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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 6564. Отображено 100.
05-01-2012 дата публикации

Sheet conveying apparatus and image forming apparatus

Номер: US20120001382A1
Автор: Takashi Yano
Принадлежит: Canon Inc

A sheet conveying apparatus includes a conveying portion which conveys a sheet, a lever which is pushed by the sheet conveyed by the conveying portion, and moves from a standby position, a detecting portion which generates a signal corresponding to a position of the lever, and generates a first signal when the lever moves in a first moving area from the standby position to a predetermined position and generates a second signal when the lever moves in a second moving area beyond the predetermined position, and a biasing portion which does not apply to the lever a biasing force when the lever is in the first moving area, and applies to the lever a biasing force opposite in a direction in which the lever is pushed by the sheet and moves when the lever is in the second moving area.

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02-02-2012 дата публикации

Image forming device

Номер: US20120025453A1
Принадлежит: Brother Industries Ltd

An image forming device, comprising: a sheet-like medium accommodation unit; a supply member that carries a sheet-like medium; a pair of separation members that separate the sheet-like medium one by one; an image formation unit; a carrying path; a re-carrying unit to move inversely the sheet-like medium whose top face has been subjected to printing; a moving mechanism to move the supply member close to or away from the sheet-like medium and to move the pair of separation members close to or away from each other so that a path for the inversely carried sheet-like medium is formed; and a control unit to control the moving mechanism such that, when back-face printing is performed, the supply member is in a state of being moved away from the sheet-like medium and the pair of separation members are in a state of being moved away from each other.

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09-02-2012 дата публикации

Device for supplying sheets

Номер: US20120035033A1
Автор: Fiorenzo Draghetti
Принадлежит: Gima SpA

A device ( 1 ) is described herein for supplying rough-shaped sheets, made especially of cardboard, for making a corresponding package for housing respective cigarettes or the like. The device comprises means ( 11 ) for supporting and conveying sheets (A) along a respective path, which comprise first and second means ( 111, 112 ) that still-retain respective ends (A 1 , A 2 ) of the sheet (A) along the advancement path.

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22-03-2012 дата публикации

Media Processing Device, Control Method For A Media Processing Device, And Recording Medium Storing A Program Executed By A Control Unit That Controls A Media Processing Device

Номер: US20120072616A1
Автор: Tomoharu Kifuku
Принадлежит: Seiko Epson Corp

Media processing devices, media processing device control methods, and computer-readable recording mediums storing programs that can be executed by control units that control media processing devices are provided. In one embodiment, a media processing device has a plurality of operation units that process roll paper and checks as a plurality of recording media, and a central processing unit (CPU) that controls the operation units by executing commands received from a host computer. When the CPU detects during a normal operating mode that commands for any of the operation units cannot be executed, the CPU switches to a limited operation mode in which commands for that operation unit cannot be executed, but commands from the host computer can be received and commands for other operation units can be executed.

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29-03-2012 дата публикации

Image recording apparatus

Номер: US20120074637A1
Автор: Yuta Uchino
Принадлежит: Brother Industries Ltd

An image recording apparatus including: (a) a recording portion for recording image on a top face of a sheet; (b) a supplying roller which is to be in contact with a bottom face of the sheet held in a tray and which is configured to supply the sheet toward a curved conveyance path; (c) a drive roller which is to be in contact with the top face of the sheet and which is configured to convey the sheet supplied from the supplying roller; and (d) a controlling portion which is configured, upon receipt of a command requesting start of conveyance of the sheet, to cause the supplying roller to be rotated without causing the drive roller to be rotated, and is configured, upon judgment that a leading end portion of the sheet has reached a flat surface extending away from the drive roller toward the recording portion, to cause the drive roller to be rotated.

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26-04-2012 дата публикации

System and method of gauging paper workflow

Номер: US20120099913A1
Автор: Jimmy JOSEPH
Принадлежит: General Electric Co

Systems and methods of monitoring a paper supply include a paper receptacle retains a supply of paper. The supply of paper includes at least one queue mark. A sensor detects the at least one queue mark. A processor receives a signal indicative of the at least one queue mark and calculates a value representative of a remaining amount of paper in the paper supply.

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28-06-2012 дата публикации

Sheet feeding device

Номер: US20120161387A1
Автор: Kenta Horade
Принадлежит: Brother Industries Ltd

A sheet feeding device includes a first roller configured to feed a sheet in a first direction along a first feed path, a second roller arranged on a downstream side of the first roller and configured to feed the sheet in the first direction along the first feed path, a sheet detection unit arranged between the first roller and the second roller. A rotation amount of the second roller from detection of the leading end of the sheet by the sheet detection unit to arrival of the sheet at a predetermined position on the downstream side is compensated based on the rotation speed of the first roller within a first period, which is a period from start of feeding of the sheet as the first roller is started to be driven to the detection of the leading end of the sheet by the sheet detection unit.

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13-09-2012 дата публикации

Sheet transport apparatus

Номер: US20120228822A1
Принадлежит: Nisca Corp

A sheet transport apparatus for transporting a sheet along a transport path has a sheet transport mechanism having a plurality of transport rollers that transports a sheet, and a jam clearing mechanism to remove a sheet which causes a transport failure and is jammed on the transport path. The jam clearing mechanism has a coupling member coupled to a transport roller, a jam clearing dial that transfers a rotation force to the transport roller via the coupling member, and a switching device for switching so that the coupling member separates from the transport roller in transporting a sheet, while being coupled to the transport roller in clearing a jam.

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27-09-2012 дата публикации

Transmission device for scanner

Номер: US20120240705A1
Автор: Ping-Chih Wang
Принадлежит: Mustek Systems Inc

A transmission device for a scanner includes a driving member, two worms, two rollers, and two worm wheels. The driving member is disposed on a housing base, and includes a main body and an output shaft. The output shaft has two ends disposed respectively at two opposite sides of the main body. The worms are connected respectively and fixedly to the two ends of the output shaft. The rollers are disposed rotatably on the housing base. The worm wheels are connected respectively and fixedly to the rollers, and mesh respectively with the worms.

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04-10-2012 дата публикации

Sheet conveying device

Номер: US20120248681A1
Принадлежит: Brother Industries Ltd

A sheet conveying device includes a cover member made of resin and partially defining a conveying path, a roller member rotatably disposed on the cover member and configured to convey a sheet along the conveying path, an urging member disposed between the cover member and a rotary shaft of the roller member and urging the roller member toward the conveying path while one end of the urging member contacts the rotary shaft, and a plate member made of metal and disposed between the cover member and the urging member. The plate member includes a first segment extending along the cover member and contacting the other end of the urging member, a second segment extending from an edge of the first segment in a direction toward the conveying path, and a third segment extending from an edge of the second segment in a direction different from the second segment extending direction.

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04-10-2012 дата публикации

Sheet conveying apparatus and image forming apparatus

Номер: US20120248684A1
Автор: Yuushi Sadamitsu
Принадлежит: Canon Inc

A sheet conveying apparatus includes a conveying roller which conveys a sheet, a cylindrical motor which drives the conveying roller, an outer diameter of the motor being approximately equal to or smaller than an outer diameter of the conveying roller, and a supporting portion which supports the motor such that a rotational center of the motor is arranged coaxially with a rotational center of a rotational shaft of the conveying roller the motor is positioned within a maximum sheet that can be conveyed by the conveying roller in a width direction perpendicular to the sheet conveying direction.

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29-11-2012 дата публикации

Image forming system, image forming method, and non-transitory computer readable medium

Номер: US20120301198A1
Принадлежит: Fuji Xerox Co Ltd

An image forming system includes an image forming unit, a feeding unit, a side edge reversal unit, a leading edge reversal unit, and a control unit, wherein, when there is a request for image formation on a bundle of sheets including a special sheet having a special part at an edge so that the edge is not straight and there is a request for image formation on both surfaces of the special sheet, the control unit controls the feeding unit, the image forming unit, the side edge reversal unit, the image forming unit to transport the special sheet having the image of the preceding page formed thereon to the downstream side after the front and back of the sheet are reversed by the leading edge reversal unit.

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13-12-2012 дата публикации

Pickup arm

Номер: US20120313314A1
Принадлежит: Hewlett Packard Development Co LP

A pickup arm for print media arranged to engage a roller.

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21-02-2013 дата публикации

Conveying apparatus and image forming apparatus

Номер: US20130043646A1
Автор: Hideyuki Terashima
Принадлежит: Canon Inc

A conveying apparatus includes a first pair of rollers having a drive roller and a pinch roller driven by the drive roller, a second pair of rollers provided downstream of the first pair of rollers, and an arm member supporting the drive roller and adapted to be swingable such that a force for pressing the drive roller against the pinch roller increases as a conveyance resistance of the sheet increases. The force for pressing the drive roller against the pinch roller decreases if driven by the moving sheet. The conveying speed of the second pair of rollers is set to be higher than the conveying speed of the drive roller so as to cause the drive roller to be driven by the sheet in the case where a skew of the sheet has been corrected and the sheet having the skew corrected is conveyed by the second pair of rollers.

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21-02-2013 дата публикации

Conveying apparatus and recording apparatus

Номер: US20130043648A1
Автор: Keisei Hakamata
Принадлежит: Canon Inc

A conveying apparatus including a conveying path with a curved path through which a sheet is passed, a main conveying roller provided downstream of the conveying path in a conveying direction of the sheet, the roller being rotated in a first direction to perform a conveying operation of conveying the sheet in the conveying direction and being rotated in a second direction opposite to the first direction to perform an skew correcting operation of forming a loop of the sheet, and an auxiliary guide member which supports the sheet using an inner side of a curvature of the conveying path and which is tilted toward the conveying direction side during the conveying operation when subjected to a force of the sheet which is stronger than during the skew correcting operation.

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11-04-2013 дата публикации

Image forming apparatus and rotation control method for motor driving rotation of timing rollers

Номер: US20130089364A1
Автор: Takumi MICHIBATA
Принадлежит: KONICA MINOLTA INC

An image forming apparatus having a transport device including a pair of timing rollers, operable to cause a leading edge of a recording sheet to abut a nip portion of the non-rotating timing rollers, and then initiate rotation to transport the sheet toward a transfer position, the transport device comprising: a motor transmitting rotational force to the timing rollers via a power transmission mechanism such that the timing rollers rotate; and a control unit controlling motor rotation, wherein the control unit activates the motor, causes the timing rollers to transport a first recording sheet at a first speed, and stops the motor once transportation is complete, and when a second recording sheet is to be subsequently transported at a different second speed, the control unit causes the timing rollers to execute an idle rotation at the second speed or at another speed, and then stopping, before beginning second sheet transportation.

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16-05-2013 дата публикации

RECORDING APPARATUS AND RECORDING MEDIUM CONVEYANCE METHOD

Номер: US20130120488A1
Принадлежит: SEIKO EPSON CORPORATION

A recording apparatus includes an ink discharge part, a first drive part that drives a rotation of a roll body in which the recording medium is wound, a second drive part that drives the conveyance part that conveys the recording medium, and a control part that controls operations of the first drive part and the second drive part. The control part drives the first drive part in a halted state of the second drive part and executes a measurement that measures a relationship between a load and a drive speed when conveying the recording medium and the control part executes the measurement for a single rotation of the roll body. The control part also provides a first measurement mode to execute the single rotation which is divided into plural number. 1. A recording apparatus comprising:an ink discharge part that discharges ink onto a recording medium;a first drive part that drives a rotation of a roll body in which the recording medium is wound;a conveyance part that conveys the recording medium and is located in a position downstream side than the roll body in a conveyance direction of the recording medium;a second drive part that drives the conveyance part; anda control part that controls an operation of the ink discharge part, the first drive part, the conveyance part, and the second drive part;wherein the control part drives the first drive part in a halted state of the second drive part and executes a measurement that measures a relationship between a load and a drive speed when conveying the recording medium;wherein the control part executes the measurement for a single rotation of the roll body and provides a first measurement mode to execute the single rotation which is divided into plural number.2. The recording apparatus according to claim 1 , wherein the control part provides a second measurement mode to execute the measurement in a range of that the roll body does not go into the single rotation.3. The recording apparatus according to claim 2 , wherein when a ...

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16-05-2013 дата публикации

PAPER-FEEDING DEVICE AND IMAGE FORMING APPARATUS

Номер: US20130120778A1
Автор: Tanonaka Atsushi
Принадлежит: KYOCERA Document Solutions Inc.

A paper-feeding device, during a paper leading edge detection interval that includes an expected point in time of arrival of a paper leading edge at a paper sensor installation location, and during a paper trailing edge detection interval that includes an expected point in time of passage of a paper trailing edge, allows the signal level of a paper detection signal that is outputted to a main body section to fluctuate on the basis of an actual output value of a paper sensor, and during a transition interval from the paper leading edge detection interval to the paper trailing edge detection interval, locks the paper detection signal that is outputted to the main body section, to the signal level at the end of the paper leading edge detection interval. 1. A paper-feeding device adapted to feed paper to a main body section of an image forming apparatus for printing and outputting paper , the paper-feeding device comprising:a conveyance path for conveying the paper towards the main body section;a paper detection section that has a paper sensor for detecting paper on the conveyance path, and that, on the basis of an output value of the paper sensor, generates a paper detection signal showing the state of conveyance of the paper; andan output section for outputting the paper detection signal to the main body section, the main body section recognizing the state of conveyance of the paper on the basis of the paper detection signal; wherein,during a paper leading edge detection interval that includes an expected point in time of arrival of a paper leading edge at a paper sensor installation location, and during a paper trailing edge detection interval that includes an expected point in time of passage of a paper trailing edge through the paper sensor installation location, the paper detection section allowing the signal level of the paper detection signal that the output section outputs to the main body section to fluctuate on the basis of an actual output value of the paper ...

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23-05-2013 дата публикации

Sheet feeder and image forming apparatus

Номер: US20130127107A1
Автор: Takeshi Goto
Принадлежит: Ricoh Co Ltd

In a sheet feeder comprising a pair of sheet feeding units and an image forming apparatus comprising the sheet feeder according to the present invention, a feed roller of a first sheet feeding unit of the pair of sheet feeding units is driven to rotate when a driving source of the first sheet feeding unit rotates in the forward direction, and a conveying roller of a second sheet feeding unit of the pair of sheet feeding units is driven to rotate when the driving source of the first sheet feeding unit rotates in the backward direction.

