regulate a position of an upstream end of the recording material placed on the placement unit in a direction of feeding by the feeding rotating member;a detecting unit configured to detect a size of the recording material from a position of the regulating plate; anda control unit configured to change duration of execution of a recording-material feeding operation performed by the feeding rotating member based on the size of the recording material detected by the detecting unit and a size of the recording material specified in advance by a user.2. The feeding apparatus according to claim 1 ,wherein the regulating plate is movable to a plurality of positions, andwherein the detecting unit detects a size range of the recording material that can be placed on the placement unit without the recording material being positioned over the regulating plate according to each of the positions of the regulating plate.3. The feeding apparatus according to ...

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Номер записи: 47
03-01-2019 дата публикации

IMAGE READING APPARATUS

Номер: US20190002225A1
Автор: KADOTA Shuichi
Принадлежит:

An image reading apparatus includes a feed roller configured to feed paper toward a reading section, and a medium detection section provided along a transport path between the feed roller and the reading section and configured to include a transmitting portion configured to output an output value equivalent to a magnitude of an ultrasonic wave, and determines whether the transport of the paper is to be continued or to be brought to a halt on the basis of a lower limit value and an upper limit value for the output value, which are set in accordance with the kind of the paper. Further, in a case where the output value satisfies a first condition, a transport of the medium is continued, and in a case where the output value satisfies a condition different from the first condition, the transport of the medium is brought to a halt. 1. An image reading apparatus comprising:a reading section configured to read a medium being transported;feeding means configured to feed the medium toward the reading section; anda medium detection section provided along a medium transport path between the feeding means and the reading section and configured to include a transmitting portion configured to emit an ultrasonic wave and a receiving portion configured to receive the ultrasonic wave emitted from the transmitting portion, and output an output value equivalent to a magnitude of the received ultrasonic wave,wherein, in a case where the output value of the receiving portion satisfies a first condition, a transport of the medium is continued,wherein, in a case where the output value of the receiving portion satisfies either a second condition different from the first condition or a third condition different from the second condition, the transport of the medium is brought to a halt,wherein a lower limit value and an upper limit value are set in accordance with a kind of the medium,wherein the first condition is satisfied in a case where the output value falls within a reference range ...

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Номер записи: 48
13-01-2022 дата публикации

SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS

Номер: US20220009734A1
Автор: Numata Yoshiya
Принадлежит:

A sheet feeding device includes a sheet accommodating portion for accommodating a sheet, a feeding roller for feeding the sheet by rotation thereof in a state in which the feeding roller contacts an uppermost sheet accommodated in the sheet accommodating portion, a detecting portion for detecting a surface property of the sheet accommodated in the sheet accommodating portion, a changing means for changing contact pressure of the feeding roller to the uppermost sheet, and a controller for controlling the changing means so as to change the contact pressure on the basis of a result of the surface property of the sheet detected by the detecting portion. 1. A sheet feeding device comprising:a sheet accommodating portion configured to accommodate a sheet;a feeding roller configured to feed the sheet by rotation thereof in a state in which said feeding roller contacts an uppermost sheet accommodated in said sheet accommodating portion;detecting means configured to detect a surface property of the sheet accommodated in said sheet accommodating portion;changing means configured to change contact pressure of said feeding roller to the uppermost sheet; anda controller configured to control said changing means so as to change the contact pressure on the basis of a result of the surface property of the sheet detected by said detecting means.2. A sheet feeding device according to claim 1 , wherein the sheet has surface roughness including first roughness and second roughness larger than the first roughness claim 1 , andwherein after said changing means changes the contact pressure, the contact pressure of said feeding roller when the surface roughness is the second roughness is contact pressure larger than the contact pressure of said feeding roller when the surface roughness is the first roughness.3. A sheet feeding device according to claim 1 , further comprising urging means configured to urge said feeding roller toward the uppermost sheet accommodated in said sheet ...

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Номер записи: 49
20-01-2022 дата публикации

SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20220017319A1
Автор: Machii Emi, Obata Seiji, Sekimizu Koichi, SUZUKI Takafumi
Принадлежит:

A sheet conveyance apparatus includes a conveyance unit configured to convey a sheet, a guide member disposed to define a conveyance path, a light-emitting element, a light-receiving element configured to output a detection signal that changes in accordance with an amount of received light, a first light-passing portion disposed to define an optical path from the light-emitting element to the conveyance path, and a second light-passing portion disposed to define an optical path from the conveyance path to the light-receiving element. The light-receiving element is configured such that the detection signal changes in accordance with whether or not a sheet is present in the conveyance path. Reflectance of each of the first light-passing portion and the second light-passing portion to the light emitted from the light-emitting element is higher than reflectance of the guide member to the light emitted from the light-emitting element. 1. A sheet conveyance apparatus comprising:a conveyance unit configured to convey a sheet;a guide member disposed to define a conveyance path through which a sheet is conveyed;a light-emitting element configured to emit light;a light-receiving element configured to output a detection signal that changes in accordance with an amount of received light;a first light-passing portion disposed to define an optical path from the light-emitting element to the conveyance path; anda second light-passing portion disposed to define an optical path from the conveyance path to the light-receiving element,wherein the light-receiving element is configured such that the detection signal changes in accordance with whether or not a sheet is present in the conveyance path, andwherein reflectance of each of the first light-passing portion and the second light-passing portion to the light emitted from the light-emitting element is higher than reflectance of the guide member to the light emitted from the light-emitting element.2. The sheet conveyance apparatus ...

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Номер записи: 50
08-01-2015 дата публикации

SHEET FEEDING DEVICE, AND IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THIS

Номер: US20150008638A1
Автор: YAMAMOTO Kiyonori
Принадлежит: KYOCERA Document Solutions Inc.

In a sheet feeding device, a feeding roller is driven and rotated to feed a sheet in a conveying direction of a sheet conveying path and a drive transmission mechanism transmits rotation drive force generated in a driving portion to the feeding roller. In this mechanism, a drive input gear having an inner space is arranged on a rotation axis supporting the feeding roller rotatably so as to rotate by the rotation drive force. A drive transmission gear arranged between the feeding roller and drive input gear on the rotation axis rotates and becomes slide-movable along the rotation axis between a first position transmitting the rotation drive force to the feeding roller and a second position cutting off the transmission of the rotation drive force to the feeding roller by the rotation drive force from the drive input gear to transmit the rotation drive force to the feeding roller. 1. A sheet feeding device , comprising:a tray portion on which a sheet is placed;a sheet conveying path extending from the tray portion to convey the sheet in a predetermined conveying direction;a feeding roller driving and rotating to feed the sheet in the conveying direction;a driving portion generating rotation drive force used for driving and rotating the feeding roller; anda drive transmission mechanism transmitting the rotation drive force to the feeding roller,wherein the drive transmission mechanism includes:a rotation axis supporting the feeding roller rotatably;a drive input gear formed in a cylinder like shape having an inner space and arranged on the rotation axis so as to rotate around the rotation axis by input of the rotation drive force of the driving portion; anda drive transmission gear arranged between the feeding roller and drive input gear on the rotation axis so as to rotate around the rotation axis and to become capable of slide-moving in an axial direction of the rotation axis between a first position where the rotation drive force is transmitted to the feeding roller ...

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Номер записи: 51
08-01-2015 дата публикации

SHEET THICKNESS DETECTOR, SHEET CONVEYOR INCORPORATING SAME, AND IMAGE FORMING APPARATUS INCORPORATING SAME

Номер: US20150008640A1
Автор: Kambayashi Mamoru
Принадлежит: RICOH COMPANY, LTD.

A sheet thickness detector incorporated in a sheet conveyor and/or an image forming apparatus includes multiple first rollers aligned in a direction perpendicular to a sheet conveying direction, multiple second rollers facing the respective first rollers, a first roller shaft supporting two first rollers, at least one second roller shaft supporting rollers other than the two first rollers, at least one third roller shaft to support at least three second rollers, a first roller shaft holder supporting the first roller shaft to move from the at least one third roller shaft in a contact/separation direction, a biasing member biasing the first roller shaft toward at least one third roller shaft, and a displacement amount detector detecting an amount of displacement of the first roller shaft. A thickness of a sheet between the first and second rollers is detected based on a detection result by the displacement amount detector. 1. A sheet thickness detector comprising:multiple first rollers aligned in a direction perpendicular to a sheet conveying direction;multiple second rollers disposed facing the respective multiple first rollers;a first roller shaft to support two first rollers of the multiple first rollers;at least one second roller shaft to support rollers other than the two first rollers of the multiple first rollers;at least one third roller shaft to support at least three second rollers of the multiple second rollers;a first roller shaft holder to support the first roller shaft to move from the at least one third roller shaft in a contact/separation direction;a biasing member to bias the first roller shaft toward the at least one third roller shaft in the contact/separation direction; anda displacement amount detector to detect an amount of displacement of the first roller shaft in the contact/separation direction,wherein a thickness of a sheet held between the multiple first rollers and the multiple second rollers is detected based on a detection result ...

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Номер записи: 52
12-01-2017 дата публикации

TRANSPORT DEVICE AND IMAGE FORMING APPARATUS

Номер: US20170008715A1
Автор: CHIBA Takahito, MORINO Takanori, MORIYA Hideki, SUNOHARA Tsuyoshi, YAMAGUCHI Hidehiko
Принадлежит: FUJI XEROX CO., LTD.

Provided is a transport device including a first transport section that is driven at a first transport speed and transports a recording medium interposed therein, a second transport section that is driven at a speed different from the first transport speed, is located at a downstream of the first transport section in a transport direction, and transports the recording medium interposed therein, a detection section that detects variations in a driving load of the second transport section before and after the recording medium is discharged from the first transport section, and a derivation section that derives a thickness of the recording medium based on the variations. 1. A transport device comprising:a first transport section that is driven at a first transport speed and transports a recording medium interposed therein;a second transport section that is driven at a speed different from the first transport speed, is located at a downstream of the first transport section in a transport direction, and transports the recording medium interposed therein;a detection section that detects variations in a driving load of the second transport section before and after the recording medium is discharged from the first transport section; anda derivation section that derives a thickness of the recording medium based on the variations.2. The transport device according to claim 1 ,wherein the detection section acquires a timing at which the recording medium is discharged from the first transport section based on a timing at which the recording medium passes through a detection position on a transport path, a length of the recording medium in the transport direction, and a transport speed of the recording medium, and detects the variations before and after the acquired timing.3. The transport device according to claim 1 ,wherein the detection section specifies a timing at which the driving load of the second transport section exceeds a threshold value after being set to be in a ...