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30-05-2013 дата публикации

Image Reader and Sheet Feeding Device

Номер: US20130134667A1
Автор: NAKAYAMA Daisuke
Принадлежит:

An image reader may include a shaft, a roller, a guide, and a first side plate comprising a frame portion having a first frame portion, a pair of second frame portions, and a third frame portion connecting with the pair of second frame portions and a first hole surrounded by the frame portion. A first bearing member may be fitted in the first hole and include a bearing portion contacting the first frame portion. The first bearing member may be configured such that an end of the shaft is rotatably held. An engaged portion may extend from the bearing portion and include an engagement portion engaged with the first side plate. The image reader may further include a second side plate, a second bearing member disposed at the second side plate and configured such that the opposite side of the shaft is rotatably held, and a reading unit. 1. An image reader comprising:a shaft;a roller mounted on the shaft, the roller being configured to rotate on the shaft and feed a sheet;a guide having an opening at which the roller is disposed;a first side plate disposed on one side of the guide in an axial direction of the shaft, wherein the first side plate comprises a frame portion and a first hole, wherein the frame portion comprises a first frame portion, a pair of second frame portions and a third frame portion, wherein the pair of second frame portions extends from the first frame portion in an extending direction perpendicular to the axial direction, wherein the third frame portion connects with the pair of second frame portions, wherein the first hole is surrounded by the frame portion, and wherein the one side of the shaft is inserted into the first hole;a first bearing member fitted in the first hole, wherein the first bearing member comprises a bearing portion and an engaged portion, wherein the bearing portion contacts the first frame portion and is configured such that an end of the shaft is rotatably held, wherein the engaged portion extends in the extending direction from ...

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30-05-2013 дата публикации

ARRANGEMENT TO PRINT TO STRIP-LIKE PRINT MEDIA

Номер: US20130135416A1
Принадлежит:

A printing apparatus has a transport module with a moving transport belt tht transports strip-like print media past a printhead for printing thereon. The transport module has an entrance region upstream of the printhead, a magazine for the strip-like media located upstream of the entrance region of the transport module, the transport belt also serves as a take-off device to remove the strip-like media from the magazine, the magazine is mounted laterally offset with respect to the transport belt, thereby causing the strip-like media to be captured by the transport belt only in an edge region of the transport belt. The transport belt is wider by the edge region than is precisely needed to transport the strip-like media, in order to print on a remaining region of the strip-like media, which is smaller by the edge region than a total width of said strip-like media. 1. A printing apparatus for printing on strip-like print media , comprising:a printhead located behind a printing window in an apparatus housing;said apparatus housing comprising a transport module comprising a moving transport belt configured to transport strip-like print media past said printhead for printing thereon, said transport module comprising an entrance region upstream of said printhead;a magazine for said strip-like print media located upstream of said entrance region of said transport module, said transport belt being configured to function as a take-off device to remove said strip-like print media from said magazine;said magazine being mounted in said housing laterally offset with respect to said transport belt in order to cause said strip-like print media to be captured by said transport belt only in an edge region of said transport belt, said transport belt being wider by said edge region than is precisely needed to transport said strip-like print media; andsaid transport belt proceeding outside of and next to said print window in order to present a remaining region of said strip-like print ...

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30-05-2013 дата публикации

SHEET FEEDING DEVICE

Номер: US20130135699A1
Принадлежит: CANON KABUSHIKI KAISHA

A sheet feeding device includes a separation roller, a first conveyance roller arranged on a downstream side of the separation roller and conveys the sheet separated by the separation roller, a second conveyance roller further conveys the sheet conveyed by the first conveyance roller, wherein the separation roller and the first conveyance roller are driven exclusively of each other by a first motor, and a control unit controls such that, when a trailing edge of a sheet passes through the separation roller while the sheet is being conveyed by the first conveyance roller and the second conveyance roller, the first motor makes a conveyance speed of the first conveyance roller higher than the conveyance speed thereof before the trailing edge of the sheet passes through the separation roller, and that, when the trailing edge of the sheet passes through the first conveyance roller, the first motor drives the separation roller. 1. A sheet feeding device comprising:a feeding tray configured to stack thereon a plurality of sheets to be fed;a separation roller configured to separate the plurality of sheets stacked on the feeding tray one by one;a first conveyance roller arranged on a downstream side of the separation roller in a sheet conveyance direction and configured to convey a sheet separated by the separation roller;a first motor configured to drive the separation roller and the first conveyance roller independently of each other;a second conveyance roller configured to be driven by a second motor different from the first motor, arranged on the downstream side of the first conveyance roller, and configured to further convey the sheet conveyed by the first conveyance roller; anda control unit configured to control the first motor such that, when a trailing edge of the sheet passes through the separation roller while the sheet is being conveyed by the first conveyance roller and the second conveyance roller, the first motor makes a conveyance speed of the first conveyance ...

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06-06-2013 дата публикации

PRINTING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM STORING PROGRAM

Номер: US20130140767A1
Автор: Inui Masanobu
Принадлежит: CANON KABUSHIKI KAISHA

This invention relates to a printing apparatus and control method thereof. In the printing apparatus and control method thereof, an image is input, and an envelope is conveyed so that the long edge of the envelope serves as the leading end in the conveyance direction. When the envelope is conveyed so that the long edge of the envelope serves as the leading end in the conveyance direction, it is controlled to shift the image by a set offset amount to be used to print an image on an envelope, and print the image on the envelope. 1. A printing apparatus comprising:an input unit configured to input an image;a setting unit configured to set an offset amount to be used to print the image on an envelope;a conveyance unit configured to convey the envelope to set a long edge of the envelope as a leading end in a conveyance direction; anda control unit configured to, in a case where said conveyance unit conveys the envelope to set the long edge of the envelope as the leading end in the conveyance direction, control to shift the image by the offset amount set by said setting unit and print the image on the envelope.2. The apparatus according to claim 1 , whereinin a case where the image is input from an external apparatus, said control unit controls to shift the image by the offset amount set by said setting unit and print the image on the envelope, andin a case where the image is input by a reading unit of the printing apparatus, said control unit controls to print the image on the envelope without shifting the image by the offset amount set by said setting unit.3. The apparatus according to claim 1 , further comprising a display unit configured to display a warning message in a case where the offset amount set by said setting unit is not larger than a threshold.4. The apparatus according to claim 3 , wherein said display unit prompts a user to input another offset amount after displaying the warning message.5. The apparatus according to claim 1 , wherein the offset amount is ...

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13-06-2013 дата публикации

SHEET FEEDER FOR FEEDING SHEET AND IMAGE PROCESSING APPARATUS WITH SHEET FEEDER

Номер: US20130147107A1
Автор: Hanamoto Katsuhiko
Принадлежит: KYOCERA Document Solutions Inc.

A sheet feeder includes a sheet placing portion, a feeding member, a supporting body, a driver, an electromagnetic clutch and a retraction controller. The supporting body is capable of changing a posture between a sheet feeding posture of the feeding member and a retracting posture for retracting the feeding member. The electromagnetic clutch is capable of changing a state between an engaged state in which a drive force is transmitted to the supporting body and a disengaged state in which the drive force is not transmitted to the supporting body. The retraction controller stops the output of a drive force after the electromagnetic clutch is set in the engaged state and the supporting body is set to the retracting posture by the drive force, and sets the electromagnetic clutch in the disengaged state when an engagement keeping time elapses after the output of the drive force is stopped. 1. A sheet feeder , comprising:a sheet placing portion on which a sheet is to be placed;a feeding member that picks up a sheet from the sheet placing portion;a supporting body that supports the feeding member and capable of changing a posture between a sheet feeding posture for bringing the feeding member into contact with the upper surface of a sheet placed on the sheet placing portion and a retracting posture for retracting the feeding member upward relative to the sheet feeding posture;a driver that outputs a drive force for changing the posture of the supporting body to the retracting posture against a gravitational force;an electromagnetic clutch capable of changing a state between an engaged state in which a drive force output from the driver is transmitted to the supporting body and a disengaged state in which the drive force is not transmitted to the supporting body; anda retraction controller that performs a retraction holding process for switching the supporting body to the retracting posture;wherein the retraction holding process is a process for stopping the output of a ...

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20-06-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130154180A1
Принадлежит:

An image forming apparatus includes a sheet cassette, a sheet feed roller, and a separating blade. An image forming section and a sheet conveying path for conveying a sheet to the image forming section are placed in a position within the width of a cassette body defined in a sheet feeding direction and above the cassette. The tip of the separating blade is placed in a portion of stacked sheets accommodated in the cassette between a front end portion and a rear end portion of the cassette. The sheet feed roller is placed in a position between the front end portion and the rear end portion of the cassette and apart from the tip of the separating blade toward the rear end portion. 1. An image forming apparatus comprising:a sheet cassette configured to accommodate stacked sheets;a separating member configured to separate an uppermost sheet from the stacked sheets accommodated in the sheet cassette;a sheet feed roller configured to feed the uppermost sheet from the stacked sheets accommodated in the sheet cassette;an image forming section configured to form an image on the sheet fed from the sheet cassette; anda sheet conveying path placed between the sheet cassette and the image forming section,wherein the image forming section and the sheet conveying path are placed in a position within a width of the sheet cassette defined between a front end and a rear end of the cassette in a sheet feeding direction and above the sheet cassette,the separating member has a tip to be placed to contact with a portion of the stacked sheets accommodated in the sheet cassette between the front end and the rear end of the cassette, andthe sheet feed roller is placed in a position between the front end and the rear end of the sheet cassette and apart from the tip of the separating member toward the rear end of the sheet cassette.2. The image forming apparatus according to claim 1 , further including a sheet feed roller controller configured to control the sheet feed roller to rotate ...

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27-06-2013 дата публикации

SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS

Номер: US20130161902A1
Автор: Onodera Shinichi
Принадлежит: CANON KABUSHIKI KAISHA

A sheet conveyance apparatus includes a sheet conveyance path provided in an apparatus main body and configured to convey a sheet, a jamming handling cover configured to be openable and closable and to expose the sheet conveyance path to an exterior by being opened, a unit configured to be able to be drawn out of the apparatus main body, a lever member provided in the sheet conveyance path and configured to rotate by contacting the sheet passing through the sheet conveyance path, and a stopper member configured to move to a restriction position to restrict the drawing-out of the unit, in conjunction with the rotation of the lever member. 1. A sheet conveyance apparatus comprising:a sheet conveyance path provided in an apparatus main body and configured to convey a sheet;a jamming handling cover configured to be openable and closable and to expose the sheet conveyance path to an exterior by being opened;a unit configured to be able to be drawn out of the apparatus main body;a lever member provided in the sheet conveyance path and configured to rotate by contacting the sheet passing through the sheet conveyance path; anda stopper member configured to move to a restriction position to restrict the drawing-out of the unit, in conjunction with the rotation of the lever member.2. The sheet conveyance apparatus according to claim 1 , wherein the unit is configured to be able to be drawn out in a direction crossing a sheet conveyance direction.3. The sheet conveyance apparatus according to claim 1 , wherein the unit includes a feeding cassette configured to store the sheet claim 1 , andwherein the lever member is provided in a conveyance path configured to convey the sheet fed from the feeding cassette.4. The sheet conveyance apparatus according to claim 3 , wherein the feeding cassette includes a latch lever rotatably supported by a shaft claim 3 ,wherein the latch lever is configured to engage a positioning member provided in the apparatus main body to lock the feeding ...

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04-07-2013 дата публикации

PRINTING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM STORING PROGRAM

Номер: US20130168915A1
Автор: Saito Megumi
Принадлежит: CANON KABUSHIKI KAISHA

A printing apparatus capable of connecting a post-processing apparatus includes a printing unit configured to convey an envelope so that the long edge of the envelope can become a leading edge in conveyance direction and print an image on the envelope. When the post-processing apparatus is connected, the printing apparatus restricts from conveying the envelope so that the long edge of the envelope becomes the leading edge in conveyance direction for printing the image on the envelop. 1. A printing apparatus capable of connecting a post-processing apparatus , comprising:a printing unit configured to convey an envelope so that a long edge of the envelope becomes a leading edge in conveyance direction or so that a short edge of the envelope becomes the leading edge in the conveyance direction and to print an image on the envelope; anda restriction unit configured to, in a case where the post-processing apparatus is connected, restrict from conveying, so that the long edge of the envelope becomes the leading edge in conveyance direction for printing the image on the envelop, the envelope.2. The apparatus according to claim 1 , wherein in a case where the post-processing apparatus is connected claim 1 , said printing unit conveys the envelope so that a short edge of the envelope becomes the leading edge in conveyance direction.3. The apparatus according to claim 1 , further comprising a selection unit configured to select a paper storage unit which stores an envelope to be used in printing claim 1 , from a plurality of paper storage units based on a designated envelope standard size claim 1 ,wherein said printing unit prints the image on an envelope fed from the paper storage unit selected by said selection unit.4. The apparatus according to claim 1 , further comprising an instruction receiving unit for receiving an instruction indicating claim 1 , on an operation screen claim 1 , whether to convey the envelope so that the long edge of the envelope becomes the leading ...

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04-07-2013 дата публикации

Modular Web Roller Assembly

Номер: US20130169711A1
Принадлежит: XEROX CORPORATION

A modular roll bar assembly for use in a continuous web imaging device includes a plurality of roll bars, a support frame configured to operatively support the plurality of roll bars such that the plurality of roll bars define a web path having a non-linear shape with an entrance end and an exit end, the entrance end being configured to receive a substantially continuous web of substrate material, the plurality of roll bars being configured to guide the continuous web past the exit end, and a temperature control system having a source of thermally controlled air that is configured to supply air at a predetermined temperature and velocity, and a plenum positioned in the support frame that is configured to guide the thermally controlled air from the source to the plurality of roll bars to heat or cool the plurality of roll bars to a predetermined temperature. 1. A modular roll bar assembly for use in a continuous web imaging device , the assembly comprising:a plurality of roll bars;a support frame configured to operatively support the plurality of roll bars such that the plurality of roll bars define a web path having a non-linear shape with an entrance end and an exit end, the entrance end being configured to receive a substantially continuous web of substrate material, the plurality of roll bars being configured to guide the continuous web past the exit end; anda temperature control system having a source of thermally controlled air that is configured to supply air at a predetermined temperature and velocity, and a plenum positioned in the support frame that is configured to guide the thermally controlled air from the source to the plurality of roll bars to heat or cool the plurality of roll bars to a predetermined temperature.2. The modular roll bar assembly of further comprising:a web temperature sensor configured to detect a temperature of the continuous web; anda controller operatively coupled to the web temperature sensor and the source, the controller being ...