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Номер записи: 53
12-01-2017 дата публикации

Device and method for feeding papers

Номер: US20170008716A1
Автор: Dahlqvist Patrik
Принадлежит:

A method for feeding sheets of paper comprises the following steps: providing a stack of papers on a storage surface of a paper feeding device, providing a flow of air for separating an uppermost sheet of paper from the rest of the stack of papers; determining the vertical position of the uppermost sheet of paper; adjusting the flow of air in dependence on the determined vertical position of the uppermost sheet of paper; and repeating the steps of determining the vertical position of the uppermost sheet of paper and adjusting the flow of air in dependence on the determined vertical position of the uppermost sheet of paper. During continuous operation, the flow of air is controlled in cycles with one part of the cycle, preferably the first part of the cycle, with a higher flow of air, and one part of the cycle, preferably the second part of the cycle, with a lower flow of air. By imparting the uppermost sheet of paper a pulsating movement up and down, the problems associated with electrostatic charging are mitigated. 2. The method according to claim 1 , wherein the first and second parts of the cycle are of equal length.3. The method according to claim 2 , wherein the higher flow of air (P) is essentially two times the lower flow of air (P).4. The method according to claim 2 , wherein the vertical position of the uppermost sheet of paper is determined after each cycle with a higher flow of air (P) and if the determined vertical position (X) of the uppermost sheet of paper deviates from a desired position (X) claim 2 , for the next cycle the higher flow of air (P) will be adjusted upward if the determined vertical position (X) was lower than the desired position (X) claim 2 ,and downward if the determined vertical position (X) was higher than the desired position (X).5. The method according to claim 4 , wherein claim 4 , for the next cycle claim 4 , the higher flow of air (P) will be adjusted upward or downward if the determined vertical position (X) of the uppermost ...

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Номер записи: 54
14-01-2021 дата публикации

SHEET FEEDING DEVICE, IMAGE READING APPARATUS INCLUDING THE SHEET FEEDING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20210009372A1
Автор: Suga Takayuki
Принадлежит:

A sheet feeding device includes a stacking portion, a feeding portion, a contact and separation mechanism, a separation conveying portion, a detecting portion, a size acquiring portion, and a controller. In a first mode, in a case that the detecting portion detects passing of a trailing end of the current sheet after the separating operation, the controller causes the contact and separation mechanism to start a contact operation in which the feeding portion is contacted to a sheet stacked on the stacking portion in order to feed a subsequent sheet. In a second mode, before the detecting portion detects passing of a trailing end of the current sheet after the separating operation, the controller causes the contact and separation mechanism to start, on the basis of a distance in which the current sheet is fed by the separation conveying portion, the contact operation to feed the subsequent sheet. 1. A sheet feeding device comprising:a stacking portion configured to stack a sheet;a feeding portion configured to feed the sheet stacked on said stacking portion in a feeding direction in contact with an upper surface of the sheet;a contact and separation mechanism configured to move said feeding portion toward and away from the sheet stacked on said stacking portion;a separation conveying portion configured to convey the sheet fed by said feeding portion while separating the sheet one by one in a separating portion positioned downstream of said feeding portion with respect to the feeding direction;a detecting portion configured to detect the sheet on a side downstream of said separating portion with respect to the feeding direction;a size acquiring portion configured to acquire information on a size of the sheet stacked on said stacking portion; anda controller configured to execute a separating operation in which after said controller causes said feeding portion to start feeding of a current sheet in a state in which said feeding portion contacts the current sheet stacked ...

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Номер записи: 55
09-01-2020 дата публикации

ANTI-ROTATION DEVICE AND METHOD OF USE

Номер: US20200010294A1
Автор: Badri Reza, Brown John W., Hillerich Thomas A., Houston Edward F., Mayhall Riley H., Roman Juan A., Shiu Leung M., Timm Jacob L.
Принадлежит:

A device for reducing rotation of an article during singulation of a stack of articles is disclosed. The device may include a torsion element, a rotatable member configured to rotate about an elongated axis of the torsion element between a first position and a second position, and a revolving member coupled to the rotatable member. An outer surface of the revolving member contacts a drive belt in the first position and an article in the second position. The torsion element exerts torque on the rotatable member when it moves from the first position towards the second position. The torque causes the outer surface of the revolving member to apply a frictional force to the article, thereby minimizing rotation of the article. Systems and methods of singulating articles are also disclosed. 1. A device for handling an item comprising:a moveable lever arm comprising a biasing element and a rotatable member rotatable around a first axis; anda wheel attached to the rotatable member, wherein the wheel is configured to revolve around a second axis parallel to the first axis, and to contact a first surface of an item being moved by a lateral acceleration force applied by a drive belt in proximity to the movable lever arm, the item having first and second surfaces which are located adjacent and substantially parallel to each other and to the first and second axes;wherein, as the item is moved by the drive belt, the first surface of the item contacts the drive belt, and the second surface of the item contacts an outer surface of the wheel; andwherein the rotatable member is configured to apply a counter-force to the second surface of the item via the wheel, so as to prevent displacement of the second surface with respect to the first surface.2. The device of claim 1 , wherein the biasing element resists movement of the rotatable member.3. The device of claim 2 , wherein the biasing element is a spring.4. The device of claim 1 , wherein the rotatable member comprises a torsion bar. ...

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Номер записи: 56
15-01-2015 дата публикации

AUTO DOCUMENT FEEDER, SCANNER INCLUDING THE SAME, AND METHOD OF CONTROLLING AUTO DOCUMENT FEEDING

Номер: US20150014914A1
Автор: SUNG Byung-jun
Принадлежит: Samsung Electronics Co., Ltd

Provided are an auto document feeder (ADF), a scanner including the ADF, and a method of controlling auto document feeding. The ADF includes: a feed unit picking up a sheet of paper and carrying the sheet of paper to a scan unit; a feed control unit controlling the feed unit; and a retry control unit. If a sheet of paper is not normally picked up by the feed unit, the retry control unit decreases a speed of a motor driving the feed unit or increases a current supplied to the motor for picking up the sheet of paper. Therefore, although sheets of paper are not normally fed when a user intends to use various kinds of sheets of paper with the ADF, the retry control unit may stabilize feeding of the feeding of the sheets of paper. Thus, efficient, convenient, and high-quality paper feeding may be possible. 1. An ADF (auto document feeder) comprising:a feeder configured to pick up a sheet of paper and carry the sheet of paper to a scanner;a feed controller configured to control the feeder; anda retry controller, wherein if the sheet of paper is not normally picked up by the feeder, the retry controller decreases a speed of a motor driving the feeder or increases a current supplied to the motor for picking up the sheet of paper.2. The ADF of claim 1 , wherein the retry controller comprises:a motor current controller configured to vary the current supplied to the motor driving the feeder, wherein if the sheet of paper is not normally picked up by the feeder, the motor current controller increases the current supplied to the motor;a motor speed controller configured to maintain or vary the speed of the motor, wherein if the sheet of paper is not normally picked up by the feeder, the motor speed controller decreases the speed of the motor; anda paper distance controller, wherein a paper distance is defined as a distance between a first sensor indicating whether the sheet of paper is normally picked up and a second sensor indicating a start of image scanning, and wherein if ...

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Номер записи: 57
15-01-2015 дата публикации

MEDIA-TRACKING SYSTEM USING THERMALLY-FORMED HOLES

Номер: US20150014918A1
Автор: Kauffman Robert Edward, Piatt Michael Joseph, Wolf James Douglas
Принадлежит:

A system is described for tracking a position of a receiver medium as it travels along a media path. A heat source provides heat to the receiver medium in a localized area sufficient to form a hole through the receiver medium thereby forming a reference mark. A light source illuminates a first side of the receiver medium, and a sensor located on a second side of the receiver medium senses light transmitted through the receiver medium thereby providing a sensed light level signal. The sensed light level signal is analyzed to determine a position of the receiver medium by detecting light transmitted through the hole through the receiver medium associated with the reference mark. 1. A system for tracking a position of a receiver medium as it travels along a media path , comprising:a heat source located at a first position along the media path adapted to provide heat to the receiver medium in a localized area, the provided heat being sufficient to form a hole through the receiver medium thereby forming a reference mark;a light source that illuminates a first side of the receiver medium when it has traveled to a second position along the media path;a sensor located on a second side of the receiver medium opposite to the first side, the sensor being adapted to sense light from the light source transmitted through the receiver medium thereby providing a sensed light level signal; anda data processor adapted to analyze the sensed light level signal to determine a position of the receiver medium as the receiver medium passes through the second position along the media path by detecting light transmitted through the hole through the receiver medium associated with the reference mark.2. The system of wherein the heat source provides heat to the receiver medium by bringing a resistive heater into contact with a surface of the receiver medium.3. The system of wherein the media path includes a roller around which the receiver medium is wrapped or over which the receiver medium ...

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Номер записи: 58
03-02-2022 дата публикации

IMAGE READING DEVICE, MULTI-FEED DETECTING METHOD, AND MULTI-FEED DETECTING PROGRAM

Номер: US20220033209A1
Автор: FUKUMITSU Yasunori
Принадлежит:

An image reading device includes: a transport unit configured to transport a medium; an emission unit configured to emit an ultrasonic wave in accordance with a driving voltage and a reception unit configured to receive the ultrasonic wave, the emission unit and the reception unit being disposed so that a transport path for the medium transported by the transport unit is interposed therebetween; a reading unit configured to read the medium; and a control unit configured to detect presence or absence of multi-feed of the medium on the basis of a signal received by the reception unit. The image reading device is configured to switch a posture into any of a first posture or a second posture. The first posture is a posture in which the transport path is sloped relative to a mounting surface. The second posture is a posture in which an angle of the transport path relative to the mounting surface is smaller than that in the first posture. The control unit sets a first driving voltage as the driving voltage when the posture is the first posture, and sets a second driving voltage lower than the first driving voltage as the driving voltage when the posture is the second posture. 1. An image reading device comprising:a transport unit configured to transport a medium;an emission unit configured to emit an ultrasonic wave in accordance with a driving voltage and a reception unit configured to receive the ultrasonic wave, the emission unit and the reception unit being disposed so that a transport path for the medium transported by the transport unit is interposed therebetween;a reading unit configured to read the medium transported by the transport unit; anda control unit configured to detect presence or absence of multi-feed of the medium on a basis of a signal received by the reception unit, whereinthe image reading device is configured to switch a posture into any of a first posture or a second posture, the first posture being a posture in which the transport path is sloped ...