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04-07-2013 дата публикации

PRINTER HAVING FIXED VACUUM PLATEN AND MOVING BELT ASSEMBLY

Номер: US20130169726A1
Принадлежит: ZAMTEC LIMITED

A printer includes: a fixed printhead assembly defining a print zone; a drive roller for feeding media along a media path and into the print zone, the drive roller being positioned upstream of the print zone; a fixed vacuum platen for receiving the media from the drive roller, the fixed vacuum platen being positioned in the print zone opposite the fixed printhead assembly; and a moving belt assembly positioned downstream of the print zone for receiving the media from the fixed vacuum platen. 1. A printer comprising:a fixed printhead assembly defining a print zone;a drive roller for feeding media along a media path and into the print zone, the drive roller being positioned upstream of the print zone;a fixed vacuum platen for receiving the media from the drive roller, the fixed vacuum platen being positioned in the print zone opposite the fixed printhead assembly; anda moving belt assembly positioned downstream of the print zone for receiving the media from the fixed vacuum platen.2. The printer of claim 1 , wherein the moving belt assembly comprises a plurality of moving endless belts and at least one vacuum chamber for drawing the media onto an upper surface of the belts.3. The printer of claim 1 , wherein the moving belt assembly is a modular assembly comprised of a plurality of moving belt modules and a plurality of stationary vacuum chamber modules disposed in an alternating arrangement such that the moving belt modules are spaced apart across the media path.4. The printer of claim 3 , wherein the moving belt modules and stationary vacuum chamber modules each have sidewall openings defined therein claim 3 , such that a common vacuum chamber extends through all the modules in the moving belt assembly.5. The printer of claim 3 , wherein each moving belt module comprises at least one endless belt tensioned between a drive pulley and an idler pulley claim 3 , and wherein each drive pulley of the moving belt assembly is mounted on a common drive shaft for rotation ...

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11-07-2013 дата публикации

Transported material transporting device and image processing apparatus

Номер: US20130175754A1
Принадлежит: Seiko Epson Corp

A transported material transporting device including: a power transmission switching mechanism configured to switch the transmission of the power between the intermediate gear and the cam drive gear between a transmitted state and a blocked state; a detection lever provided in the reversing path and configured to detect the presence or absence of the material to be transported which enters the reversing path; and a blocked-state locking mechanism configured to lock the blocked state of the power transmission switching mechanism when the discharging roller is in the released state, wherein the locked state of the blocked-state locking mechanism is released and the power transmission switching mechanism is switched from the blocked state to the transmitted state upon detection of the position of the trailing end of the material to be transported entering the reversing path by the detection lever.

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18-07-2013 дата публикации

PRINTING SYSTEM WITH SHEET CONVEYING DEVICE

Номер: US20130181389A1
Автор: CLEVERS Ernest J. J.
Принадлежит: OCE-TECHNOLOGIES B.V.

A printing system includes a marking engine for applying a marking substance onto a sheet and a sheet conveying device. The sheet conveying device includes a belt arranged to carry sheets from an upstream end to a downstream end of a transport path, the belt having an array of perforations; an array of suction nozzles arranged below the belt for sucking-in ambient air through the perforations of the belt; and at least one blow nozzle arranged at the downstream end of the transport path for blowing out a gas through the perforations of the belt. The conveying device further includes an array of anti-friction blow nozzles interleaved with the array of suction nozzles and connected to a blower for blowing-out a gas towards the bottom surface of the belt during the traverse of the sheet along the marking engine. 1. A printing system , comprising:a marking engine for applying a marking substance onto a sheet; and a belt arranged to carry sheets from an upstream end to a downstream end of a transport path, the belt having at least two arrays of perforations;', 'an array of suction nozzles arranged below the belt for sucking-in ambient air through the perforations of the belt, wherein the array of suction nozzles is aligned with one of the at least two arrays of perforations;', 'at least one blow nozzle arranged at the downstream end of the transport path for blowing out a gas through the perforations of the belt; and', 'an array of anti-friction blow nozzles interleaved with the array of suction nozzles and connected to a blower for blowing-out a gas towards the bottom surface of the belt during the traverse of the sheets along the marking engine., 'a sheet conveying device comprising2. The printing system according to claim 1 , wherein the array of anti-friction blow nozzles is aligned with a gap between two adjacent arrays of perforations.3. The printing system according to claim 1 , wherein the downstream end of the transport path is defined by a deflection roller ...

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18-07-2013 дата публикации

MEDIUM FEEDING DEVICE AND RECORDING APPARATUS

Номер: US20130181391A1
Автор: SHIOHARA Hiroshi
Принадлежит: SEIKO EPSON CORPORATION

A medium feeding device includes a first feeding unit feeds the medium to be fed to a downstream side of a feeding direction. A second feeding unit then feeds the medium to a upstream side and a downstream side on the basis of a feeding direction of the first feeding unit. A friction member is positioned opposite to the first feeding unit. A displacement member converts between a first state in which the displacement member protrudes upwardly in a stacked direction with respect to the friction member and a second state in which the displacement member retracts downwardly. The displacement member is set as the second state when one remaining sheet of the medium is fed to the downstream side by the first feeding unit, and the displacement member is set as the first state when a trailing end of the one remaining sheet passes through the friction member. 1. A medium feeding device comprising:a placing plane on which a medium to be fed is placed;a first feeding unit which feeds the medium to be fed which is placed on the placing plane to a downstream side of a feeding direction;a second feeding unit which feeds the medium fed by the first feeding unit to a upstream side and a downstream side of the feeding direction on the basis of a feeding direction of the first feeding unit;a friction member which is installed at a position of the placing plane which is opposite to the first feeding unit; anda displacement member which is able to be converted between a first state in which the displacement member protrudes upwardly in a stacked direction of the medium to be fed with respect to the friction member and a second state in which the displacement member retracts downwardly in the stacked direction with respect to the friction member,wherein the displacement member is set as the second state when one remaining sheet of medium to be fed placed on the placing plane is fed to the downstream side of the feeding direction by the first feeding unit, andthe displacement member is ...

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18-07-2013 дата публикации

METHOD FOR FEEDING SHEETS TO A PRINTING TECHNOLOGY MACHINE

Номер: US20130181395A1
Принадлежит: HEIDELBERGER DRUCKMASCHINEN AG

A method for feeding sheets to a printing technology machine improves reliability of feeding sheets and reduces an acceleration time from a base speed to a production speed. The sheets are conveyed onto a feed table in shingled formation by a first drive and are individually and successively conveyed from the feed table to a first processing station of the machine by a second drive. The sheets are conveyed onto the feed table before an acceleration of the second drive to production speed is completed and the first drive is accelerated to the production speed when the processing station has reached the production speed. 1. A method for feeding sheets to a printing technology machine , the method comprising the following steps:conveying the sheets in a conveying direction onto a feed table in shingled formation using a first drive;conveying the sheets individually and successively from the feed table to a first processing station of the machine using a second drive; and conveying the sheets to the feed table before the second drive has reached the production speed;', 'stopping the first drive as soon as the sheets on the feed table assume a predefined position in the conveying direction and are at a predefined distance from each other; and', 'then accelerating the first drive to the production speed after the processing station has reached the production speed., 'accelerating the drives from a base speed to a production speed as follows2. The method according to claim 1 , which further comprises setting a speed at which the sheets are conveyed onto the feed table as a function of sheet thickness.3. The method according to claim 1 , which further comprises conveying the sheets onto the feed table at a speed being lower than a current start-up speed.4. The method according to claim 1 , which further comprises providing mechanically decoupled transmissions with individually controllable motors as the drives.5. The method according to claim 1 , which further comprises ...

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25-07-2013 дата публикации

PRINTING APPARATUS AND PROGRAM

Номер: US20130187325A1
Автор: OHMIYA Takashi
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

There is provided a printing apparatus including a sheet accommodation device including at least one sheet accommodation section which accommodates a sheet before printing, a printing unit which prints an image on a sheet based on print data stored in a storage area, a discharged sheet accommodation device including at least one discharged sheet accommodation section which accommodates the printed sheet, a control device which selects a combination of a sheet accommodation section and a discharged sheet accommodation section such that a storage device completes storing print data into the storage area by a conveyance starting time of a sheet to be printed based on the print data, and which control a conveyance device to feed the sheet to be printed based on the print data from the sheet accommodation section to discharge the sheet to the discharged sheet accommodation section of the selected combination. 1. A printing apparatus comprising:a storage device including a storage area configured to store therein print data of a predetermined number of pages;a sheet accommodation device including at least one sheet accommodation section configured to accommodate therein a plurality of sheets before printing;a printing device configured to print an image on a sheet based on the print data stored in the storage area;a discharged sheet accommodation device including at least one discharged sheet accommodation section configured to accommodate the sheet on which the image has been printed by the printing device;a conveyance device configured to convey a sheet from the sheet accommodation device to the discharged sheet accommodation device via the printing device; and select an execution combination of a usable one of the at least one sheet accommodation section and a usable one of the at least one discharged sheet accommodation section such that the storage device completes storing print data into the storage area by a conveyance starting time of a sheet to be printed based ...

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25-07-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130187329A1
Принадлежит: CANON KABUSHIKI KAISHA

To simplify control of a sheet feeing/conveying system while preventing a step-out phenomenon, saving power, and reducing cost, provided is an image forming apparatus which detects a load angle of a motor (M) associated with conveying of an n-th sheet (P) (where n is a natural number equal to or larger than 1). In accordance with the detected load angle, current values for motors (M and M) associated with conveying of the n-th sheet (P), a current value for a motor (M) associated with feeding of sheets (P) following the n-th sheet, and a current value for a motor (M) associated with conveying of the sheets (P) following the n-th sheet are set. Such control is executed when power is turned ON or the like. 1. An image forming apparatus for forming an image on a sheet material comprising:a conveying unit having a plurality of conveying paths, configured to convey the sheet material;a plurality of first motors configured to drive a plurality of first rollers, each of which is disposed on a respective conveying path of the plurality of conveying paths;a second motor configured to drive a second roller disposed downstream of a merging point of the plurality of conveying paths;a detection unit configured to detect a load angle of the second motor; and{'b': '1', 'a setting unit configured to set, in accordance with the load angle of the second motor detected by the detection unit at a time of conveying, an n-th sheet material, where n is a natural number equal to or larger than , current values for the plurality of first motors and the second motor at a time of conveying sheet material following the n-th sheet material.'}2. An image forming apparatus according to claim 1 , further comprising a third motor configured to drive a third roller disposed downstream of the second roller claim 1 ,wherein, in accordance with the load angle of the second motor detected by the detection unit at the time of conveying the n-th sheet material, the setting unit sets a current value for ...

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25-07-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130187332A1
Принадлежит: CANON KABUSHIKI KAISHA

To simplify control of a sheet feeding/conveying system while preventing a step-out phenomenon and saving power, provided is an image forming apparatus which detects a load angle of a first motor (M) for conveying an n-th sheet (P) (where n is a natural number equal to or larger than 1). In accordance with the detected load angle, a current value for the first motor (M) for conveying sheets (P) following the n-th sheet and a current value for a second motor (M) for conveying the n-th and subsequent sheets (P) are set. Such control is executed when power is turned ON or the like. 1. An image forming apparatus , comprising:a first motor configured to drive a first roller disposed in a conveying path,a second motor configured to drive a second roller disposed downstream of the first roller in the conveying path,a control unit configured to control driving of the first motor and the second motor; anda detection unit configured to detect a load angle of the first motor,wherein the control unit sets a current value for the first motor for conveying an n-th sheet material, where n is a natural number greater than or equal to 1, to a predetermined current value, and sets, in accordance with the load angle of the first motor detected by the detection unit in conveyance of the n-th sheet material, a current value for the first motor for conveying sheet materials following the n-th sheet material and a current value for the second motor for conveying the n-th sheet material and subsequent sheet materials.2. An image forming apparatus according to claim 1 , wherein the control unit sets a current value for the first motor for conveying sheet materials up to an m-th sheet material claim 1 , where m is a natural number such that m>n claim 1 , to the predetermined current value claim 1 , in place of the current value for the first motor for conveying the n-th sheet material claim 1 , in accordance with the load angle of the first motor detected by the detection unit in conveyance ...

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01-08-2013 дата публикации

SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS

Номер: US20130193633A1
Принадлежит: CANON KABUSHIKI KAISHA

A sheet feeding device includes drawing and conveying a sheet, applying negative pressure for sheet suction via a suction opening, moving a shutter member between a closing position where the suction opening in an upstream side in a sheet feeding direction is partially closed and an open position where the suction opening is opened, and controlling the shutter member to follow a preceding sheet that is drawn onto the suction conveyance member to move to the downstream side in the feeding direction to close the suction opening, and return to an open position at a predetermined timing to draw the sheets onto the suction conveyance member in a state where an upstream edge of the preceding sheet in the feeding direction and a downstream edge of the subsequent sheet in the feeding direction are overlaid by a predetermined amount. 1. A sheet feeding device , comprising:an elevatable tray that supports a sheet;an air blowing unit that blows air toward the sheet supported by the tray to float the sheet;a suction conveyance member that draws and conveys the sheet floated by driving the air blowing unit;a negative pressure generation part that has a suction opening that applies a negative pressure for sheet suction to the suction conveyance member;a shutter member that moves between a closing position where the suction opening in an upstream side in a sheet feeding direction is partially closed and an open position where the suction opening is opened; anda controlling unit that is, in a driving state of the negative pressure generation part, configured to control the shutter member to follow a preceding sheet that is drawn onto the suction conveyance member, to move to a downstream side in the feeding direction to close the suction opening, and return to the open position at a predetermined timing to draw the sheets onto the suction conveyance member in a state where an upstream edge of the preceding sheet in the feeding direction and a downstream edge of a subsequent sheet ...