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Номер записи: 59
03-02-2022 дата публикации

MEDIUM TRANSPORT DEVICE, CONTROL METHOD, AND CONTROL PROGRAM

Номер: US20220033210A1
Автор: Sakai Masaaki
Принадлежит:

Provided are an image processing apparatus, a control method, and a control program to accurately determine whether or not a deflection of a fed medium has occurred, and to suitably control a feeding of the medium. A medium conveying apparatus includes a feed module to feed a medium, a motion detection module to detect a first change amount in a feeding direction of the medium placed on a medium tray and a second change amount in a direction perpendicular to a placing surface of the medium tray during feeding of the medium, a determination module to determine that a deflection of the medium has occurred when the first change amount is less than a first threshold value and the second change amount is equal to or more than a second threshold value, and a control module to stop feeding the medium according to the determination result. 1. A medium conveying apparatus , comprising:a medium tray;a feed roller to feed a medium placed on the medium tray;a processor to detect a first change amount in a feeding direction of the medium placed on the medium tray and a second change amount in a direction perpendicular to a placing surface of the medium tray during feeding of the medium,determine that a deflection of the medium has occurred when the first change amount is less than a first threshold value and the second change amount is equal to or more than a second threshold value, andstop feeding the medium according to the determination result.2. The medium conveying apparatus according to claim 1 , whereinthe processor further detects a third change amount of the medium placed on the medium tray in a direction parallel to the placing surface of the medium tray and perpendicular to the feeding direction, and whereinthe processor further determines that the deflection of the medium has occurred when the third change amount is equal to or more than the third threshold value.3. The medium conveying apparatus according to claim 1 ,further comprising an imaging sensor, whereinthe ...

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Номер записи: 60
18-01-2018 дата публикации

Conveyance detection apparatus, conveying apparatus, and recording apparatus

Номер: US20180015744A1
Автор: Kenichi Matsumoto, Masashi Ishimaru, Yoshihiro Hattori, Yoshihisa Negishi
Принадлежит: Canon Components Inc

Provided is a control unit of a conveying apparatus, the conveying apparatus including: a conveying unit that conveys recording paper along a conveyance path; and an imaging unit that images the recording paper, wherein the control unit detects conveyance information of the recording paper based on image information of a plurality of different regions in image information of the recording paper P imaged by the imaging unit.

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Номер записи: 61
17-01-2019 дата публикации

SHEET CONVEYING APPARATUS

Номер: US20190016548A1
Автор: OKUMURA Masayuki
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A sheet conveying apparatus, including: a sheet storage portion; a roller to convey sheets by rotating about a rotation axis; an arm rotatably supporting the roller and pivotable about an arm pivot axis; a presser plate pivotable about a presser-plate pivot axis; and a pivot mechanism to pivot the presser plate such that a contact angle, which is an angle defined upstream in a sheet conveyance direction by the arm and an uppermost one of the sheets contacting the roller, is less than a maximum angle in a time period from a sheet maximally loaded state to a sheet minimally loaded state, the maximum angle being an angle defined upstream in the conveyance direction by: only one sheet assumed to be placed on the presser plate which is the presser plate in the maximally loaded state; and the arm the roller of which contacts the one sheet. 1. A sheet conveying apparatus , comprising:a storage portion for storing a stack of a plurality of sheets;a roller rotatable about a rotation axis parallel to the plurality of sheets stored in the storage portion and configured to convey the plurality of sheets in a conveyance direction by rotating about the rotation axis while being held in contact with a surface of an uppermost one of the plurality of sheets stored in the storage portion;an arm rotatably supporting the roller, the arm being pivotable about an arm pivot axis parallel to the rotation axis with the roller located downstream of the arm pivot axis in the conveyance direction;a presser plate pivotable about a presser-plate pivot axis parallel to the rotation axis and configured to press the plurality of sheets stored in the storage portion toward the roller, the presser-plate pivot axis being located downstream, in the conveyance direction, of the rotation axis of the roller in a maximally loaded state in which a maximal amount of the plurality of sheets are loaded on the storage portion; anda pivot mechanism configured to pivot the presser plate about the presser-plate ...

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Номер записи: 62
19-01-2017 дата публикации

SHEET TRANSPORT DEVICE AND IMAGE FORMING APPARATUS

Номер: US20170017187A1
Автор: Yamabe Daisuke
Принадлежит:

A sheet transport device includes a transport unit that transports a sheet, an endless belt that transmits a driving force from a motor to the transport unit, a rotary member that rotates by being pressed by the sheet transported by the transport unit, and a sensor that generates a signal in accordance with rotation of the rotary member. The rotary member is arranged in such a manner that a portion of the rotary member faces an inner peripheral portion of the endless belt. 1. A sheet transport device comprising:a transport unit that transports a sheet;an endless belt that transmits a driving force from a motor to the transport unit;a rotary member that rotates by being pressed by the sheet transported by the transport unit; anda sensor that generates a signal in accordance with rotation of the rotary member,wherein the rotary member is arranged in such a manner that a portion of the rotary member faces an inner peripheral portion of the endless belt.2. The sheet transport device according to claim 1 ,wherein the rotary member includes a shaft extending in an axial direction of the rotary member, andwherein the rotary member is arranged in such a manner that a portion of the shaft faces the inner peripheral portion of the endless belt.3. The sheet transport device according to claim 2 ,wherein the sensor is a photo-interrupter, a contact portion that projects from the shaft in a radial direction and that is brought into contact with the sheet, which is transported, and', 'a light-blocking portion that blocks an optical path of the photo-interrupter, and, 'wherein the rotary member includes'}wherein the contact portion and the light-blocking portion are arranged in such a manner that the endless belt is interposed between the contact portion and the light-blocking portion in the axial direction of the rotary member.4. The sheet transport device according to claim 1 ,wherein the sensor and the motor are arranged in such a manner as to oppose a transport region in which ...

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Номер записи: 63
16-01-2020 дата публикации

PAPER FEEDING PARAMETER MANAGEMENT SYSTEM

Номер: US20200017326A1
Автор: Nishikawa Eiji, Yokoya Takahiro
Принадлежит: KONICA MINOLTA, INC.

A paper feeding parameter management system may include air paper feeding devices and a management device. Each of the air paper feeding devices may be provided with an air paper feeder which may feed paper by blowing air and by absorption to paper and which may be provided with a paper feeding parameter capable of being switched. Each of the air paper feeding devices may be provided with a paper type information obtaining unit and a hardware processor. The paper type information obtaining unit may obtain paper type information of paper to be fed. The hardware processor (i) may adjust the paper feeding parameter of the air paper feeder and (ii) may transmit the paper type information, device configuration information regarding a device configuration of the air paper feeding device, and the adjusted paper feeding parameter to the management device. 1. A paper feeding parameter management system , comprising:air paper feeding devices each of which is provided with an air paper feeder which feeds paper by blowing air and by absorption to paper and which is provided with a paper feeding parameter capable of being switched; anda management device connected to the air paper feeding devices via a communication network, a paper type information obtaining unit which obtains paper type information of paper to be fed; and', 'a first hardware processor which (i) adjusts the paper feeding parameter of the air paper feeder and (ii) transmits the paper type information obtained by the paper type information obtaining unit, device configuration information regarding a device configuration of the air paper feeding device, and the adjusted paper feeding parameter to the management device,, 'wherein each of the air paper feeding devices is provided with the paper type information obtained by the paper type information obtaining unit of a first air paper feeding device to be processed among the air paper feeding devices; and', 'the device configuration information of the first air ...

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Номер записи: 64
21-01-2021 дата публикации

CONTROL APPARATUS AND FEEDING APPARATUS

Номер: US20210016988A1
Автор: Ohkochi Tadahira, TOKUTAKE Akane, Yamaguchi Taichi
Принадлежит: Duplo Seiko Corporation

The control apparatus includes an acquisition unit, an air volume setting unit, and an air blow control unit. The air volume setting unit sets a volume of air to be blown toward the plurality of sheets from a separation blower based on the information on the processing job acquired by the acquisition unit or by manipulation of a user. When the air volume is changed from a first air volume to a second air volume different from the first air volume by the user, the air volume setting unit maintains the air volume as the second air volume, irrespective of the information on the processing job acquired by the acquisition unit, until the air volume is changed from the second air volume to an air volume different from the second air volume by the user. 1. A control apparatus of a feeding apparatus that includesa feeding table on which a plurality of sheets are placeable,a separation blower that is disposed downstream of the feeding table in a conveying path extending from the feeding table toward a conveying direction intersecting with a placement direction of the plurality of sheets, the separation blower blowing air from the conveying direction toward the plurality of sheets to separate an uppermost sheet, which is disposed farthest from the feeding table in the placement direction of the plurality of sheets, among the plurality of sheets placed on the feeding table .in the placement direction, anda sucking conveyer that is disposed with a gap formed in the placement direction with respect to the uppermost sheet in a state of not being separated by the separation blower, the sucking conveyer conveying the uppermost sheet separated by the separation blower along the conveying path while sucking the uppermost sheet,the control apparatus comprising:an acquisition unit that acquires information on a processing job of the plurality of sheets;an air volume setting unit that sets a volume of air to be blown toward the plurality of sheets from the separation blower based on the ...

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Номер записи: 65
17-04-2014 дата публикации

Sheet Conveyer and Image Reading Apparatus

Номер: US20140103601A1
Автор: NAKAYAMA Daisuke
Принадлежит:

A sheet conveyer, including a first roller to rotate to convey a sheet in a conveying direction; a separator arranged to be opposed to the first roller and configured to nip the sheet and to separate the sheet from other sheets; a multiple sheet sensor arranged in a downstream position with respect to the first roller and configured to sense presence of multiple sheets, the multiple sheet sensor including an emitter and a receiver; and a second roller arranged in a downstream position with respect to the multiple sheet sensor and configured to convey the separated sheet, is provided. A component being at least one of the emitter and the receiver is arranged in an outer side position with respect to the separator, and at least a part of the component is arranged in an inner side position with respect to the second roller. 1. A sheet conveyer , comprising:a first roller;a separator arranged to be opposed to the first roller;a second roller arranged in a downstream position in a first direction with respect to the first roller; anda multiple sheet sensor arranged in a downstream position in the first direction with respect to the first roller and in an upstream position in the first direction with respect to the second roller, the multiple sheet sensor including a receiver and a paired emitter paired with the receiver, one of the receiver and the paired emitter being arranged at least partially in an outer side position with respect to the separator along a second direction, the one of the receiver and the paired emitter being arranged at least partially in an inner side position with respect to the second roller along the second direction, and the other one of the receiver and the paired emitter being arranged at least partially in an outer side position with respect to the separator along the second direction, wherein the second direction is orthogonal to the first direction.2. The sheet conveyer according to claim 1 , further comprising:an upper guide; anda lower ...

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Номер записи: 66
28-01-2016 дата публикации

Recording sheet transport device and image reading device

Номер: US20160023857A1
Автор: Ryusuke NAKATA
Принадлежит: Fuji Xerox Co Ltd

A recording sheet transport device having a transport path having a curvature includes a multifeed detector and an orientation stabilizing device. The multifeed detector detects a multifeed state in which two or more recording sheets are superposed on one another while the two or more recording sheets are being transported. The orientation stabilizing device stabilizes an orientation of parts of the two or more recording sheets, at which the multifeed state is detected by the multifeed detector, relative to the multifeed detector.