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01-08-2013 дата публикации

MULTI-FUNCTION PERIPHERAL

Номер: US20130193634A1
Автор: Huang Chung-Liang
Принадлежит:

A multi-function peripheral having an automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space. 1. A multi-function peripheral , comprising:a body, having a paper inlet and a paper outlet, a paper is adapted to be transmitted into the body via the paper inlet and transmitted out of the body via the paper outlet;a motor, disposed in the body;an electromagnetic valve, disposed in the body; a limiting structure, pivoted to the body and connected to the electromagnetic valve, the electromagnetic valve driving the limiting structure to move between a first position and a second position, the limiting structure having a limiting space;', 'a swinging member, pivoted to the body;', 'a gear set, disposed on the swinging member and connected to the motor, the motor driving the gear set so as to drive the swinging member to move between a third position and a fourth position;', 'a blocking member, having a first end and a second end opposing thereto, the first end connected to the swinging member so that the blocking member moves along with the swinging member, the second end extending from the swinging member to the limiting structure, wherein a moving path of the second end and a moving ...

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08-08-2013 дата публикации

SHEET CONVEYING DEVICE

Номер: US20130200563A1
Автор: CLEVERS Ernest J.J.
Принадлежит: OCE TECHNOLOGIES B.V.

A sheet conveying device includes a belt arranged to carry sheets from an upstream end to a downstream end of a transport path, the belt having an array of perforations; and an array of suction nozzles arranged below the belt for sucking-in ambient air through the perforations of the belt. At least one blow nozzle is arranged at the downstream end of the transport path for blowing out a gas through the perforations of the belt. The downstream end of the transport path is defined by a deflection roller. A plurality of blow nozzles are formed by circumferential grooves in the peripheral surface of the deflection roller. 1. A sheet conveying device , comprising:a belt arranged to carry sheets from an upstream end to a downstream end of a transport path, the belt having at least one array of perforations; andat least one array of suction nozzles arranged below the belt for sucking-in ambient air through the perforations of the belt;at least one blow nozzle arranged at the downstream end of the transport path for blowing out a gas through the perforations of the belt,wherein the downstream end of the transport path is defined by a deflection roller, and wherein a plurality of blow nozzles is formed by circumferential grooves in the peripheral surface of the deflection roller, each of the circumferential grooves being aligned with one of the at least one array of suction nozzles.2. The conveying device according to claim 1 , wherein at least one blow nozzle is arranged immediately upstream of the deflection roller.3. The conveying device according to claim 2 , wherein the at least one blow nozzle arranged immediately upstream of the deflection roller is configured as a slot that extends across the entire width of the transport path.4. The conveying device according to claim 2 , wherein the at least one blow nozzle arranged immediately upstream of the deflection roller and the suction nozzles are formed in a common nozzle body.5. The conveying device according to claim 1 , ...

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08-08-2013 дата публикации

SHEET THICKNESS DETECTING DEVICE, FEEDING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20130200565A1
Принадлежит:

A sheet thickness detecting device for detecting a thickness of a sheet includes a fixed roller rotatably supported by a shaft so that the fixed roller faces the sheet; a movable roller rotatably provided so that the movable roller and the fixed roller sandwich and feed the sheet, and configured to be displaced in accordance with the thickness of the sandwiched sheet; a swing member rotatably supporting the movable roller and including a shaft so that the swing member is swung around the shaft, wherein the swing member further includes a detection target part formed in a manner that a distance between the detection target part and the shaft is greater than that between a position where the movable roller is supported by the swing member and the shaft; and a detecting unit detecting the displacement amount of the detection target part of the swing member. 1. A sheet thickness detecting device for detecting a thickness of a sheet passing through a conveying path , comprising:a fixed roller rotatably supported by a shaft so that the fixed roller faces one side of the sheet passing through the conveying path;a movable roller rotatably provided so that the movable roller and the fixed roller sandwich and feed the sheet, and configured to be displaced in accordance with the thickness of the sandwiched sheet;a swing member configured to rotatably support the movable roller and including a shaft so that the swing member is swung around the shaft, wherein the swing member further includes a detection target part formed in a manner that a distance between the detection target part and the shaft is greater than a distance between a position where the movable roller is supported by the swing member and the shaft; anda detecting unit configured to detect the displacement amount of the detection target part of the swing member.2. The sheet thickness detecting device according to claim 1 , further comprising:a shaft roller including the shaft disposed on the upstream side of a ...

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08-08-2013 дата публикации

IMAGE FORMING APPARATUS AND ASSEMBLY SYSTEM OF IMAGE FORMING APPARATUS

Номер: US20130201267A1
Принадлежит: RICOH COMPANY, LTD.

An image forming apparatus includes a sheet feed conveying unit having an outlet for a recording medium on one side; at least one image forming unit having an inlet for the recording medium on one side and an outlet for the recording medium on the other side; and a sheet eject conveying unit having an inlet for the recording medium on one side, wherein the sheet feed conveying unit, the image forming unit, and the sheet eject conveying unit are arranged along a conveying direction of the recording medium; the outlet of the sheet feed conveying unit matches the inlet of the image forming unit; the outlet of the image forming unit matches the inlet of the sheet eject conveying unit; and the sheet feed conveying unit, the image forming unit, and the sheet eject conveying unit are connected to each other in a separable manner. 120-. (canceled)21. An image forming apparatus comprising:a sheet feed conveying unit having an outlet for a recording medium on one side;a plurality of image forming units having an inlet for the recording medium on one side and an outlet for the recording medium on the other side; anda sheet eject conveying unit having an inlet for the recording medium on one side, wherein:the sheet feed conveying unit, the plurality of image forming units, and the sheet eject conveying unit are arranged along a conveying direction of the recording medium;the outlet of the sheet feed conveying unit matches the inlet of the image forming unit at a most upstream side of a recording medium conveying direction;the outlet of the image forming unit at an upstream side of the recording medium conveying direction matches the inlet of the image forming unit at a downstream side of the recording medium conveying direction;the outlet of the image forming unit at a most downstream side of the recording medium conveying direction matches the inlet of the sheet eject conveying unit;the sheet feed conveying unit, the plurality of the image forming units, and the sheet eject ...

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15-08-2013 дата публикации

SHEET FEEDER AND IMAGE FORMING APPARATUS INCLUDING SAME

Номер: US20130207335A1
Принадлежит:

A sheet feeder stackable in multiple levels and attachable to an image forming apparatus. The sheet feeder includes a drive source, a drive transmission unit, a first drive coupling unit, a second drive coupling unit, a sheet feed roller, and a grip roller. During operation of multiple sheet feeders stacked in the multiple levels, the drive transmission unit and the first drive coupling unit, both provided to a given sheet feeder of the multiple sheet feeders, are coupled to each other, and the first drive coupling unit of the given sheet feeder is coupled to the grip roller of an adjacent sheet feeder disposed immediately below the given sheet feeder to drive the grip roller of each of the multiple sheet feeders substantially in synchrony. 1. A sheet feeder stackable in multiple levels and attachable to an image forming apparatus , comprising:a drive source;a drive transmission unit;a first drive coupling unit connected to the drive source via the drive transmission unit;a second drive coupling unit connected to the drive source via the drive transmission unit and the first drive coupling unit;a sheet feed roller coaxial with the second drive coupling unit to feed a recording medium from the sheet feeder, the sheet feed roller being driven by a drive force of the drive source transmitted to the second drive coupling unit via the drive transmission unit and the first drive coupling unit; anda grip roller provided downstream from the sheet feed roller in a sheet feeding direction, the grip roller being driven by a drive force of the drive source transmitted to the first drive coupling unit via the drive transmission unit,during operation of multiple sheet feeders stacked in the multiple levels, the drive transmission unit coupled to the first drive coupling unit and provided to a given sheet feeder of the multiple sheet feeders,the first drive coupling unit of the given sheet feeder coupled to the grip roller of an adjacent sheet feeder disposed immediately below the ...

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15-08-2013 дата публикации

Sheet Feed Timing

Номер: US20130207340A1
Автор: Fukusada Yuki
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An apparatus may be configured to: upon feeding a sheet by a roller, wait for a sheet waiting interval before feeding a next sheet by the roller, determine, using a sensor downstream from the roller in a sheet feeding path, a sensed sheet interval between at least two of the fed sheets; determine whether the sensed sheet interval is equal to or greater than a reference value; and in response to determining that the sensed sheet interval is equal to or greater than the reference value, reduce the sheet feed waiting interval for subsequent feeding of at least one sheet. 1. An apparatus , configured to:upon feeding a sheet by a roller, wait for a sheet feed waiting interval before feeding a next sheet by the roller;determine, using a sensor downstream from the roller in a sheet feeding path, a sensed sheet interval between at least two of the fed sheets;determine whether the sensed sheet interval is equal to or greater than a reference value; andin response to determining that the sensed sheet interval is equal to or greater than the reference value, reduce the sheet feed waiting interval for subsequent feeding of at least one sheet.2. The apparatus according to claim 1 , wherein the apparatus is configured to reset the sheet feed waiting interval to an initial value after the subsequent feeding of at least one sheet is finished.3. The apparatus of claim 1 , further configured to:determine the sensed sheet interval using a plurality of sensed intervals between successive fed sheets.4. The apparatus according to claim 3 , further configured to determine the sensed sheet interval based on the plurality of sensed sheet intervals after discarding a maximum and a minimum sheet interval.5. The apparatus according to claim 3 , further configured to determine the sensed sheet interval claim 3 , every time the sensor detects a second sheet following a first sheet.6. The apparatus according to claim 3 , wherein the apparatus is configured to reset the sheet feed waiting interval ...

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15-08-2013 дата публикации

AUTO DOCUMENT FEEDER AND A DOCUMENT READER WITH THE AUTO DOCUMENT FEEDER

Номер: US20130208326A1
Принадлежит: MURATA MACHINERY, LTD.

An auto document feeder includes a lead path, a first reverse path, a second reverse path, and a both surfaces eject path. The lead path guides a document from a left side to a right side of a read position. The first and second reverse paths are connected to the lead path, and reverse the document to guide the document from the right side to the left side of the read position. A both surfaces eject path is connected to the first and second reverse paths and guides the document whose image information of a second surface has been read to eject further to the right side than the read position. A shared curve path shared by the lead path and the both surfaces eject path includes a portion between the read position and a portion in which a lead curve path protrudes the most. 1. An auto document feeder comprising:a lead path arranged to guide a document supplied from a first side of a read position to a second side thereof so as to read a first surface of the document;a reverse path connected to the lead path and arranged to reverse the document whose image information of the first surface has been read, and to guide the document from the second side of the read position to the first side thereof so as to read a second surface of the document; andan eject path connected to the reverse path and arranged to guide the document whose image information of the second surface has been read, so as to eject the document further to the second side than the read position; wherein a first reverse path arranged to guide the document when a length of the document is relatively short; and', 'a second reverse path arranged to guide the document when the length of the document is relatively long;, 'the reverse path includesthe first reverse path includes a first mid-reverse path, which protrudes to the second side and is arranged further to the second side than the read position; andthe second reverse path includes a second mid-reverse path, which protrudes to the second side beyond the ...

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29-08-2013 дата публикации

SHEET FEEDING UNIT AND IMAGE FORMING APPARATUS

Номер: US20130221603A1
Автор: Yamamoto Daisuke
Принадлежит: CANON KABUSHIKI KAISHA

A feeding roller, a drive motor configured to drive the feeding roller, a control unit configured to perform one rotation control on the feeding roller, a sheet feeding path curved immediately after the feeding roller, a conveying roller pair provided in the sheet feeding path, and being set to a sheet conveyance speed higher than that of the feeding roller so as to eliminate a loop formed when a sheet passes through the sheet feeding path during one rotation control of the feeding roller; and a ratchet mechanism configured to stop the driving force from the drive motor and cause the feeding roller to be rotated by the sheet conveyed by the conveying roller pair when the feeding roller is pulled by the sheet being conveyed by the conveying roller pair in the course of the one rotation control of the feeding roller are provided. 1. A sheet feeding unit comprising:a feeding roller configured to feed a sheet;a drive motor configured to drive the feeding roller;a driving force transmission mechanism configured to transmit a driving force from the drive motor to the feeding roller;a one rotation control mechanism configured to control the rotation of the feeding roller;a curved sheet feeding path downstream of the feeding roller in the sheet feeding direction;a conveying roller provided in the sheet feeding path set to a sheet conveyance speed greater than that of the feeding roller to eliminate a loop formed when the sheet fed by the feeding roller is passing through the sheet feeding path during the one rotation control of the feeding roller, and configured to receive the sheet fed from the feeding roller and conveying the received sheet; anda one-way rotation control mechanism configured to stop the driving force and cause the feeding roller to be rotated by the sheet conveyed by the conveying roller when the feeding roller is pulled by the sheet being conveyed by the conveying roller in the course of the one rotation control of the feeding roller.2. The sheet feeding ...

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29-08-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130221612A1
Автор: Aoki Daisuke, Harada Yuko
Принадлежит: CANON KABUSHIKI KAISHA

A supporting portion is provided to project from an upper surface of a side regulating member which is provided in a sheet feeding cassette which is detachably attached to a color laser beam printer body, and which regulates a position of a sheet in a width direction orthogonal to a sheet feeding direction, and this supporting portion regulates downward deformation of a conveyance guiding member which is positioned above the sheet feeding cassette and which forms a sheet conveying path R which guides the sheet. 1. An image forming apparatus comprising;a sheet storage portion which is detachably attached to an apparatus body;a guiding member which is positioned above the sheet storage portion attached to the apparatus body and which forms a sheet conveying path which guides a sheet; anda regulating portion which is provided in the sheet storage portion, and which regulates a position of the sheet in a width direction orthogonal to a sheet feeding direction, and abuts on the guiding member and regulates downward deformation of the guiding member.2. The image forming apparatus according to claim 1 , wherein the regulating portion abuts on a bottom surface of the guiding member when the sheet storage portion is attached to the apparatus body.3. The image forming apparatus according to claim 1 , wherein the regulating portion abuts on a bottom surface of the guiding member when the guiding member deforms downward a predetermined amount.4. The image forming apparatus according to claim 1 , wherein a convex portion which abuts on the regulating portion and extends in the width direction is provided on a bottom surface of the guiding member.5. The image forming apparatus according to claim 1 , wherein a convex portion which abuts on the regulating portion is provided in a center portion of a bottom surface of the guiding member in the width direction.6. The image forming apparatus according to claim 1 , wherein the regulating portion includes a regulating member which ...