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Номер записи: 67
24-01-2019 дата публикации

FEEDING APPARATUS

Номер: US20190023513A1
Автор: HIRANO YUYA
Принадлежит:

A feeding apparatus includes a rotary member unit having a feeding rotary member to feed a recording material and a separating rotary member which forms a nip portion with the feeding rotary member, an output unit, and a control unit. Where a single recording material is fed to the nip portion, the separating rotary member is rotated in a predetermined direction by the single recording material and, where recording materials are overlapped with one another and fed to the nip portion, the separating rotary member rotation is stopped or rotated in a direction opposite to the predetermined direction to separate the overlapped recording materials. The output unit outputs a state signal in accordance with a separating rotary member rotation state. The control unit obtains a rotation speed of the separating rotary member from the state signal output and determines that the rotary member unit is replaced with a new product. 1. A feeding apparatus comprising:a rotary member unit including a feeding rotary member configured to feed a recording material and a separating rotary member which forms a nip portion with the feeding rotary member, wherein, in a case where a single recording material is fed to the nip portion, the separating rotary member is configured to he rotated in a predetermined direction by the single recording material and, in a case where a plurality of recording materials are overlapped with one another and fed to the nip portion, the rotation of separating rotary member is configured to be stopped or rotated in a direction opposite to the predetermined direction to separate the overlapped plurality of recording materials from one another at the nip portion;an output unit configured to output a state signal in accordance with a rotation state of the separating rotary member; anda control unit configured to obtain a rotation speed of the separating rotary member from the state signal output from the output unit and, based on the obtained rotation speed of ...

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Номер записи: 68
23-01-2020 дата публикации

IMAGE FORMING APPARATUS

Номер: US20200024093A1
Автор: Deno Kohei
Принадлежит:

An image forming apparatus includes a controller to move a sheet, in an image formation process on a first surface, to a standard position in a width direction and move the sheet, in an image formation process on a second surface, in the width direction based on a detected position in a case where a difference between the standard position and a first position in the width direction is equal to or smaller than a predetermined value. The controller moves the sheet, in the image formation process on the first surface, by the predetermined value in the width direction and moves the sheet, in the image formation process on the second surface, in the width direction based on detected positions in a case where the difference between the standard position and the first position in the width direction is larger than the predetermined value. 117.-. (canceled)18. An image forming apparatus comprising:an image forming portion configured to form an image on a sheet at an image forming position;a moving portion provided upstream of the image forming position in a conveyance direction in which the sheet is conveyed and configured to move the sheet toward a standard position in a width direction perpendicular to the conveyance direction;a re-conveyance portion configured to invert the sheet having the image formed on a first surface of the sheet by the image forming portion such that the first surface and a second surface of the sheet change places and configured to convey the sheet to the image forming position again;a detector configured to detect a first position and a second position, the first position being a position of an edge portion, in the width direction, of the sheet at a position upstream of the image forming position in the conveyance direction in a case where the image is to be formed on the first surface, the second position being a position of an edge portion, in the width direction, of the sheet at a position upstream of the image forming position in the ...

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Номер записи: 69
28-01-2021 дата публикации

PAPER FEED MECHANISM AND IMAGE FORMING APPARATUS

Номер: US20210024309A1
Автор: WEI Cunlu, Zhou Peng
Принадлежит: Konica Minolta Technology Development (WUXI) Co., Ltd.

A paper feed mechanism includes: a paper storage to store sheets of paper; an air blowing unit disposed on each of both sides of the paper storage in a second direction orthogonal to a first direction corresponding to a paper conveyance direction, in which the air blowing unit blows air to a side end of each of the sheets of paper in the paper storage to float one or some of the sheets of paper in the paper storage; and a paper conveyance unit disposed above the paper storage, in which the paper conveyance unit holds, by suction, an uppermost sheet of paper among the floated sheets of paper, and conveys the uppermost sheet of paper. An air blowing position of the air blowing unit is changeable in the first direction according to information about the sheets of paper. 1. A paper feed mechanism comprising:a paper storage to store sheets of paper;an air blowing unit disposed on each of both sides of the paper storage in a second direction orthogonal to a first direction corresponding to a paper conveyance direction, wherein the air blowing unit blows air to a side end of each of the sheets of paper in the paper storage to float one or some of the sheets of paper in the paper storage; anda paper conveyance unit disposed above the paper storage, wherein the paper conveyance unit holds, by suction, an uppermost sheet of paper among the floated sheets of paper, and conveys the uppermost sheet of paper, whereinan air blowing position of the air blowing unit is changeable in the first direction according to information about the sheets of paper.2. The paper feed mechanism according to claim 1 , whereina lateral-side regulation unit for regulating sheets of paper is provided on each of both sides of the paper storage,the air blowing unit is located in the lateral-side regulation unit, andthe lateral-side regulation unit is movable in the first direction.3. The paper feed mechanism according to claim 1 , whereina plurality of the air blowing units are provided, and an air ...

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Номер записи: 70
28-01-2021 дата публикации

DOUBLE FEED DETECTION USING LOAD SENSOR

Номер: US20210024311A1
Автор: AOKI Eiji, LEE Jinsoo
Принадлежит: Hewlett-Packard Development Company, L.P.

An image forming apparatus including a print engine to form an image on an image forming medium, a conveyance device to provide printing paper using a feed roller and a conveyance roller installed to face the feed roller to the print engine, a sensor to sense pressure applied to the conveyance roller, and a processor to identify whether double feed occurs on the basis of a signal provided from the sensor. 1. An image forming apparatus including:a print engine to form an image on an image forming medium;a conveyance device to provide printing paper to the print engine using a feed roller and a conveyance roller installed to face the feed roller;a sensor to sense pressure applied to the conveyance roller; anda processor to identify whether double feed occurs based on a signal provided from the sensor.2. The image forming apparatus as claimed in claim 1 , wherein when a variation of pressure sensed by the sensor while the printing paper is passing through the feed roller is equal to or greater than a predetermined value claim 1 , the processor identities that double feed occurs.3. The image forming apparatus as claimed in claim 1 , wherein when pressure sensed by the sensor while the printing paper is passing through the teed roller is outside a predetermined range claim 1 , the processor identifies that double feed occurs.4. The image forming apparatus as claimed in claim 1 , further including:a torque limiter installed coaxially with the conveyance roller, the torque limiter having a predetermined threshold torque value,wherein when a paper conveyance frictional force generated between the conveyance roller and the feed roller is smaller than the threshold torque value, the processor controls the conveyance roller to be driven in a reverse direction opposite to a conveyance direction of the printing paper.5. The image forming apparatus as claimed in claim 4 , wherein when the conveyance roller is driven in the reverse direction claim 4 , the processor identifies ...

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Номер записи: 71
28-01-2021 дата публикации

SENSOR CLEANING FOR PAPER FEEDING SYSTEM OF IMAGE FORMING APPARATUS

Номер: US20210024313A1
Автор: CHO Byung Hee, Park Jin Ho
Принадлежит: Hewlett-Packard Development Company, L.P.

An image forming apparatus includes a printing engine to form an image on a printing medium, and a printing medium feeding device to supply the printing medium to the printing engine using a roller rotating in a feeding direction, and the printing medium feeding device includes a sensor to sense printing medium, and a cleaner to be driven by a reverse rotational force of the roller in a reverse direction to the feeding direction, to clean the sensing portion surface of the sensor. 1. An image forming apparatus , comprising:a printing engine to form an image on a printing medium; and a sensor having a sensing portion surface disposed to sense the printing medium; and', 'a cleaner to be driven by a reverse rotational force of the roller in a reverse direction to the feeding direction, to clean a sensing portion surface of the sensor., 'a printing medium feeding device to supply the printing medium to the printing engine using a roller rotating in a feeding direction, the printing medium feeding device including2. The image forming apparatus of claim 1 , wherein the cleaner reciprocates in a main scanning direction by the reverse rotational force of the roller.3. The image forming apparatus of claim 1 , wherein the cleaner comprises:a brush to clean the sensing portion surface of the sensor;a holder connected to the brush; anda convey screw to reciprocate the holder using the reverse rotational force of the roller.4. The image forming apparatus of claim 3 , wherein the holder and the brush are linked by at least one link claim 3 , and the brush is rotatably hinge-connected to a link among the at least one link at a predetermined angle.5. The image forming apparatus of claim 3 , further comprising:a one-way clutch provided on the roller, the one-way clutch to selectively provide the reverse rotational force of the roller to the convey screw.6. The image forming apparatus of claim 3 , whereinthe holder reciprocates by the convey screw from an end of the convey screw to ...

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Номер записи: 72
28-01-2021 дата публикации

SHEET LOADING DEVICE, SHEET POST-PROCESSING DEVICE PROVIDED THEREWITH, AND IMAGE FORMING SYSTEM

Номер: US20210024316A1
Автор: Iwamoto Kazuhisa, KOTANI Takashi
Принадлежит: KYOCERA Document Solutions Inc.

A sheet loading device includes a discharge roller pair, a loading tray, a paddle member, a sheet holding member, a tray lifting-lowering drive portion, a top surface detection sensor, and a control portion. The control portion is capable of performing a lifting-lowering operation to arrange the loading tray at a reference position by lowering the loading tray with the sheet holding member arranged at the holding position to turn the top surface detection sensor into an off state, then lifting the loading tray to turn the top surface detection sensor into an on state, and then lowering the loading tray again to turn the top surface detection sensor into the off state and stopping the loading tray. With the loading tray at the reference position, a predetermined clearance is provided between a top surface of a sheet loaded on the loading tray and a rotational orbit of the paddle member. 1. A sheet loading device comprising:a discharge roller pair which includes a drive roller and a driven roller which follows the drive roller to rotate, and which discharges a sheet;a loading tray which is arranged on a downstream side of the discharge roller pair with respect to a discharge direction of the sheet, and on which sheet discharged by the discharge roller pair is loaded;a paddle member which is arranged coaxial with the drive roller, and which rotates in a same direction as the drive roller to thereby come into contact, from above, with an upstream part, in the discharge direction, of the sheet discharged by the discharge roller pair;a sheet holding member which is arranged below the discharge roller pair, and which is swingable between a holding position at which the sheet holding member holds the upstream part, in the discharge direction, of the sheet loaded on the loading tray and a retraction position at which the sheet holding member releases holding of the sheet;a tray lifting-lowering drive portion which lifts and lowers the loading tray;a top surface detection ...

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Номер записи: 73
24-04-2014 дата публикации

IMAGE FORMING APPARATUS WITH MOVABLE FEED GUIDE

Номер: US20140110899A1
Автор: SATO Tetsuya, Takahashi Kazutoshi
Принадлежит:

An image forming apparatus according to an embodiment comprises a feed guide forming a feed path of a sheet and having an end portion movable between a closed position and an open position by rotating around a shaft, wherein the end portion is positioned above the shaft when the feed guide is in the open position, and the feed guide is configured to provide access for removal of a jammed sheet when in the open position. The image forming apparatus further comprises a holding unit configured to releasably hold the end portion of the feed guide in the open position. 1. An image forming apparatus comprising: the end portion is positioned above the shaft when the feed guide is in the open position, and', 'the feed guide is configured to provide access for removal of a jammed sheet when in the open position; and, 'a feed guide forming a feed path of a sheet and having an end portion movable between a closed position and an open position by rotating around a shaft, wherein'}a holding unit configured to releasably hold the end portion of the feed guide in the open position.2. The apparatus according to claim 1 , further comprising:a side wall opening portion forming an external wall of one side surface of the image forming apparatus and configured to open to provide access to the feed guide for removal of the jammed sheet; andan original carrying unit comprising a transparent plate on an upper surface on which a sheet to be scanned is placed, and a recess portion on the one side surface side of the upper surface, the recess portion shaped and configured to receive a top portion of the side wall opening portion when the side wall opening portion is closed.3. The apparatus according to claim 1 , further comprising:a detecting unit configured to detect whether or not a sheet to be fed reaches the feed guide, and to detect whether or not the end portion of the feed guide is in the open position.4. The apparatus according to claim 3 , wherein the detecting unit comprises:a feed ...

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Номер записи: 74
29-01-2015 дата публикации

SHEET FEEDER, DOCUMENT READER, AND IMAGE FORMING APPARATUS

Номер: US20150028533A1
Автор: Kato Takaki, KOBAYASHI Yuji, Tachibana Yuta, Teshima Satoshi, Yamaguchi Hiroshi
Принадлежит: KONICA MINOLTA, INC.

A sheet feeder picking up and transporting sheets includes a transport unit transporting sheets along a sheet transport path one by one, a gap occurrence detection unit detecting, within a predetermined section of the sheet transport path, occurrence of a gap between sheets, and a controller controlling a timing of the transport of sheets according to a result of the detection. The gap occurrence detection unit includes a first detection unit and a second detection unit. The first detection unit is configured to detect light that is emitted toward the predetermined section, reaches a converging surface thereof across the predetermined section, and converged on a receiving element thereof. The second detection unit is configured to detect light reflected by a sheet passing through the predetermined section. The occurrence of the gap is detected based on outputs from the first detection unit and the second detection unit. 1. A sheet feeder for sequentially picking up sheets from a sheet stack and continuously transporting the sheets along a sheet transport path , the sheet feeder comprising:a transport unit that transports the sheets along the sheet transport path one by one;a gap occurrence detection unit that detects, within a predetermined section of the sheet transport path, occurrence of a gap between the trailing edge of a preceding sheet and the leading edge of a following sheet; anda controller that controls a timing at which the transport unit starts transporting the following sheet according to a result of the detection by the gap occurrence detection unit,the gap occurrence detection unit including a first detection unit and a second detection unit, a first light emitting element that is disposed on a first side of the sheet transport path and emits diffused light at least toward the predetermined section;', 'a first light receiving element that is disposed on the first side of the sheet transport path; and', 'a converging reflector that is disposed on a ...

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Номер записи: 75
23-01-2020 дата публикации

AUTOMATED METHODS AND SLIDE PROCESSING APPARATUSES

Номер: US20200025655A1
Автор: Hassen Charles Nathan, Thompson Michael J.
Принадлежит:

A system is capable of detecting substrates and can differentiate between zero, one, or multiple transparent or semi-transparent substrates in a stack. The system can include an optical sensor, an optically anti-reflective element, and a detector. The optical sensor outputs light towards the optically anti-reflective element. The light detector is positioned to detect light from the light source that is reflected by substrates, if any, positioned within a detection zone between the optically anti-reflective element and the detector. 137-. (canceled)38. A method for detecting substrates using a transparent substrate detector device with a detection zone , the method comprising:robotically carrying one or more substrates toward the detection zone;outputting light toward the one or more substrates at the detection zone such that at least a portion of the outputted light is reflected by the one or more substrates and another portion of the outputted lighted is transmitted through the one or more substrates;detecting the outputted light that is reflected by each of the one or more substrates; anddetermining a number of substrates at the detection zone based on the detected outputted reflected light.39. The method of claim 38 , wherein determining the number of substrates includes determining (a) whether the one or more substrates carried to the detection zone includes a single substrate only and/or (b) whether the one or more substrates includes multiple substrates.40. The method of claim 38 , further comprising:determining a detection signal corresponding to an intensity of the detected outputted light;comparing the detection signal to a reference signal, which corresponds to absence of substrate(s) at the detection zone; andwherein determining the number of substrates at the detection zone is based on the comparison of the detection signal to the reference signal.41. The method of claim 38 , further comprising substantially eliminating detection of the another portion ...

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Номер записи: 76
29-01-2015 дата публикации

SHEET SUPPLY APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20150029525A1
Автор: Mizuno Hiroshi, Oomoto Noboru, OSHIMA Ryo, SHIMOYAMA Atsuhiko, UMEMOTO Hiroaki
Принадлежит:

A sheet supply apparatus includes: a tray on which a stack of sheets can be placed, an air blowing section that blows air towards the stack of sheets to float at least a topmost sheet, a sucking and conveying section, above the tray, that sucks said floating sheet(s) and conveys said sheet(s) in a prescribed direction, and a first light source that emits a first stripshaped slit light having a vertically extending component such that the slit light crosses at least a first edge of a first floating sheet and a second edge of a second floating sheet. An image capture section captures an image of the first slit light, a calculating section calculates a vertical clearance between the first and second sheets, and an air amount adjusting section adjusts an amount of air to be blown by the air blowing section based on the calculated vertical clearance. 1. A sheet supply apparatus comprising:a tray on which a stack of sheets, which is formed with a plurality of vertically stacked sheets, is capable of being placed;an air blowing section that blows air toward the stack of sheets placed on the tray to float at least a topmost sheet;a sucking and conveying section that sucks the topmost sheet floated by the air blowing section and conveys the topmost sheet in a prescribed conveying direction, the sucking and conveying section being disposed above the tray;a first light source that emits first slit light, which is stripshaped light having a component extending vertically, the first slit light crossing at least a first edge of a first sheet and a second edge of a second sheet below the first sheet, the first sheet and the second sheet being part of a plurality of floated sheets;an image capture section that captures an image of the first slit light emitted to the first sheet and the second sheet, the image capture section being oriented in an image capture direction that is different, in a plane parallel to the first sheet and the second sheet, from a direction in which the ...

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Номер записи: 77
04-02-2016 дата публикации

CASHBOX WITH LATCH ARRANGEMENT

Номер: US20160031664A1
Автор: Onipchenko Oleksandr, Rabinovich Pavel
Принадлежит:

A banknote drive arrangement adjacent a banknote inlet repositions and drives a banknote into a banknote processing pathway for validation. The drive arrangement includes two drive rollers preferably spaced either side of a longitudinal axis of the pathway and adjacent to the banknote inlet. Each drive roller is separately controlled to allow different rotational speeds thereof (and forward and rearward movement Of a banknote) to allow shifting of a received end portion of a banknote before receiving the entire length of the banknote. This arrangement is preferably used with a sensing arrangement for sensing misalignment of an inserted banknote and if sensed, using the different rotational speeds to correct misalignment and preferably center a banknote in the processing pathway. 1. A banknote validator comprising:a banknote processing pathway configured to allow movement of banknotes, the banknote processing pathway including a banknote inlet at a downstream end through which banknotes are received, the banknote processing pathway including an initiation sensor adjacent the banknote inlet and configured to activate when a portion of the banknote is inserted through the banknote inlet;a pair of drive rollers spaced in the width of and partially projecting into the banknote processing pathway at a position upstream of the initiation sensor, each of the drive rollers including an opposed passive roller located on an opposite side of and projecting into the banknote processing pathway to engage the respective drive roller when the banknote is not present and movable to accommodate the thickness of the banknote between the respective drive roller and passive roller;a power drive arrangement configured to allow a same rotational speed or different rotational speeds of the drive rollers while the drive rollers maintain engagement with and drive a banknote with respect to the banknote processing pathway, the power drive arrangement being initiated by the activation of the ...

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Номер записи: 78
01-02-2018 дата публикации

ADAPTIVE PRESSURE MEDIA FEEDING

Номер: US20180029813A1
Автор: Gillier Jason Michael, Sonnenberg Matthew, Widsten Benjamin T.
Принадлежит:

A tiltenator of a media separator module (integrated within a valuable media depository) adaptively controls pressure maintained against a bunch of media as individual items from the bunch are fed through the media separator module. 1. A method , comprising:setting a pressure against a bunch of media items being fed individually from the bunch through a media separator module; andadaptively adjusting the pressure for separating the items from the bunch.2. The method of claim 1 , wherein setting further includes setting the pressure as an initial pressure against the bunch as a particular pressure used for a predefined type of media and predefined condition for the predefined type.3. The method of claim 2 , wherein adaptively adjusting further includes incrementally increasing the pressure when a topmost item from the bunch fails to reach a downstream sensor of the media separator module.4. The method of further comprising claim 3 , iterating the incremental increase in the pressure processing until the topmost item is detected by the downstream sensor.5. The method of claim 4 , wherein iterating further includes exiting iteration of the incremental increase in the pressure processing when a predefined number of iterations is exhausted with no detection of the topmost item as having reached the downstream sensor.6. The method of claim 5 , wherein exiting further includes resetting a current pressure against the bunch to the initial pressure and backing the topmost item and the bunch back to an entry feed point of the media separator.7. The method of claim 4 , wherein iterating further includes decreasing a current pressure against the bunch as soon as the topmost item is detected as having reached the downstream sensor.8. The method of claim 7 , wherein decreasing further includes decreasing the current pressure while at least a portion of the topmost item remains partially within the bunch.9. The method of claim 8 , wherein decreasing further includes setting the ...