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05-09-2013 дата публикации

IMAGE RECORDING DEVICE

Номер: US20130228966A1
Автор: KAWAMATA Noriyuki
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A first frame includes a pair of first roller-receiving portions which rotatably supports a convey roller. A second frame is attached to the first frame and includes an extending portion which extends beyond one of the first roller-receiving portions toward one side of the convey roller in its axial direction. A third frame includes a base portion, and a first side wall and a second side wall which are opposite to each other. The first and second side walls are attached to the extending portion so as to he perpendicular to the axial direction of the convey roller. The first side wall is disposed more toward the one side of the convey roller in the axial direction than the second side wall and includes a portion which receives a shaft of a motor for the convey roller, and a second roller-receiving portion which rotatably supports the convey roller. 1. An image recording device comprising:a motor;a convey roller to which a driving force is transmitted from the motor and which is configured to convey a sheet in a conveying direction;a recording unit disposed downstream of the convey roller in the conveying direction and configured to record an image on the sheet;a first frame comprising a pair of first roller-receiving portions which rotatably supports the convey roller;a second frame attached to the first frame and comprising an extending portion which extends beyond one of the pair of the first roller-receiving portions toward one side of the convey roller in an axial direction of the convey roller; anda third frame attached to the extending portion of the second frame and comprising a base portion, a first side wall continuing from the base portion, and a second side wall continuing from the base portion and opposite to the first side wall,wherein the first side wall and the second side wall are attached to the extending portion of the second frame such that the first side wall and the second side wall are perpendicular to the axial direction of the convey roller, ...

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05-09-2013 дата публикации

MEDIUM CONVEYING APPARATUS, IMAGE FORMING APPARATUS, AND MEDIUM CONVEYING SYSTEM

Номер: US20130228968A1
Принадлежит: RICOH COMPANY, LTD.

A medium conveying apparatus includes a conveying unit including two rotating members for conveying a medium therebetween, a driving unit configured to drive a rotation of at least one of the rotating members, a parameter calculating unit configured to calculate a parameter of the driving unit, and a medium detecting unit configured to detect the medium conveyed by the rotating members by comparing the parameter calculated by the parameter calculating unit when the medium is conveyed by the rotating members and a reference parameter calculated by the parameter calculating unit when the medium is not conveyed by the rotating members. 1. A medium conveying apparatus comprising:a conveying unit including two rotating members for conveying a medium therebetween;a driving unit configured to drive a rotation of at least one of the rotating members;a parameter calculating unit configured to calculate a parameter of the driving unit; anda medium detecting unit configured to detect the medium conveyed by the rotating members by comparing the parameter calculated by the parameter calculating unit when the medium is conveyed by the rotating members and a reference parameter calculated by the parameter calculating unit when the medium is not conveyed by the rotating members.2. The medium conveying apparatus as claimed in claim 1 ,wherein the parameter calculated by the parameter calculating unit includes a torque of the driving unit,wherein the reference parameter calculated by the parameter calculating unit includes a reference torque.3. The medium conveying apparatus as claimed in claim 2 , further comprising:a time estimating unit configured to estimate when the medium passes an area between the rotating members; anda conveying status detecting unit configured to determine a conveying status of the medium;wherein the conveying status detecting unit is configured to determine that the conveying status is a failure when the medium detecting unit does not detect the medium at ...

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19-09-2013 дата публикации

PILLOW BLOCK FOR FEED ROLLER, AND FEEDING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE PROCESSING APPARATUS USING THE PILLOW BLOCK

Номер: US20130241142A1
Автор: Hashiuchi Kohji
Принадлежит: RICOH COMPANY, LTD.

A pillow block supporting a feed roller includes a pillow block main body; a wedge body adjusting a height position of the pillow block main body; and a bracket adjustably installing the pillow block main body in a sheet feeding direction on a mounting surface. Further, the pillow block main body includes a reception part to support the feed roller, a concave part though which the wedge body is inserted, and the bracket is temporarily fixed to the mounting surface. Further, the wedge body pushes up the height position of the pillow block main body upon being inserted into the concave part to determine the position of the reception part so that the reception part supports the feed roller from below. 1. A pillow block to be installed to fit with a feed roller , which feeds a recording medium , to support the feed roller , the pillow block comprising:a pillow block main body;a wedge body configured to adjust a height position of the pillow block main body; anda bracket configured to adjustably install the pillow block main body in a recording medium feeding direction on a mounting surface on which the pillow block is to be mounted,wherein the pillow block main body includes a reception part that is disposed on an upper part of the pillow block main body and is open on an upper side thereof so as to support the feed roller,wherein the pillow block main body further includes a concave part, so that the wedge body is inserted into the concave part,wherein the bracket is configured to be temporarily fixed to the mounting surface in a manner such that the position of the bracket in the recording medium feeding direction is adjustable, andwherein the wedge body is configured to push up the height position of the pillow block main body upon being inserted into the concave part to determine the position of the reception part so that the reception part supports the feed roller from below.2. The pillow block according to claim 1 ,wherein the concave part includes an inclined ...

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26-09-2013 дата публикации

SHEET CONVEYING DEVICE AND IMAGE RECORDING DEVICE

Номер: US20130249161A1
Автор: Uchino Yuta
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A first guide member and a second guide member define therebetween a first path. The second guide member and a third guide member define therebetween a second path. The second guide member pivots between a first position in which a first contact surface of a contact portion thereof is in contact with the first guide member, and a second position in which the first contact surface is separated from the first guide member. The third guide member pivots between a third position in which a third contact surface thereof is in contact with the second contact surface of the second guide member in the first position, and a fourth position in which the third contact surface is separated from the second guide member. The first, second, and third contact surfaces are disposed outer than the first path and the second path in a direction perpendicular to a sheet conveying direction. 1. A sheet conveying device comprising:a first guide member;a second guide member disposed facing the first guide member to define therebetween a first curved path along which a sheet is to be conveyed in a first conveying direction; anda third guide member disposed facing the second guide member to define therebetween a second curved path along which a sheet is to be conveyed in a second conveying direction,wherein the first guide member is opposite to the third guide member relative to the second guide member,wherein the second guide member comprises a contact portion comprising a first contact surface and a second contact surface and is configured to pivot between a first position in which the first contact surface is in contact with the first guide member, and a second position in which the first contact surface is separated from the first guide member,wherein the third guide member comprises a third contact surface and is configured to pivot between a third position in which the third contact surface is in contact with the second contact surface of the second guide member in the first position, ...

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26-09-2013 дата публикации

INFORMATION RECORDING DEVICE

Номер: US20130249164A1
Принадлежит:

Provided is an information recording device in which jam processing operation can be easily performed with simple operation when a recording medium such as a card is jammed in a conveyance passage. A card storing section and a medium conveyance passage for conveying a card to an image forming section are arranged in a housing at upper and lower sides and a passage open-close member for removing a card jammed at the image forming section is arranged therebetween. Then, electronic information recording means is incorporated in the passage open-close member and a medium conveyance path which conveys a card toward the electronic information recording means is arranged on a medium introduction passage for feeding a card from the card storing section to the medium conveyance passage. According to the above, a card jammed at the image forming section or the information recording section can be easily removed to the outside of the device by opening the card storing section. 1. An information recording device which records electronic information and image information on a recording medium , comprising:a housing;a medium storing section which stores a recording medium;an information recording section which records electronic information on a recording medium;an image forming section which forms image information on a recording medium;a medium introduction passage which introduces a recording medium from the medium storing section toward the information recording section;a medium conveyance passage which conveys the recording medium conveyed from the medium introduction passage to the image forming section; anda passage open-close member which is arranged at the medium conveyance passage for removing a recording medium jammed at the image forming section,wherein the medium storing section, the passage open-close member, and the image forming section are arranged in the housing in this order, andthe information recording section includes electronic information recording means ...

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03-10-2013 дата публикации

Sheet Conveying Device

Номер: US20130256970A1
Принадлежит: Brother Industries Ltd

A sheet conveying device includes: a main body; a cover; a first roller; and a second roller. The main body defines a conveying passage along which a sheet is conveyed. The cover is supported to the main body and movable between a closed position in which the cover covers the main body from above and an open position in which the cover is moved upward from the main body so as to be spaced away from the main body. The first roller is rotatably supported to the cover and configured to discharge the sheet from the conveying passage to an outside of the main body. The second roller is rotatably supported to the main body and disposed in confrontation with the first roller while interposing the conveying passage between the first roller and the second roller when the cover is at the closed position.

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03-10-2013 дата публикации

Image Forming Apparatus

Номер: US20130256971A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image forming apparatus includes a main body, a recording sheet receiving portion configured to receive a recording sheet, an image forming portion configured to form an image on the recording sheet, a particular feed roller configured to feed the recording sheet toward the image forming portion, and a holding frame configured to rotatably support the particular feed roller such that the particular feed roller is exposed toward the recording sheet receiving portion. The holding frame has a roller receiving portion configured to receive the particular feed roller therein and a replacement opening for exposing the particular feed roller toward an opposite side of the holding frame relative to the recording sheet receiving portion. The particular feed roller is configured to be attached to and removed from the holding frame via the replacement opening on the opposite side of the holding frame relative to the recording sheet receiving portion. 1. An image forming apparatus comprising:a main body;a recording sheet receiving portion configured to receive a recording sheet;an image forming portion disposed in the main body and configured to form an image on the recording sheet;a particular feed roller configured to rotate in contact with the recording sheet received on the recording sheet receiving portion to feed the recording sheet toward the image forming portion; anda holding frame configured to rotatably support the particular feed roller such that the particular feed roller is exposed toward the recording sheet receiving portion,wherein the holding frame has a roller receiving portion configured to receive the particular feed roller therein and a replacement opening for exposing the particular feed roller toward an opposite side of the holding frame relative to the recording sheet receiving portion, andwherein the particular feed roller is configured to be attached to and removed from the holding frame via the replacement opening on the opposite side of the ...

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03-10-2013 дата публикации

IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING SAME

Номер: US20130256973A1
Автор: YAMAGUCHI Kiyotaka
Принадлежит: KYOCERA Document Solutions Inc.

An image forming apparatus is provided that can efficiently reduce power consumption. The image forming apparatus includes a power supply portion that brings, into a power saving state, a paper feed device holding a sheet of a sheet size whose paper feed frequency does not reach a threshold value and a notification portion that provides a notification that a paper feed device holding the sheet of the sheet size whose paper feed frequency reaches the threshold value is encouraged to be the paper feed device that is closer to the print portion than the paper feed device holding the sheet of the sheet size whose paper feed frequency does not reach the threshold value. 1. An image forming apparatus comprising:a print portion that prints an image on a sheet;multi-stage paper feed devices that hold the sheet and feeds the sheet held to the print portion;a sheet size detection portion that detects a sheet size of the sheet held in each of the multi-stage paper feed devices;a storage portion that stores paper feed frequency data indicating a paper feed frequency to the print portion per sheet size;a power supply portion that performs, when the paper feed device holding the sheet of a sheet size whose paper feed frequency reaches a predetermined threshold value is the paper feed device, among the multi-stage paper feed devices, that is closer to the print portion than the paper feed device holding the sheet of a sheet size whose paper feed frequency does not reach the threshold value, among the multi-stage paper feed devices, normal power supply on the paper feed device holding the sheet of the sheet size whose paper feed frequency reaches the predetermined threshold value, and that limits, as compared with the normal power supply, power supply to the paper feed device holding the sheet of the sheet size whose paper feed frequency does not reach the threshold value so as to bring, into a power saving state, the paper feed device holding the sheet of the sheet size whose ...

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03-10-2013 дата публикации

Sheet Feeding Device

Номер: US20130256975A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

In a sheet feeding device, a main body includes a feeding unit configured to feed a sheet in a feeding direction to a conveying path. A cover is configured to pivot about a first axis relative to the main body between a closed position in which the cover closes the conveying path and an open position in which the cover exposes the conveying path. A plate is configured to pivot about a second axis which is parallel to the first axis and to contact and move away from the feeding unit. The second axis is closer to the cover than to the feeding unit in the feeding direction. In a state in which the cover is in the closed position, at least a part of the cover is positioned on an upper side of the plate so as to be contactable with the plate. 1. A sheet feeding device comprising:a main body comprising a feeding unit configured to feed a sheet in a feeding direction to a conveying path along which the sheet is conveyed;a cover configured to pivot about a first axis relative to the main body between a closed position in which the cover closes the conveying path and an open position in which the cover exposes the conveying path; anda plate configured to pivot about a second axis which is parallel to the first axis and to contact and move away from the feeding unit,wherein the second axis is closer to the cover than to the feeding unit in the feeding direction, andwherein in a state in which the cover is in the closed position, at least a part of the cover is positioned on an upper side of the plate so as to be contactable with the plate.2. The sheet feeding device according to claim 1 , wherein the plate extends toward a side opposite from the cover in the open position.3. The sheet feeding device according to claim 1 , wherein the plate is exposed to a mounting surface on which the sheet feeding device is mounted.4. The sheet feeding device according to claim 1 , wherein the at least a part of the cover comprises a first protrusion which claim 1 , in the state in which the ...

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03-10-2013 дата публикации

IMAGE RECORDING APPARATUS

Номер: US20130256976A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image recording apparatus, including: a drive source foratable forwardly and reversely; a first roller rotatable in a first direction by the forward rotation of the drive source to convey a conveyed medium and rotatable in a second direction reverse to the first direction by the reverse rotation of the drive source; a recording device; a second roller; a first power transmitter which transmits a first-direction driving power to the second roller and not to transmit a second-direction driving power to the second roller, wherein the first-direction driving power is a rotational driving power of the first roller rotating in the first direction, and the second-direction driving power is a rotational driving power of the first roller rotating in the second direction; and a second power transmitter which transmits the second-direction driving power to the second roller and not to transmit the first-direction driving power to the second roller. 1. An image recording apparatus , comprising:a drive source configured to perform forward rotation and reverse rotation;a first roller rotatable in a first direction by the forward rotation of the drive source to convey a conveyed medium in a conveying direction, the first roller being rotatable in a second direction by the reverse rotation of the drive source, the second direction being reverse to the first direction;a recording device disposed downstream of the first roller in the conveying direction and configured to record an image on the conveyed medium;a second roller disposed downstream of the recording device in the conveying direction;a first power transmitter configured to transmit a first-direction driving power to the second roller and not to transmit a second-direction driving power to the second roller, wherein the first-direction driving power is a rotational driving power of the first roller rotating in the first direction, and the second-direction driving power is a rotational driving power of the first roller ...