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Номер записи: 79
01-02-2018 дата публикации

DOUBLE FEED RECOVERY AND PROCESSING

Номер: US20180029814A1
Автор: Gillier Jason Michael, Widsten Benjamin T.
Принадлежит:

A media separator module of a valuable media depository is selectively controlled to progressively and selectively activate drives for double feed media recovery processing when two items of media are detected within the media separator module. 1. A method , comprising:(i) detecting, by executable instructions that represent a double feed recovery controller, the executable instructions execute on at least one processor of a media separator module a double media condition within a media separator module for two items of media; and(ii) selectively and progressively controlling, by the double feed recovery controller, opposing drives of the media separator module for separating the two items into a top item and a bottom item and ejecting the top item from the media separator module in response to detection of the double media condition by selectively activating and deactivating combinations of the opposing drives and selectively controlling directions of rotation for the combinations of the opposing drives in response to time delays associated with obtaining at least three readings from sensors of the media separator module.2. The method of further comprising iterating (ii) claim 1 , by the double feed recovery controller until the double media condition becomes a single media condition.3. The method of claim 2 , wherein iterating further includes ceasing iterations claim 2 , by the double feed recovery controller claim 2 , when a threshold number of iterations is reach with the double media condition remaining and backing the two items out of the media separator module to a staging position for refeed into the media separator module.4. The method of claim 1 , wherein selectively and progressively controlling further includes stopping claim 1 , by the double feed recovery controller claim 1 , a top advance drive of the opposing drives while continuing to rotate a retard drive of the opposing drives in an opposite direction from a direction of travel for the items ...

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Номер записи: 80
01-02-2018 дата публикации

Document conveying apparatus, control method, and control program

Номер: US20180029815A1
Автор: Shigeru Yonemura
Принадлежит: PFU Ltd

The document conveying apparatus includes a separation roller, a conveying roller, a driving force generation module configured to be capable of generating a first driving force with a rotation in a first direction, and capable of generating a second driving force with a rotation in a second direction opposite to the first direction, a driving force transmission module, a determination module for determining whether a document has passed the separation roller, and a control module for switching a driving force from the first driving force to the second driving force in accordance with a determination result. The driving force transmission module performs separation operation by transmitting the first driving force to the separation roller, and conveys the documents by transmitting the second driving force to the conveying roller and cuts off transmission of the second driving force to the separation roller, in accordance with the switching.

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Номер записи: 81
02-02-2017 дата публикации

SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM

Номер: US20170031297A1
Автор: ANDO Yutaka, ARAI Akihiro, Nishikata Akinobu, YOKOYA Takashi
Принадлежит:

A sheet processing apparatus that is capable of facilitating a process by eliminating waste of a result even if a translucent sheet is conveyed. A conveyance unit conveys a sheet received from an image forming apparatus. An optical sensor detects a sheet end conveyed. An alignment unit aligns sheets based on information detected by the optical sensor. A post-process unit performs a post-process to the sheets aligned. An input unit inputs sheet information about a type of the sheet to be received from the image forming apparatus. A control unit stops sheet conveyance when the sheet information indicates a first type sheet and when the optical sensor cannot detect the sheet end, and continues sheet conveyance when the sheet information indicates a second type sheet of which transmittance is higher than the first type sheet and when the optical sensor cannot detect the sheet end. 1. A sheet processing apparatus comprising:a conveyance unit configured to convey a sheet received from an image forming apparatus along a conveyance path;an optical sensor configured to be provided on the conveyance path and to detect the end of the sheet during conveyance;an alignment unit configured to align sheets conveyed by the conveyance unit based on information about the end of the sheet detected by said optical sensor;a post-process unit configured to perform a post-process to the sheets aligned by said alignment unit;an input unit configured to input sheet information about a type of the sheet to be received from the image forming apparatus; anda control unit configured to control said conveyance unit so as to stop a sheet conveyance operation when the sheet information input with said input unit indicates a first type sheet and when said optical sensor cannot detect the end of the sheet during conveyance, and to control said conveyance unit so as to continue the sheet conveyance operation when the sheet information input with said input unit indicates a second type sheet of which ...

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Номер записи: 82
05-02-2015 дата публикации

SHEET BRAKING DEVICE

Номер: US20150033922A1
Автор: GNAN Alfons, GRILL Martin
Принадлежит:

The invention relates to a sheet braking device for braking sheets transported in a transport direction. The sheet braking device comprises at least one holder, at least one sheet guide unit arranged adjacent to the at least one holder, and at least one sheet braking unit which is held by the at least one holder, is arranged adjacent to the at least one sheet guide unit, comprises at least one sheet braking body which has a first braking region to exert a braking force on the sheet to be braked, and comprises at least one second sheet braking body which has a second braking region to exert a braking force on the sheet to be braked. The at least one sheet braking unit is configured in such a way that in order to reduce the speed of the sheet, the first braking region and the second braking region are spaced from each other in the transport direction when acting upon the sheet to be braked. 1. A sheet braking device for braking sheets transported in a transport direction , the sheet braking device comprisinga) at least one holder;b) at least one sheet guide unit arranged adjacent to the at least one holder for guiding the sheets to be braked which are transported in the transport direction; and i) is held by the at least one holder;', 'ii) is arranged adjacent to the at least one sheet guide unit;', 'which has a first braking region to exert a braking force on the sheet to be braked which is transported in the transport direction; and', 'iii) comprises at least one first sheet braking body'}, 'which has a second braking region to exert a braking force on the sheet to be braked which is transported in the transport direction,', 'iv) comprises at least one second sheet braking body'}, 'v) wherein the at least one sheet braking unit is configured in such a way that when acting upon the sheet to be braked which is transported in the transport direction, the first braking region of the at least one first sheet braking body and the second braking region of the at least one ...

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Номер записи: 83
30-01-2020 дата публикации

PAPER FEEDING APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20200031599A1
Автор: Okano Nobuhiko
Принадлежит:

A paper feeding apparatus includes a tray, an air blower, a floating detector, and a hardware processor. In the tray, a sheet of paper is loaded. The air blower blows air to the sheet loaded in the tray to float the sheet. The floating detector is provided above the sheet loaded in the tray and detects the floating of the sheet to a predetermined level. The hardware processor causes the air blower to blow the air and determines a basis weight of the sheet loaded in the tray from an air amount that has caused the floating detector to detect the floating of the sheet. 1. A paper feeding apparatus comprising:a tray where a sheet of paper is loaded;an air blower that blows air to the sheet loaded in the tray to float the sheet;a floating detector that is provided above the sheet loaded in the tray and detects the floating of the sheet to a predetermined level; anda hardware processor that causes the air blower to blow the air and determines a basis weight of the sheet loaded in the tray from an air amount that has caused the floating detector to detect the floating of the sheet.2. The paper feeding apparatus according to claim 1 , wherein the hardware processor determines the basis weight of the sheet loaded in the tray from the air amount having caused the floating detector to detect the floating of the sheet by referring to information that is stored in a storage and indicates a correspondence relationship between an air amount of the air blower and a basis weight of a sheet of paper claim 1 , the air amount causing the floating detector to detect floating of the sheet.3. The paper feeding apparatus according to claim 1 , wherein the floating detector includes: a body that swings by contact with the sheet that has been floated to the predetermined level; and an optical sensor that detects the swing of the body.4. The paper feeding apparatus according to claim 1 , wherein the floating detector includes an optical sensor that measures a distance to the sheet loaded in ...

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Номер записи: 84
04-02-2021 дата публикации

SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS

Номер: US20210032055A1
Автор: Uehara Tomoya
Принадлежит:

A sheet feeding device includes a detachable separation unit, a conveyance unit, a guide member, an urging member, and an opening and closing member. The feeding unit feeds a stored sheet. The separation unit separates sheets fed by the feeding unit one by one. The conveyance unit conveys the sheet. Urged by the urging member, the guide member guides the sheet toward the conveyance unit and rotates about a first rotating shaft. The opening and closing member opens and closes. In a state in which the opening and closing member is closed, the guide member is positioned in a first position in which the guide member forms a conveyance path. In a process in which the opening and closing member is opened, a free end of the guide member moves upwardly about the first rotating shaft, by using an urging force, from the first to a second position. 1. A sheet feeding device comprising:a storage unit configured to store a sheet;a feeding unit configured to feed the sheet stored in the storage unit;a separation unit configured to separate sheets fed by the feeding unit one by one, wherein the separation unit is detachable from the sheet feeding device;a conveyance unit located on a downstream side of the separation unit in a sheet conveyance direction and above the separation unit and configured to convey the sheet;a guide member located on the downstream side of the separation unit in the sheet conveyance direction and above the separation unit and configured to form a conveyance path to guide the sheet toward the conveyance unit, wherein the guide member is configured to rotate about a first rotating shaft;an urging member configured to urge the guide member; andan opening and closing member configured to face the guide member and to be opened and closed with respect to a main body unit of the sheet feeding device,wherein, in a state in which the opening and closing member is closed with respect to the main body unit, the guide member is positioned in a first position in which ...

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Номер записи: 85
04-02-2021 дата публикации

TRANSPORT APPARATUS

Номер: US20210032057A1
Автор: TAKAMATSU Seiji
Принадлежит:

A transport apparatus includes a speaker and a mike disposed at respective positions between which a transport path of a medium is interposed, where the speaker and the mike face each other, a drive circuit that outputs a drive signal to the speaker, an amplifier circuit formed by coupling a plurality of amplifiers in series, where the amplifier circuit amplifies and outputs an output signal of the mike, a processor to which the output signal of the amplifier circuit is input, an attenuation circuit disposed in a stage preceding a predetermined amplifier, where the attenuation circuit attenuates an input signal and outputs the input signal to the predetermined amplifier, and a switch that switches an attenuation factor by the attenuation circuit. 1. A transport apparatus comprising:a transport mechanism for transporting a medium along a predetermined transport path;a speaker and a mike disposed at respective positions between which the transport path is interposed, the speaker and the mike facing each other;a drive circuit that outputs a drive signal to the speaker;an amplifier circuit formed by coupling a plurality of amplifiers in series, the amplifier circuit amplifying and outputting an output signal of the mike;a processor to which the output signal of the amplifier circuit is input;an attenuation circuit disposed in a stage preceding a predetermined amplifier of the plurality of amplifiers, the attenuation circuit attenuating an input signal to output the attenuated input signal to the predetermined amplifier; anda switch that switches an attenuation factor by the attenuation circuit, whereinthe processorcauses the switch to switch the attenuation factor by the attenuation circuit to a first attenuation factor among the first attenuation factor and a second attenuation factor having a lower attenuation degree than the first attenuation factor in a state where the medium is not present between the speaker and the mike to adjust a drive signal of the drive ...

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Номер записи: 86
04-02-2021 дата публикации

CONVEYOR DEVICE

Номер: US20210032058A1
Автор: SHIRAI Wataru, TAKATSUKI Yasushi
Принадлежит: KYOCERA Document Solutions Inc.