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03-10-2013 дата публикации

IMAGE RECORDING APPARATUS

Номер: US20130256983A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image recording apparatus includes: a first motor for rotating first and second rollers; a second motor; a recording portion provided downstream of the first roller, the second roller provided downstream of the recording portion; a sensor portion provided between the recording portion and the second roller to sense a sheet; and a first gear movable between a first position and a second position where reverse rotational power of the first roller is transmitted to the second roller. When a controller determines that an upstream edge of the sheet in a conveying direction has reached a third position located between the recording portion and the sensor portion, the controller starts driving the second motor to move the first gear from the first position to the second position and thereafter controls the first motor to perform a forward rotation and a reverse rotation alternately a set number of times. 1. An image recording apparatus , comprising:a first motor configured to perform a forward rotation and a reverse rotation;a first roller rotatable to produce a rotational driving power, wherein, when the first motor performs the forward rotation, the first roller is rotated in a first rotational direction to produce a first rotational driving power and to convey a sheet in a conveying direction along a conveyance path, and wherein, when the first motor performs the reverse rotation, the first roller is rotated in a second rotational direction reverse to the first rotational direction to produce a second rotational driving power;a second motor configured to perform a forward rotation and a reverse rotation;a recording portion provided downstream of the first roller in the conveying direction and movable in main scanning directions perpendicular to the conveying direction by the forward rotation and the reverse rotation of the second motor to record an image on the sheet;a second roller provided downstream of the recording portion in the conveying direction;a first power ...

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03-10-2013 дата публикации

CONVEYOR DEVICE

Номер: US20130256985A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A conveyor device includes: a first conveyor having a first roller; a second conveyor having a second roller and disposed downstream of the first conveyor; and a storage storing first information and second information in which a velocity or a deceleration of the first and second rollers is less in the second information than in the first information. A controller executes: a first rotation processing in which, when a state in which a sheet is nipped by the first conveyor is kept during a next conveyance in intermittent conveyance, a first roller and a second roller are rotated according to the first information in the next conveyance; and a second rotation processing in which, when the state is not kept in the next conveyance, the first drive roller and the second drive roller are rotated according to the second information in the next conveyance. 1. A conveyor device , comprising:a drive source configured to produce: a first rotational driving power by a forward rotation of the drive source; and a second rotational driving power by a reverse rotation of the drive source;a first conveyor comprising a first drive roller and a first driven roller;a second conveyor disposed downstream of the first conveyor in a conveying direction, the second conveyor comprising a second drive roller and a second driven roller;a first power transmitter configured to transmit the first rotational driving power and the second rotational driving power to the first drive roller, the first power transmitter being configured to have the first conveyor convey the sheet in the conveying direction while nipping the sheet when the first rotational power is transmitted to the first drive roller, the first power transmitter being configured to have the first conveyor convey the sheet in a direction opposite the conveying direction when the second rotational power is transmitted to the first drive roller;a second power transmitter configured to transmit the first rotational driving power to the ...

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03-10-2013 дата публикации

IMAGE RECORDING DEVICE AND IMAGE RECORDING METHOD

Номер: US20130258014A1
Автор: KATAGAMI Satoru
Принадлежит:

An image recording device includes a support member, a recording head, a conveyor unit, a surface modifying apparatus and a movement mechanism. The conveyor unit intermittently conveys a recording medium toward a support member along a conveyance path, and intermittently passes the recording medium through a processing position disposed on an upstream side of the supporting member with respect to the conveyance path. The surface modifying apparatus, during a passage time in which the recording medium passes through the processing position, executes surface modification processing on the recording medium passing through the processing position, and emits heat along with execution of the surface modification process. The movement mechanism places the recording medium passing through the processing position near the surface modifying apparatus during the processing time, and separates the recording medium and the surface modifying apparatus when the passage time ends. 1. An image recording device comprising:a support member configured and arranged to support a recording medium conveyed along a conveyance path;a recording head configured and arranged to eject a liquid on the recording medium while stopped above the support member to record an image;a conveyor unit configured and arranged to intermittently convey the recording medium toward the support member along the conveyance path, and to intermittently pass the recording medium through a processing position disposed on an upstream side of the supporting member with respect to the conveyance path by intermittently conveying the recording medium to the processing position along the conveyance path;a surface modifying apparatus configured and arranged to, during a passage time in which the recording medium passes through the processing position, execute surface modification processing on the recording medium passing through the processing position, and to emit heat along with execution of the surface modification ...

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03-10-2013 дата публикации

PRINTING APPARATUS

Номер: US20130258021A1
Принадлежит: DAINIPPON SCREEN MFG. CO., LTD.

Each unit of an inkjet printing station includes chains arranged along a transportation path of a web paper. A holding mechanism is fixedly arranged on the chain. The holding mechanism holds both ends of a paper passing bar to which the web paper is attached. Driving the chain with a handle causes the holding mechanism to move. The paper passing bar is delivered between the units adjoining each other. Therefore, the paper passing bar is movable from one end to the other end of the inkjet printing station formed by the units. Moreover, when specifications are changed for changing combination of the units, the combination can be made optionally. 1. A printing apparatus for performing printing to a print medium supplied from a roll of the print medium , comprising:two or more units formed by dividing a printing apparatus body depending on functions;an endless belt provided for each of the two or more units and disposed along a transportation path of the print medium;a holding mechanism fixedly arranged on the endless belt for holding both ends of an attachment bar to which the print medium is attached; andan endless-belt driving mechanism for driving the endless belt, the two or more units delivering the attachment bar between the units adjoining each other.2. The apparatus according to claim 1 , whereinthe holding mechanism includes a recess for holding the both ends of the attachment bar.3. The apparatus according to claim 2 , whereinthe recess includes a locking mechanism for preventing the attachment bar from dropping off4. The apparatus according to claim 2 , further comprising:an attitude changing section for changing an attitude of the recess into an attitude for delivering the attachment bar by rotation of the recess, the recess being rotatable relative to an axis of the attachment bar.5. The apparatus according to claim 3 , further comprising:an attitude changing section for changing an attitude of the recess into an attitude for delivering the attachment bar ...

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10-10-2013 дата публикации

CONTROL METHOD OF FEEDER AND IMAGE FORMING SYSTEM

Номер: US20130264763A1

When conveying an envelope, a posture of the envelope is corrected by hitting a closed portion of the envelope, which is opposite side of an opened portion of the envelope, against a nip portion between upper and lower rollers of the pre-registration rollers and the envelope is then conveyed with the envelope being nipped by the upper and lower rollers of the pre-registration, rollers. The upper and lower rollers of the pre-registration rollers nip the envelope to remove air from the envelope. When setting an envelope mode to control a conveying speed of the envelope based on a coverage rate of an image to be formed on the envelope, the conveying speed of the envelope is controlled by adjusting a rotation speed of the registration rollers based on the coverage rate of the set envelope mode. 1. A control method of a feeder including:a feeding portion which stores a sheet, of paper containing an envelope with a predetermined size and feeds the stored sheet of paper, the envelope containing an opened portion and a closed portion; anda pair of registration rollers containing an upper roller and a lower roller, each roller having a longitudinal length longer than a width of the fed sheet of paper, the registration rollers correcting a posture of the sheet of paper fed from the feeding portion to convey the sheet of paper toward a downstream side along a sheet-conveying direction,wherein, when conveying the envelope, the posture of the envelope is corrected by hitting the closed portion of the envelope, which is opposite side of the opened portion of the envelope, against a nip portion between the upper and lower rollers of the registration rollers and the envelope is then conveyed with the envelope being nipped by the upper and lower rollers of the registration rollers, the method comprising:a setting step of setting an envelope mode to control a conveying speed of the envelope based on a coverage rate of an image to be formed on the envelope; anda control step of ...

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10-10-2013 дата публикации

SHEET DETECTION DEVICE, AUTOMATIC DOCUMENT FEEDER AND IMAGE FORMING APPARATUS

Номер: US20130264768A1
Автор: ARAISHI Kuniaki
Принадлежит: KYOCERA Document Solutions Inc.

A sheet detection device includes a moving member and a support member. The moving member includes an interference part capable of interfering with a sheet that passes through a sheet transport path. The support member slidably supports the moving member. When a sheet passes through the sheet transport path in a forward direction, the sheet interferes with the interference part of the moving member in a protruding posture, and the moving member turns in a first direction along the forward direction in a state of maintaining the protruding posture. When a sheet once stopped on the sheet transport path is pulled out in a reverse direction with a predetermined pull-out force, the moving member turns in a second direction that is opposite to the first direction, and changes the posture from the protruding posture to a retreating posture against a biasing force of a first bias member. 1. A sheet detection device for detecting a sheet which passes through a sheet transport path , comprising:a moving member including an interference part capable of interfering with the sheet that passes through the sheet transport path;a support member which slidably supports the moving member in a manner that allows a change in a posture thereof between a protruding posture in which the interference part protrudes to the sheet transport path and a retreating posture in which the interference part retreats from the sheet transport path relative to the protruding posture, and which includes a rotating axis extending in a direction that is orthogonal to the sliding direction, and rotates about the rotating axis to thereby cause the moving member to rotate about the rotating axis;a first bias member which biases the moving member so that the moving member takes the protruding posture; anda detection unit which performs a detection operation of the sheet based on the rotation of the moving member, whereinwhen the sheet passes through the sheet transport path in a forward direction, the sheet ...

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10-10-2013 дата публикации

SHEET CONVEYING APPARATUS

Номер: US20130264769A1
Автор: Sugizaki Yoshiaki
Принадлежит: TOSHIBA TEC KABUSHIKI KAISHA

According to one embodiment, a link member is arranged on a conveying path where a sheet is conveyed in a direction substantially perpendicular to an access door. In conjunction with the opening operation of the access door, the link member is raised. On the raised portion of the link member, an upper side conveying guide has one side supported in a free rotatable way and forms a portion of the upper side of the conveying path where the sheet is conveyed in the direction substantially perpendicular to the access door. By interlocking with the opening operation of the access door, the link member is raised, and the upper side conveying guide is opened. 1. A sheet conveying apparatus , comprising:an access door having one end supported on the side surface of a main body;a conveying path that conveys a sheet in a direction substantially perpendicular to the access door when the access door is in a closed position;a first conveying guide, which has an end thereof located over the conveying path to form a portion of the conveying path, and another end thereof supported by a guide pivot; anda link member, which connects the first conveying guide and the access door, and upon opening of the access door, swings the first conveying guide about the guide pivot in an arc like direction different from the opening direction of the access door to expose the conveying path otherwise overlain by the first conveying guide.2. The sheet conveying apparatus according to claim 1 , wherein the link member includes a first link member claim 1 , which has one side slidable on the conveying path and has the other side supporting the first conveying guide to swing thereabout claim 1 , and a second link member claim 1 , which is arranged between the first link member and the access door claim 1 , and by an interconnected relationship with the opening/closing of the access door claim 1 , raises or lowers the first link member.3. The sheet conveying apparatus according to claim 1 , wherein the ...

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17-10-2013 дата публикации

Sheet conveying device, sheet feed device and image forming apparatus having the same

Номер: US20130270764A1
Автор: Masahiko Mizuno
Принадлежит: Kyocera Document Solutions Inc

A sheet sender 21 A includes a lift plate 21 P, a feed roller 21 B and a registration roller 23 . A biasing spring 21 S applies an upward force onto the lift plate 21 P. The lift plate 21 P is moved upward by eccentric cams 60 which are arranged at axial ends of the feed roller 21 B and rotationally driven by arm protrusions 211 which have come in contact with the eccentric cams 60 . A rotational driving force is transmitted to a feed gear 220 and a registration gear 231 from a main gear 70 to rotate the feed roller 21 B and the registration roller 23 . A gear of the main gear 70 that engages with the feed gear 220 is idly rotatable within a predetermined angle with respect to a gear that engages with the registration roller 23.

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24-10-2013 дата публикации

FEED ASSEMBLY AND IMAGE FORMING APPARATUS INCORPORATING FEED ASSEMBLY

Номер: US20130277907A1
Принадлежит:

A feed assembly configured to feed a sheet, including: a feed roller configured to convey the sheet; a support element configured to rotatably and detachably support the feed roller; a base including a guide surface configured to guide the sheet; a frictional element configured to generate a frictional force on the sheet guided by the guide surface; and an elastic member provided between the frictional element and the base; wherein a recess is defined in the guide surface to accommodate the frictional element; and the elastic member causes the frictional element to project from the guide surface when the feed roller is detached from the support element. 1. A feed assembly configured to feed a sheet , comprising:a feed roller configured to feed the sheet;a support element configured to support the feed roller detachably and rotatably;a base including a guide surface configured to guide the sheet; anda frictional element configured to apply a frictional force on the sheet guided by the guide surface; (i) a frictional piece configured to press the sheet against the feed roller,', '(ii) a main plate configured to support the frictional piece,', '(iii) an elastic member configured to bias the main plate toward the feed roller,', '(iv) a side plate configured to support the main plate rotatably, and', '(v) a backup plate configured to support the elastic member, wherein, 'wherein the frictional element includesthe guide surface is provided with a recess in which the frictional element is stored; andthe elastic member rotates the main plate with respect to the side plate so that the main plate protrudes from the guide surface and places the main plate in a position where the main plate is detachable from the base when the feed roller is removed from the support element.2. The feed assembly according to claim 1 , further comprising:a lift plate situated in an upstream side of the frictional element so as to push a leading edge of the sheet toward the feed roller; and ...