A conveyor device includes a conveyance section, a detector, and a controller. The conveyance section includes a registration roller. The conveyance section conveys a sheet. The detector detects a physical quantity associated with a skew in the sheet. The controller controls the conveyance section. The controller determines, based on a result of detection by the detector, whether or not rotation of the registration roller is to be stopped to perform an operation to correct the skew in the sheet. 1. A conveyor device comprising:a conveyance section which includes a registration roller and is configured to convey a sheet;a detector configured to detect a physical quantity associated with a skew in the sheet; anda controller configured to control the conveyance section, whereinthe controller determines, based on a result of detection by the detector, whether or not rotation of the registration roller is to be stopped to perform an operation to correct the skew in the sheet.2. The conveyor device according to claim 1 , whereinthe physical quantity associated with the skew in the sheet is a quantity indicating a slant of the sheet with respect to a conveyance direction of the sheet,the detector includes a first detector which detects the physical quantity indicating the slant of the sheet, andthe controller determines, based on a result of detection by the first detector, whether or not the rotation of the registration roller is to be stopped to perform the operation to correct the skew in the sheet.3. The conveyor device according to claim 1 , whereinthe physical quantity associated with the skew in the sheet is an amount indicating a thickness of the sheet,the detector includes a second detector which detects the physical quantity indicating the thickness of the sheet, andthe controller determines, based on a result of detection by the second detector, whether or not the rotation of the registration roller is to be stopped to perform the operation to correct the skew ...

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Номер записи: 87
04-02-2021 дата публикации

DETECTING SIZE OF PRINT MEDIUM USING SENSORS AVAILABLE ALONG PAPER PATH

Номер: US20210034005A1
Автор: HAN JaeHee
Принадлежит: Hewlett-Packard Development Company, L.P.

An image forming apparatus includes a load detection sensor located on a feeder to detect whether a print medium is loaded on the feeder, an overload detection sensor to detect an overload state of a discharger, and a controller to detect a width of the print medium according to a combination of a feeder load state of a feeder load detection signal of the load detection sensor and an overload state of a discharger overload detection signal of the overload detection sensor and control an image former to perform printing by applying different print modes according to the detected width of the print medium. 1. An image forming apparatus comprising:a feeder on which a print medium is loadable in a center alignment method;an image former to print an image by using an electrophotographic method on the print medium supplied from the feeder;a discharger on which the print medium having the image printed thereon is dischargeable;a load detection sensor located on the feeder to detect whether the print medium is loaded on the feeder;an overload detection sensor to detect an overload of the discharger; and detect a width of the print medium according to a combination of a feeder load state of a feeder load detection signal of the load detection sensor and an overload state of a discharger overload detection signal of the overload detection sensor, and', 'control the image former to perform printing by applying different print modes according to the detected width of the print medium., 'a controller to,'}2. The image forming apparatus of claim 1 , wherein the different print modes comprise a first mode and a second mode claim 1 , the second mode corresponding to a second print speed less than a first print speed corresponding to the first mode.3. The image forming apparatus of claim 2 , wherein a first print medium having a first width to which the first mode is to be applied, or', 'a second print medium having a second width less than the first width of the first print medium ...

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Номер записи: 88
12-02-2015 дата публикации

Sheet feeding device and image forming apparatus including the same

Номер: US20150042034A1
Автор: Jae Wuk LEE, Je Won Jeong
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A sheet feeding device selectively transmit a driving force transmitted to a double gear type driving gear to a first reverse gear to rotate a retard roller in a direction opposite to a rotation direction of a forward roller such that various kinds of sheets having different friction forces are separated and supplied, and an image forming apparatus including the same.

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Номер записи: 89
12-02-2015 дата публикации

SHEET DETECTING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE READING APPARATUS

Номер: US20150042038A1
Автор: Shiina Sachiyori
Принадлежит:

The invention provides a sheet detecting apparatus having a small mechanical loss amount by simplifying a configuration and saving a space. 1. A sheet detecting apparatus comprising:a sheet conveyor which conveys a sheet; anda sheet detector which detects the sheet conveyed by the sheet conveyor,wherein the sheet detector includes an abutting portion which is supported so as to be rotatable about a rotation shaft and against which the sheet abuts and a detector which detects the rotation of the abutting portion, andwherein the rotation shaft is disposed so as not to be parallel to a sheet surface of the sheet abutting against the abutting portion.2. The sheet detecting apparatus according to claim 1 , further comprising:a cam portion which causes the abutting portion to slid in the axial direction of the rotation shaft in response to the rotation of the abutting portion.3. The sheet detecting apparatus according to claim 1 ,wherein the rotation shaft and the abutting portion are disposed at positions deviated from each other in a sheet width direction of the sheet against which the abutting portion abuts.4. The sheet detecting apparatus according to claim 1 , further comprising:a sheet guide which guides the sheet conveyed by the sheet conveyor,wherein the abutting portion is provided in an end of an arm portion extending from the rotation shaft in a direction intersecting an axis line of the rotation shaft, andwherein the abutting portion is curved from the arm portion so as to be inserted into an opening formed in the sheet guide.5. The sheet detecting apparatus according to claim 1 ,wherein the rotation shaft is disposed so as to be inclined with respect to the normal direction of the sheet surface of the sheet against which the abutting portion abuts.6. The sheet detecting apparatus according to claim 5 ,wherein the angle of the rotation shaft with respect to the normal direction is set to be in the range of 30° to 50°.7. An image forming apparatus comprising:{' ...

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Номер записи: 90
08-02-2018 дата публикации

PAPER SHEET HANDLING APPARATUS AND JOINT MODULE

Номер: US20180040188A1
Автор: CHOU Hung-Hsun, Tsai Wen-Hsien
Принадлежит:

A paper sheet handling apparatus includes a housing, a first unit, a second unit, and a joint module. At least one of the first and second units is a slidable paper sheet module slidably disposed at a rail on the housing and includes a module channel. The joint module is disposed in the housing and includes a main body, a moving shaft, a joint conveying channel, and a limiting member. The main body is located at a side of the rail. The moving shaft is slidably connected to the main body and configured to slide relative to the rail. The joint conveying channel is connected to the moving shaft. The limiting member is disposed on the main body and configured to limit the moving shaft to move between an outer point and an inner point. The outer point is located closer to the rail than the inner point. 1. A paper sheet handling apparatus , comprising:a housing;a first unit disposed within the housing and used to receive and dispense a paper sheet;a second unit disposed within the housing and used to store the paper sheet, wherein at least one of the first unit and the second unit is a slidable paper sheet module that is slidably disposed at a rail of the housing and includes a module channel; and a main body located at a side of the rail;', 'a moving shaft slidably connected to the main body and configured to slide towards or away from the rail;', 'a joint conveying channel connected to the moving shaft; and', 'a limiting member disposed at the main body and configured to limit the moving shaft to move between an outer point and an inner point, wherein the outer point is located closer to the rail than to the inner point;, 'a joint module disposed between the first unit and the second unit, the joint module comprisingwherein when the moving shaft moves to the outer point, the joint conveying channel protrudes from a surface of the joint module facing towards the slidable paper sheet module, so as to dock with the module channel for conveying the paper sheet.2. The paper ...

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Номер записи: 91
07-02-2019 дата публикации

Clear Card Sensors

Номер: US20190039843A1
Автор: Ehrhardt Robert A.
Принадлежит:

An example method includes comparing, via circuitry, a first signal indicative of a first amount of light received by a first light sensor to a second signal indicative of a second amount of light received by a second light sensor, wherein the second light sensor is to compensate for an environmental change by detecting the second amount of light transmitted by a light source regardless of a presence or absence of an object in the conveyance path; determine, via the circuitry, whether a reflection loss is present based on the comparing of the first and second signals; and if the circuitry detects the reflection loss based on the comparing of the first and second signals, generating a presence indication. 1. A method for an apparatus including a first light sensor positioned on a first side of a conveyance path , a light source positioned on a second side of the conveyance path , and a second light sensor positioned on the second side of the conveyance path , the method comprising:comparing, via circuitry, a first signal indicative of a first amount of light received by the first light sensor to a second signal indicative of a second amount of light received by the second light sensor, wherein the second light sensor is to compensate for an environmental change by detecting the second amount of light transmitted by the light source regardless of a presence or absence of an object in the conveyance path;determine, via the circuitry, whether a reflection loss is present based on the comparing of the first and second signals; andif the circuitry detects the reflection loss based on the comparing of the first and second signals, generating a presence indication.2. A method as defined in claim 1 , wherein the light source is positioned such that a path from the light source to the object in the conveyance path is between thirty degrees and sixty degrees from normal.3. A method as defined in claim 1 , wherein the light source is positioned such that a path from the light ...

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Номер записи: 92
07-02-2019 дата публикации

PAPER FEEDING DEVICE, IMAGE FORMING APPARATUS AND PAPER FEEDING METHOD

Номер: US20190039844A1
Автор: KURITA Eizo
Принадлежит:

A paper feeding device according to an embodiment includes a paper feeding cassette that holds a plurality of sheets and has a stacking surface with an angle A relative to horizontal that changes depending on a quantity of sheets stacked thereon. A pickup roller feeds the plurality of sheets from the paper feeding cassette. A separation roller separates the plurality of sheets from each other in a case where the plurality of sheets are fed from the paper feeding cassette in an overlapped state. A guide unit has a guide surface which is inclined upwards on a downstream side thereof in the transport direction of the plurality of sheets. A drive unit changed an angle B of the guide surface relative to horizontal. A control device controls the drive unit to change the angle B based on the angle A. 1. A paper feeding device comprising:a paper feeding cassette configured to hold one or more sheets on a stacking surface;a pickup roller configured to feed a sheet from the paper feeding cassette;at least one separation roller arranged downstream from the paper feeding cassette in a transport direction of the sheet and configured to separate the sheet from another sheet in a case where a plurality of sheets is fed from the paper feeding cassette in an overlapped state;a guide unit arranged between the paper feeding cassette and the at least one separation roller, the guide unit having a guide surface which is inclined such that a downstream side thereof in the transport direction of the sheet is higher relative to an upstream side thereof in the transport direction of the sheet;a sensor configured to detect a quantity of sheets stacked on the stacking surface,a drive unit configured to change an angle of the guide surface relative to horizontal; and receive the detected quantity of sheets from the sensor; and', 'control the drive unit to change the angle of the guide surface such that, when the detected quantity of sheets is greater than a threshold, the angle of the guide ...

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Номер записи: 93
06-02-2020 дата публикации

SHEET SUCTION DEVICE, SHEET CONVEYING DEVICE INCORPORATING THE SHEET SUCTION DEVICE, PRINTER INCORPORATING THE SHEET CONVEYING DEVICE, AND SUCTION AREA SWITCHER

Номер: US20200039772A1
Автор: Miyagawa Hiroaki
Принадлежит: RICOH COMPANY, LTD.