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31-10-2013 дата публикации

MULTI-FEED DETECTION DEVICE

Номер: US20130285319A1
Автор: INOSE Satoshi
Принадлежит: KOMORI CORPORATION

A multi-feed detection device includes: an arm member supported swingably and configured to come into contact with a traveling sheet; and detecting means for detecting whether a plurality of the traveling sheets are overlapped and fed, on the basis of swing of the arm member. The detecting means includes: a detection plate attached to an arm; and a non-contact sensor configured to measure, in a non-contact manner, the positional relation between the non-contact sensor and the detection plate, the positional relation being changed by swing of the arm. 1. A multi-feed detection device comprising:an arm member supported swingably and configured to come into contact with a traveling sheet; anddetecting means for detecting whether a plurality of the traveling sheets are overlapped and fed, on the basis of swing of the arm member, whereinthe detecting means includesa target, andnon-contact measuring means for measuring, in a non-contact manner, a positional relation between the non-contact measuring means and the target, the positional relation being changed by swing of the arm member.2. The multi-feed detection device according to claim 1 , further comprising:a bracket member swingably supporting the arm member;a turnable support shaft supporting the bracket member and configured to turn the bracket member; anda holder member rotatably attached to the support shaft and fixedly supported so as not to be turned by turn of the support shaft, wherein the target of the detecting means is provided to the arm member,the non-contact measuring means of the detecting means is provided to the holder member, andthe support shaft is configured to be turned in such a way as to move the arm member between an operation position at which the arm member comes into contact with the sheet and a retreat position at which the arm member is separated from the sheet.3. The multi-feed detection device according to claim 2 , further comprising:biasing means for biasing the arm member in a ...

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31-10-2013 дата публикации

Image Recording Apparatus

Номер: US20130286127A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image recording device may include corrugate mechanisms to prevent undesired bending and jamming of a recording sheet. In some examples, the image recording device may include a first corrugate mechanism, a second corrugate mechanism and a third corrugate mechanism. The first, second and third corrugate mechanisms may be configured to create a corrugated shape in a recording sheet. The second and third corrugate mechanisms, in one or more arrangements, may be located downstream of the first corrugate mechanism and an ink nozzle. The third corrugate mechanism may further be configured such that no upper contact portion thereof may be disposed at a same position, with respect to the width direction, as endmost upper contact portions of the first corrugate mechanism with respect to the width direction. In yet other examples, the third corrugate mechanism may be located downstream of a reverse sheet conveying path. 1. An image recording apparatus comprising:a platen configured to receive a sheet conveyed in a conveying direction;a recording head configured to eject ink droplets from nozzles onto the sheet held by the platen;a plurality of first upper contact portions disposed upstream of the nozzles with respect to the conveying direction and spaced apart from each other with respect to a width direction orthogonal to the conveying direction, and wherein the plurality of upper contact portions are configured to contact an upper surface of the sheet;a first lower contact portion disposed between a pair of first upper contact portions of the plurality of first contact upper portions with respect to the width direction, and wherein the first lower contact portion is configured to contact a lower surface of the sheet to form a corrugated shape in the sheet in conjunction with the plurality of first contact portions;a plurality of second upper contact portions disposed downstream of the nozzles with respect to the conveying direction and spaced apart from each other with ...

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07-11-2013 дата публикации

CYLINDRICAL SHAFT, TRANSPORT ROLLER, TRANSPORT UNIT, AND PRINTING APPARATUS

Номер: US20130292900A1
Принадлежит:

A cylindrical shaft is provided of which a pair of ends are formed in a cylindrical shape by a press work so as to form a joining portion therebetween. Here, the joining portion includes: a central linear section which is provided on a center portion in an axis direction of the cylindrical shaft and is formed in a linear shape to be parallel to the axis direction of the cylindrical shaft; and a folded section which includes a plurality of intersections which are provided on both ends of the center portion and are disposed so as to be extended in a direction perpendicular to the axis direction of the cylindrical shaft, and a connection linear section which connects ends of a pair of the adjacent intersections. In addition, the connection linear section is constituted by a first linear section which connects ends on one side of the pair of the intersections and a second linear section which connects ends on the other side of the pair of the intersections and formed shorter than the first linear section. In addition, a distance between the pair of the ends of the center portion is longer than a distance between the pair of the ends of the second linear section. 1. A printing apparatus comprising:a transport roller that includes a cylindrical shaft having a joint, the joint extending between one axial end of the cylindrical shaft and an opposite axial end of the cylindrical shaft; anda driven roller that nips a recording medium together with the transport roller and transports the recording medium together with the transport roller; anda recording unit for recording on the recording medium, a first joint extending along an axial direction in which the cylindrical shaft extends;', 'a projecting portion provided on one axial end side or an opposite axial end side than the first joint and extends in a direction cross-wise to the first joint,, 'wherein the joint further compriseswherein a spacing of the joint in the first joint is wider than a maximum spacing of the joint ...

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14-11-2013 дата публикации

SHEET TRANSPORT DEVICE AND IMAGE FORMING APPARATUS

Номер: US20130301089A1
Принадлежит: FUJI XEROX CO., LTD.

A sheet transport device includes a shaft member that extends in an axial direction orthogonal to a sheet transport direction, and a roller that includes plural components which are assembled together so as to surround the shaft member. The components have a shape such that a joint between the components is formed on an outer peripheral surface of the roller which is formed by assembling the components together. The joint extends from one end to another end of the outer peripheral surface in the axial direction while bending or curving at least at a portion in the middle thereof. 1. A sheet transport device comprising:a shaft member that extends in an axial direction orthogonal to a sheet transport direction; anda roller that includes a plurality of components which are assembled together so as to surround the shaft member;wherein the components have a shape such that a joint between the components is formed on an outer peripheral surface of the roller which is formed by assembling the components together, the joint extending from one end to another end of the outer peripheral surface in the axial direction while bending or curving at least at a portion in the middle thereof.2. The sheet transport device according to claim 1 , wherein the joint has a shape that extends in the axial direction from the one end of the outer peripheral surface in the axial direction claim 1 , then extends in a circumferential direction of the outer peripheral surface claim 1 , and then extends in the axial direction to the other end.3. The sheet transport device according to claim 1 , wherein the roller is locked against rotation with respect to the shaft member.4. The sheet transport device according to claim 3 ,wherein, in the shaft member, recesses corresponding to the components and partial flat portions corresponding to the components are formed at an attachment position for the roller;wherein the components include protrusions to be inserted into the respective recesses, and flat ...

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21-11-2013 дата публикации

FLUID APPLICATION SYSTEM AND METHOD

Номер: US20130307915A1
Принадлежит:

A fluid application system and method having a support structure for guiding a plurality of pallets along a path of travel through the system. The plurality of pallets for arranging a medium that receives fluid during operation. The system further includes an application assembly for applying fluid and energy to a medium arranged on the plurality of pallets and a conveyance arrangement comprising first and second conveyors for transferring the one or more pallets through the fluid application system. The first and second conveyors have a dedicated trolley selectively coupled to one of the plurality of pallets during movement along a first direction of the path of travel and selectively decoupled from the one of the plurality of pallets during movement along a second direction of the path of travel. 1. A fluid application system comprising:a support structure for guiding a plurality of pallets along a path of travel through said fluid application system, the plurality of pallets for arranging a medium that receives fluid during operation;an application assembly for applying fluid and energy to a medium arranged on the plurality of pallets, the application assembly translating during operation in an application direction transverse to said path of travel; anda conveyance arrangement comprising first and second conveyors, each for transferring one of said plurality of pallets through the fluid application system, first and second conveyors having a dedicated carrier selectively coupled to one of said plurality of pallets during movement along a first direction of said path of travel and selectively decoupled from said one of the plurality of pallets during movement along a second direction of said path of travel.2. The fluid application system of wherein said dedicated carrier further comprises a linear actuator for coupling and decoupling said dedicated carrier with said plurality of pallets.3. The fluid application system of wherein said first and second conveyors ...

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05-12-2013 дата публикации

PHOSPHOR SHEET AND AUXILIARY TRANSPORT MEMBER

Номер: US20130320238A1
Автор: OGURA Nobuhiko
Принадлежит:

A phosphor sheet includes a flexible substrate; a phosphor layer formed on a front face of the substrate, and plural magnets provided on a back face of the substrate. 1. A phosphor sheet comprising:a flexible substrate;a phosphor layer formed on a front face of the substrate; anda plurality of magnets provided on a back face of the substrate.2. The phosphor sheet of claim 1 , wherein the plurality of magnets are flexible magnet sheets.3. The phosphor sheet of claim 1 , wherein the plurality of magnets are disposed along a first direction claim 1 , and spaces that extend in a direction orthogonal to the first direction are provided between the magnets that are adjacent to each other in the first direction.4. The phosphor sheet of claim 2 , wherein the plurality of magnets are disposed along a first direction claim 2 , and spaces that extend in a direction orthogonal to the first direction are provided between the magnets that are adjacent to each other in the first direction.5. The phosphor sheet of claim 3 , further comprising a plurality of magnet rows that are arrayed in a direction intersecting with the first direction claim 3 , each of the plurality of magnet rows comprising a plurality of the magnets arrayed along the first direction.6. The phosphor sheet of claim 4 , further comprising a plurality of magnet rows that are arrayed in a direction intersecting with the first direction claim 4 , each of the plurality of magnet rows comprising a plurality of the magnets arrayed along the first direction.7. The phosphor sheet of claim 1 , wherein the plurality of magnets are disposed without spaces between adjacent magnets.8. The phosphor sheet of claim 2 , wherein the plurality of magnets are disposed without spaces between adjacent magnets.9. A phosphor sheet comprising:a flexible substrate;a phosphor layer formed on a front face of the substrate;a flexible magnet sheet provided on a back face of the substrate; anda plurality of first grooves that are disposed ...

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05-12-2013 дата публикации

Printing medium conveying device and image forming apparatus

Номер: US20130320616A1
Автор: Toshihiro Nakagaki
Принадлежит: Ricoh Co Ltd

The present device includes a conveying path, a contact member coming in contact with the front of a printing medium to stop the conveyance of the medium, a hold member holding the front of the medium having contacted with the contact member, a first conveying unit conveying the medium so as to abut the contact member to form slack on the medium between itself and the hold member holding the medium, and a second conveying unit being provided nearer to the hold member than the first conveying unit in the conveying direction and conveying the medium so as to abut the contact member to form the slack. The second conveying unit is movable so that a part thereof existing on the side where the slack is formed on the medium in the conveying path is moved to the outside of the conveying path.

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12-12-2013 дата публикации

IMAGE FORMING APPARATUS

Номер: US20130328262A1
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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19-12-2013 дата публикации

Multi-function peripheral with linking set

Номер: US20130334011A1
Автор: Chung-Liang Huang

A multi-function peripheral having an automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space.

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19-12-2013 дата публикации

SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS PROVIDED WITH SAME

Номер: US20130334762A1
Автор: Matsuoka Keiji
Принадлежит:

A sheet conveying apparatus includes a casing with an internal space, a sheet placing portion, a sheet feeding unit, a driving unit, an opening/closing cover and a drive switching unit. A sheet is to be placed on the sheet placing portion. The sheet feeding unit includes a sheet feeding member. The driving unit is arranged in the internal space and coupled to a rotational drive system of the sheet feeding member and transmits a rotational drive force to the sheet feeding member. The opening/closing cover is openably and closably arranged on the casing to cover a opening formed in the casing. The drive switching unit uncouples the driving unit and the sheet feeding member in association with a switching movement of the opening/closing cover from a closed state to the open state. The sheet feeding unit is mountable into and removable from the internal space through the opening. 1. A sheet conveying apparatus , comprising:a casing with an internal space;a sheet placing portion which is arranged in the internal space and on which a sheet is to be placed;a sheet feeding unit which is arranged in the internal space to face the sheet and includes a sheet feeding member having a rotational drive system for conveying the sheet in a predetermined direction by being driven and rotated;a driving unit which is arranged in the internal space and coupled to the rotational drive system of the sheet feeding member and transmits a rotational drive force to the sheet feeding member;an opening which is formed in the casing and exposes the sheet feeding unit to the outside of the casing;an opening/closing cover which is openably and closably arranged on the casing to cover the opening and exposes the sheet feeding unit in an open state; anda drive switching unit which uncouples the driving unit and the sheet feeding member in association with a switching movement of the opening/closing cover from a closed state to the open state;wherein the sheet feeding unit is mountable into and ...

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19-12-2013 дата публикации

Sheet Feed Apparatus and Method

Номер: US20130334763A1
Автор: HAYDT, III Leo A.
Принадлежит:

A sheet material insert feeder device for feeding sheets of material from a substantially horizontal stack of sheets of material onto a transport track. The sheet material insert feeder device includes a trough with a surface to receive the substantially horizontal stack of sheets of material, the surface including a front end and a back end, a conveyor to move the substantially horizontal stack of sheets of material along the surface, an aperture at the front end of the surface, the aperture housing an insert movable between an upper position and a lower position, a breaker plate near the front end of the surface to support the substantially horizontal stack of sheets of material there against, and a suction device near the front end of the surface to suction and separate a sheet from the substantially horizontal stack of sheets of material. 1. A sheet material insert feeder device for feeding sheets of material from a substantially horizontal stack of sheets of material onto a transport track , the sheet material insert feeder device comprising:a trough comprising a surface to receive the substantially horizontal stack of sheets of material, the surface including a front end and a back end;a conveyor to move the substantially horizontal stack of sheets of material along the surface;an aperture at the front end of the surface, the aperture housing an insert movable between an upper position and a lower position;a breaker plate near the front end of the surface to support the substantially horizontal stack of sheets of material there against; anda suction device near the front end of the surface to suction and separate a sheet from the substantially horizontal stack of sheets of material.2. The sheet material insert feeder device of claim 1 , further comprising:a gripper comprising a gripper jaw movably coupled thereto between an open position and a closed position; andwherein the gripper is movable between an upper position and a lower position such that, in the ...

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26-12-2013 дата публикации

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

Номер: US20130341852A1
Автор: KARIKUSA Yuji
Принадлежит: RICOH COMPANY, LTD.