A sheet suction device includes a sheet carrier, a suction unit, and a rotary body. The sheet carrier has a carrying region. The carrying region includes a plurality of suction openings. The sheet carrier is configured to rotate while holding a sheet. The suction unit is configured to communicate with the plurality of suction openings and suck air via the plurality of suction openings. The rotary body is disposed between the plurality of suction openings and the suction unit. The rotary body is configured to rotate to change a number of suction openings that communicate with the suction unit, among the plurality of suction openings of the sheet carrier. 1. A sheet suction device comprising:a sheet carrier having a carrying region, the carrying region including a plurality of suction openings,the sheet carrier configured to rotate while holding a sheet;a suction unit configured to communicate with the plurality of suction openings and suck air via the plurality of suction openings; anda rotary body disposed between the plurality of suction openings and the suction unit,the rotary body configured to rotate to change a number of suction openings that communicate with the suction unit, among the plurality of suction openings of the sheet carrier.2. The sheet suction device according to claim 1 ,wherein the sheet carrier is configured to hold a plurality of sheets on the sheet carrier in a circumferential direction of the sheet carrier.3. The sheet suction device according to claim 1 , further comprising another rotary body having a plurality of openings that connects to the plurality of suction openings in the carrying region of the sheet carrier claim 1 ,wherein the plurality of openings of said another rotary body is disposed along a circumferential direction of said another rotary body,wherein the rotary body has a groove that is disposed along a circumferential direction of the rotary body and that communicates with the suction unit,wherein the rotary body is ...

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Номер записи: 94
06-02-2020 дата публикации

ULTRASONIC DEVICE

Номер: US20200039774A1
Автор: IWAI Hikaru, KIYOSE Kanechika, YAMADA Masayoshi
Принадлежит:

An ultrasonic device includes an ultrasonic element that performs at least one of transmitting an ultrasonic wave along a first axis and receiving the ultrasonic wave input along the first axis, and a protective member that is provided on the first axis and covers the ultrasonic element, in which the protective member has a plurality of pores through which the ultrasonic wave traveling along the first axis passes. 1. An ultrasonic device comprising:an ultrasonic element that performs at least one of transmitting an ultrasonic wave along a first axis and receiving the ultrasonic wave input along the first axis; anda protective member that is provided on the first axis and covers the ultrasonic element, whereinthe protective member has a plurality of pores through which the ultrasonic wave traveling along the first axis passes.2. The ultrasonic device according to claim 1 , further comprising:a substantially cylindrical shielding unit having the first axis as a central axis, whereinthe ultrasonic element is disposed to be surrounded by a cylindrical inner peripheral surface of the shielding unit,the shielding unit extends along the first axis from a position where the shielding unit surrounds the ultrasonic element, and has a through-hole through which the ultrasonic wave passes, the through-hole being provided at an extension tip end portion, andthe protective member is provided to cover the through-hole of the shielding unit.3. The ultrasonic device according to claim 2 , whereina sound absorbing unit surrounding the through-hole is provided on a surface of the extension tip end portion of the shielding unit, which is opposite to the ultrasonic element.4. The ultrasonic device according to claim 1 , whereinthe protective member is configured by arranging a plurality of wires along a first direction intersecting the first axis and a second direction intersecting the first axis and the first direction, anda normal line of a plane including the first direction and the ...

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Номер записи: 95
18-02-2016 дата публикации

SHEET FEED DEVICE

Номер: US20160046457A1
Автор: ISHIKAWA Mitunori
Принадлежит:

A sheet feed device includes a removal sheet feed tray, a bottom plate provided in the sheet feed tray, and can be lifted up together with one or more papers stacked thereon so as to make an uppermost paper positioned at an upper limit position, a sheet feeder that feeds out the papers stacked on the bottom plate sequentially from the sheet feed tray, a sheet detection member that detects whether or not at least one paper is stacked on the sheet feed tray, an upper limit detection member that detects whether or not the uppermost paper is positioned at the upper limit position, and an evacuator that evacuates the sheet detection member and the upper limit detection member to an evacuation position where the sheet detection member and the upper limit detection member never interfere a removal and an installation of the sheet feed tray. 1. A sheet feed device comprising:a removal sheet feed tray that is installed in the sheet feed device;a bottom plate that is provided in the sheet feed tray, and is capable of being lifted up together with one or more papers stacked thereon so as to make a leading portion of an uppermost paper positioned at an upper limit position when the sheet feed tray is installed in the sheet feed device;a base that is provided within the sheet feed device, and to which a sheet feeder, a sheet detection member and an upper limit detection member are attached;the sheet feeder that feeds out the papers stacked on the bottom plate sequentially from the sheet feed tray;the sheet detection member that detects whether or not at least one paper is stacked on the sheet feed tray by a contact detection with the paper or the bottom plate;the upper limit detection member that detects whether or not the leading portion of the uppermost paper is positioned at the upper limit position by a contact detection with the uppermost paper; andan evacuator that evacuates the sheet detection member and the upper limit detection member to an evacuation position where the ...

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Номер записи: 96
19-02-2015 дата публикации

SHEET MATERIAL CONVEYING DEVICE, IMAGE SCANNING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20150048566A1
Автор: AKIYAMA Joji, Fukuchi Masataka, Fukumoto Takashi, HAYASAKA Kenji, NAKANO Takashi, OHTA Takanori, UTAGAWA Hiroaki
Принадлежит: RICOH COMPANY, LIMITED

A sheet material conveying device includes: a sheet material housing unit; a sheet material conveying unit that conveys each sheet material to a predetermined conveyance target position; a separating/feeding unit that separates a sheet material from sheet materials in the sheet material housing unit and conveys the separated sheet material alone to the sheet material conveying unit; a multi-feed detecting unit that detects whether multi-feed occurs in which a plurality of sheet materials are fed from the separating/feeding unit to the sheet material conveying unit; and an internal sheet material detecting unit that detects presence of the sheet material in the sheet material conveying unit. The sheet material conveying device performs multi-feed failure detection control for detecting whether a failure occurs in the multi-feed detecting unit before notification of a detection result of the internal sheet material detecting unit. 1. A sheet material conveying device comprising:a sheet material housing unit that houses a plurality of sheet materials in a stacked manner;a sheet material conveying unit that conveys each of the sheet materials to a predetermined conveyance target position;a separating/feeding unit that separates a sheet material from the sheet materials in the sheet material housing unit and conveys the separated sheet material alone to the sheet material conveying unit;a multi-feed detecting unit that detects whether multi-feed occurs in which a plurality of sheet materials are fed from the separating/feeding unit to the sheet material conveying unit; andan internal sheet material detecting unit that detects presence of the sheet material in the sheet material conveying unit, whereinthe sheet material conveying device performs multi-feed failure detection control for detecting whether a failure occurs in the multi-feed detecting unit before notification of a detection result of the internal sheet material detecting unit.21. The sheet material conveying ...

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Номер записи: 97
19-02-2015 дата публикации

IMAGE FORMING APPARATUS, METHOD OF FORMING IMAGE, AND IMAGE FORMING SYSTEM

Номер: US20150049356A1
Автор: SAITSU Yasushi
Принадлежит:

An image forming apparatus includes: an image forming unit configured to form an image on a sheet based on a job; a sheet conveyance unit configured to convey a sheet through a conveyance path; and a control unit configured to control conveyance of a sheet, in which, when a jam has occurred in a sheet of during conveyance, the control unit sets order information of dischargeable sheets among unusable sheets remaining inside the apparatus after occurrence of the jam based on whether there is an unusable sheet on which image formation has been completed in the image forming unit, and discharges the unusable sheet to an outside of the apparatus through the conveyance path based on the set order information. 1. An image forming apparatus comprising:an image forming unit configured to form an image on a sheet based on a job;a sheet conveyance unit configured to convey a sheet through a conveyance path; anda control unit configured to control conveyance of a sheet, whereinwhen a jam has occurred in a sheet of during conveyance, the control unit sets order information of dischargeable sheets among unusable sheets remaining inside the apparatus after occurrence of the jam based on whether there is an unusable sheet on which image formation has been completed in the image forming unit, and discharges the unusable sheet to an outside of the apparatus through the conveyance path based on the set order information.2. The image forming apparatus according to claim 1 , wherein the control unit determines whether there is an unusable sheet on which image formation has been completed in the image forming unit based on whether there is an unusable sheet that has arrived at an exit of the image forming unit.3. The image forming apparatus according to claim 1 , wherein the conveyance path includes branching and merging.4. The image forming apparatus according to claim 1 , wherein claim 1 , when a jam of a sheet has occurred in one conveyance path that has branched claim 1 , the ...

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Номер записи: 98
03-03-2022 дата публикации

Image forming apparatus that identifies sheet thickness

Номер: US20220066378A1
Автор: Takuya Hamada
Принадлежит: Kyocera Document Solutions Inc

A transmitter transmits ultrasonic wave of a predetermined volume. A reflected ultrasonic wave receiver receives reflected ultrasonic wave, transmitted from the transmitter and reflected by a sheet. A permeated ultrasonic wave receiver receives permeated ultrasonic wave, transmitted by the transmitter and permeated through the sheet. A volume detector detects reflected volume of the reflected ultrasonic wave, and permeated volume of the permeated ultrasonic wave. The decider identifies a thickness of the sheet being transported by a transport device, and decides whether multifeed of the sheets is occurring, on a basis of a comparison result between the detected reflected volume and a reference reflected volume, and a comparison result between the detected permeated volume and a reference permeated volume.

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Номер записи: 99
23-02-2017 дата публикации

IMAGE READING APPARATUS HAVING FIRST MOTOR FOR ROTATING FEED ROLLER, AND SECOND MOTOR FOR ROTATING CONVEYANCE ROLLER AND REVERSE ROLLER

Номер: US20170050812A1
Автор: MUKAI Takaaki
Принадлежит:

In an image reading apparatus, in a first process, first and second motor rotate feed and conveyance rollers with circumferential speeds of first and second speeds, respectively. In the first process, the reverse roller has a first separation performance for separating a sheet from another sheet. In a second process, after a detector detects a leading edge of the sheet, the controller stops the first motor, and decelerates the second motor, and the reverse roller has a second separation performance lower than the first separation performance. In a third process, after a trailing edge of the sheet reaches a specific position, the first motor starts rotating the feed roller with the circumferential speed of the first speed. In a fourth process, after the trailing edge of the sheet passes through a reading end position, the controller accelerates the second motor. 1. An image reading apparatus comprising:a first motor;a second motor;a feed roller configured to rotate in a rotational direction by torque generated by the first motor so as to convey a sheet to in a conveyance direction;a reverse roller configured to be in peripheral contact with the feed roller, and configured to rotate in the rotational direction by torque received from the second motor via a torque limiter;a conveyance roller disposed downstream of the feed roller in the conveyance direction, and configured to rotate in the rotational direction by torque from the second motor so as to convey the sheet from the feed roller in the conveyance direction, a circumferential speed of the conveyance roller varying depending on a circumferential speed of the reverse roller;a reader disposed downstream of the conveyance roller in the conveyance direction and configured to read an image on the sheet at a reading position;a detector disposed between the conveyance roller and the reading position in the conveyance direction and configured to detect the sheet; anda controller comprising hardware configured to perform ...

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Номер записи: 100