A sheet conveying device includes a pair of upstream sheet conveying rollers, a pair of downstream sheet conveying rollers, and a gate unit including multiple striking faces disposed adjacent to the pair of downstream sheet conveying rollers. The gate unit is enabled to enter and evacuate from a sheet conveyance path. A skew correction control mechanism is provided to correct skew by bringing the gate unit into the sheet conveyance path to cause the striking faces to collide with a leading end of the sheet with the skew while rotating the pair of upstream sheet conveying rollers. One or more rollers are included in one of the pair of upstream sheet conveying rollers and are disposed in the vicinity of a widthwise center of the sheet conveyance path. A width of one or more rollers is smaller than a widthwise interval between the multiple striking faces. 1. A sheet conveying device comprising:a sheet conveying guide disposed in a sheet conveyance path to guide a sheet;a pair of upstream sheet conveying rollers disposed upstream of the sheet conveying guide in a sheet conveyance direction in the sheet conveyance path;a pair of downstream sheet conveying rollers disposed downstream of the pair of upstream side sheet conveying rollers in the sheet conveyance direction;a gate unit located adjacent to the pair of downstream sheet conveying rollers, the gate unit including at least two striking faces divided perpendicular to the sheet conveyance direction, the gate unit enabled to enter and evacuate from the sheet conveyance path, anda skew correction control mechanism to correct skew by bringing the gate unit into the sheet conveyance path to cause the striking face to collide with a leading end of the sheet coming with skew while rotating the pair of upstream sheet conveying rollers,wherein at least one roller included in one of the pair of upstream sheet conveying rollers is disposed in the vicinity of a widthwise center of the sheet conveyance path, the at least one ...

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26-12-2013 дата публикации

Paper feeding apparatus of printer

Номер: US20130341859A1
Принадлежит: Hon Hai Precision Industry Co Ltd

A paper feeding apparatus includes a bracket. A first feeding shaft is pivotably mounted on the bracket. A number of first feeding rollers is mounted on the first feeding shaft. The first feeding rollers rotate together with the first feeding shaft to contact a sheet of paper and move the paper forwards. A number of fans are mounted on the first feeding shaft. The fans rotate together with the first feeding shaft to drive air against the paper to prevent it becoming wrapped around one of the rollers.

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26-12-2013 дата публикации

PAPER DELIVERY DEVICE

Номер: US20130341860A1
Автор: CHEN YI-KUN
Принадлежит: HON HAI PRECISION INDUSTRY CO., LTD.

A paper delivery device includes a mounting shaft, a paper guide assembly attached to the mounting shaft, a first wheel, a second wheel, and a driving module configured to drive the first wheel and the second wheel to rotate in a first direction or a second direction that is reverse to the first direction. The paper guide assembly includes a first guide module attached to the mounting shaft and a second guide module attached to the mounting shaft. The first wheel abuts the first guide module. The second wheel abuts the second guide module. The first guide module and the second guide module is movable towards each other when the first wheel and the second wheel rotate in the first direction, or movable away from each other when the first wheel and the second wheel rotate in the second direction. 1. A paper delivery device comprising:a mounting shaft;a paper guide assembly comprising at least one first guide unit attached to the mounting shaft, a first elastic member attached to the at least one first guide unit, at least one second guide unit attached to the mounting shaft, and a second elastic member attached to the at least one second guide unit;a first wheel abutting the at least one first guide unit;a second wheel abutting the at least one second guide unit; anda driving module configured to drive the first wheel and the second wheel to rotate in a first direction or a second direction that is opposite to the first direction;wherein the at least one first guide unit and the at least one second guide unit is movable towards each other when the first wheel and the second wheel rotated in the first direction, or movable away from each other when the first wheel and the second wheel rotated in the second direction; the first elastic member and the second elastic member are capable biasing the at least one first guide unit and the at least one second guide unit moving towards each other when released.2. The paper delivery device of claim 1 , wherein each of the first ...

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02-01-2014 дата публикации

PAPER TRANSMISSION APPARATUS

Номер: US20140001695A1
Автор: LEE YI-LONG, WU CHANG-HSIU
Принадлежит: HON HAI PRECISION INDUSTRY CO., LTD.

A paper transmission apparatus includes a paper-in mechanism including a first roller, a paper-out mechanism including a second roller, a gear assembly, and a swing member. The swing member is connected to the first roller to the gear assembly. The first roller is rotatable along a first direction to rotate the swing member, and the swing member is capable of moving the gear assembly to be meshed with the second roller, to accelerate a rotating speed of the second roller being greater than a rotating speed of the first roller. The first roller is rotatable along a second direction opposite to the first direction to rotate the swing arm, and the swing arm is capable of moving the gear assembly to be meshed with the second roller, to decelerate the rotating speed of the second roller being smaller than the rotating speed of the firs roller. 1. A paper transmission apparatus comprising:a paper-in mechanism comprising a first roller;a paper-out mechanism comprising a second roller;a gear assembly meshed with the first roller; anda swing member connecting the first roller to the gear assembly,wherein the first roller is rotatable along a first direction to rotate the swing member, the swing member is configured to move the gear assembly to be meshed with the second roller, to accelerate a rotating speed of the second roller to be greater than a rotating speed of the first roller; the first roller is rotatable along a second direction opposite to the first direction to rotate the swing member, the swing member is configured to move the gear assembly to be meshed with the second roller, and to decelerate the rotating speed of the second roller to be smaller than the rotating speed of the first roller.2. The paper transmission device of claim 1 , wherein the paper-in mechanism comprises a paper-in shaft claim 1 , the first roller is secured to the paper-in shaft rotated with the first roller claim 1 , and the swing member is pivotally secured to the paper-in shaft.3. The ...

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02-01-2014 дата публикации

IMAGE RECORDING DEVICE

Номер: US20140001697A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A first feeder contacts a first surface of a first sheet held in a first tray and feeds the first sheet toward a recording unit. A second feeder contacts a first surface of a second sheet held in a second tray and feeds the second sheet toward the recording unit. An inner member is disposed above a standing plate. An outer member comprises an upstream portion opposing the standing plate, and a downstream portion opposing the inner member. The inner member guides the first surface of the first sheet and the first surface of the second sheet. The standing plate guides the first surface of the second sheet. The upstream portion of the outer member guides a second surface of the second sheet, and the downstream portion guides a second surface of the first sheet and the second surface of the second sheet. The standing plate moves relative to the outer member. 1. An image recording device:a first tray comprising a first bottom plate configured to hold thereon a first sheet, the first sheet having a first surface and a second surface opposite to the first surface;a second tray disposed below the first tray and comprising a second bottom plate configured to hold thereon a second sheet, the second sheet having a first surface and a second surface opposite to the first surface;a recording unit configured to record an image selectively on the first sheet and the second sheet;a first feeder configured to contact the first surface of the first sheet held on the first bottom plate and to feed the first sheet in a feed direction;a second feeder configured to contact the first surface of the second sheet held on the second bottom plate and to feed the second sheet in the feed direction;a standing plate disposed downstream of the first bottom plate of the first tray in the feed direction and comprising a front side and a back side opposite to the front side, the front side including an inclined surface which is inclined relative to and extends from the first bottom plate and is ...

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02-01-2014 дата публикации

Image Forming Apparatus

Номер: US20140001698A1
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image forming apparatus including: a sheet feeding section; an image forming section configured to form an image on the sheet fed from the sheet feeding section; and a control device configured to: cause the image forming section to form the image, cause the image forming section to perform a quality assurance operation, if a resource necessary for the image forming operation is not available for a predetermined time from an end of the image forming operation, and extend the predetermined time when determined that it is necessary for the user to set the sheet in the sheet feeding section prior to the image forming operation to be longer than the predetermined time when determined that it is not necessary for the user to set the sheet in the sheet feeding section prior to the image forming operation. 1. An image forming apparatus comprising:a sheet feeding section configured to feed a sheet;an image forming section configured to perform an image forming operation of forming an image on the sheet fed from the sheet feeding section; and cause the image forming section to perform the image forming operation,', 'cause the image forming section to perform a quality assurance operation for assuring a quality of an image, if a resource necessary for the image forming operation is not available for a predetermined time from an end of the image forming operation,', 'determine whether or not it is necessary for a user to set the sheet in the sheet feeding section prior to the image forming operation, and', 'extend the predetermined time when it is determined that it is necessary for the user to set the sheet in the sheet feeding section prior to the image forming operation to be longer than the predetermined time when it is determined that it is not necessary for the user to set the sheet in the sheet feeding section prior to the image forming operation., 'a control device configured to2. The image forming apparatus according to claim 1 ,wherein the sheet feeding section ...

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02-01-2014 дата публикации

Sheet conveyor and image forming apparatus incorporating same

Номер: US20140001699A1
Принадлежит: Ricoh Co Ltd

A sheet conveyor incorporated in an image forming apparatus includes an attraction/separation unit including an attraction belt, a first tension roller, and a second tension roller, a support member to support the attraction/separation unit, a roller drive unit to rotate one of the first and second tension rollers, a charging member to uniformly charge a surface of the attraction belt, a mechanism to swing the attraction/separation unit to move the attraction belt reciprocally about the support member between a sheet attraction position and a sheet conveyance position being located farther from the sheet stack than the sheet attraction position, and a pressing member disposed inside a loop of the attraction belt to press the attraction belt at the sheet attraction position toward the sheet stack and separating from the attraction belt at the sheet conveyance position.

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09-01-2014 дата публикации

Cover Opening-Closing Mechanism and Sheet Feeder Having the Same

Номер: US20140008865A1
Автор: TAKAHATA Muneaki
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A cover opening-closing mechanism is provided, which is configured to allow a cover to rotate around a rotational axis with respect to a housing, the cover opening-closing mechanism including a connecting member configured to connect the housing with the cover, a first contact portion disposed at the cover, and a second contact portion disposed at the housing, the second contact portion configured to contact the first contact portion of the cover so as to hold the cover in a hold position relative to the housing. 1. A cover opening-closing mechanism configured to allow a cover to rotate around a rotational axis with respect to a housing , the cover opening-closing mechanism comprising:a connecting member configured to connect the housing with the cover;a first contact portion disposed at the cover; anda second contact portion disposed at the housing, the second contact portion configured to contact the first contact portion of the cover so as to hold the cover in a hold position relative to the housing.2. The cover opening-closing mechanism according to claim 1 , a first portion disposed at an end of the connecting member, the first portion configured to engage with the housing;', 'a second portion disposed at a different end of the connecting member, the second portion configured to engage with the cover; and', 'a middle portion disposed between the first portion and the second portion, the middle portion configured to be bent when the cover is in the hold position relative to the housing and to be linearly stretched when the cover is further opened to an open position from the hold position relative to the housing, and, 'wherein the connecting member compriseswherein an angle between the cover in the open position and the housing is greater than an angle between the cover in the hold position and the housing.3. The cover opening-closing mechanism according to claim 2 ,wherein the first portion of the connecting member is disposed to be farther from the rotational ...

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09-01-2014 дата публикации

PAPER PRESSING APPARATUS FOR PRINTING APPARATUS

Номер: US20140008866A1
Автор: HSU SHAO-HUNG
Принадлежит: HON HAI PRECISION INDUSTRY CO., LTD.

A paper pressing apparatus for a printing apparatus includes a bracket, a paper pressing member, a first gear, a first rolling arm, a second rolling arm, and a first elastic member. The paper pressing member is lifted up from the bracket to accommodate heavily creased or buckled papers, and then released to press the papers flat as they are drawn into the printer. 1. A paper pressing apparatus for a printing apparatus comprising:a bracket;a paper pressing member movably secured to the bracket;a first gear fixed on the bracket;a first rolling arm connected to the paper pressing member;a second rolling arm movably connected to the first gear and the first rolling arm;a first elastic member connected to the bracket and the paper pressing member; anda resisting portion formed on the first gear, wherein when the first gear rotates along a first direction, the resisting portion resists against the second rolling arm, the second rolling arm moves toward a second direction on the bracket, the second rolling arm drives the first rolling arm and the paper pressing member rotating along a third direction, the first elastic member is elastically deformed, and the paper pressing member is lifted up from the bracket; and when the first gear rotates along the third direction, the resisting portion releases the second rolling arm, the second rolling arm moves toward a fourth direction on the bracket, the first elastic member is elastically returned, the first rolling arm and the paper pressing member rotate along the first direction, and the paper pressing member is lain down on the bracket.2. The paper pressing apparatus of claim 1 , further comprising a second elastic member mounted on the first rolling arm and the second rolling arm; when the resisting portion resists against the second rolling arm claim 1 , the second elastic member is elastically deformed; and when the resisting portion releases the second rolling arm claim 1 , the second elastic member is elastically returned ...

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09-01-2014 дата публикации

PRINTER WITH CRISS-CROSS DUPLEXER

Номер: US20140009549A1
Принадлежит:

A printer includes: a stationary inkjet printhead; a media feed path for guiding print media twice past the printhead; and a feed mechanism for feeding print media unidirectionally through the media feed path at a constant speed. The media feed path includes: a first section configured for feeding print media past the printhead from a first side of the printhead in a first direction with respect to the printhead; a second section downstream of the first section, the second section being configured for guiding print media around a single loop, the loop being positioned at a second side of the printhead opposite the first side; and a third section downstream of the second section, the third section being configured for feeding print media past the printhead from the second side of the printhead in an opposite second direction with respect to the printhead. 2. The printer of claim 1 , wherein claim 1 , during use claim 1 , a first face of the print medium faces the printhead in the first section and an opposite second face of the print medium faces the printhead in the second section.3. The printer of claim 1 , wherein the media feed path is identical for simplex and duplex printing.4. The printer of claim 1 , wherein a media input tray and a media output tray are positioned at the first side of the printhead claim 1 , wherein the media feed path is configured to feed print media to the first section from the media input tray and deliver print media to the media output tray from the third section.5. The printer of claim 4 , wherein the media output tray is positioned directly above the media input tray.6. The printer of claim 1 , wherein the media feed mechanism comprises a first drive roller positioned at the first side of the printhead claim 1 , the first drive roller being engaged with first and second idler rollers claim 1 , wherein a first nip is defined between the first drive roller and the first idler roller and a second nip is defined between the first drive ...

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16-01-2014 дата публикации

IMAGE FORMING APPARATUS, AND SHEET FEEDING DEVICE

Номер: US20140015191A1
Автор: FUJIKURA Hiroaki
Принадлежит: FUJI XEROX CO., LTD.

An image forming apparatus includes an image forming section that forms an image on a recording material, and a feeder that feeds the recording material to the image forming section, wherein the feeder includes a recording material accommodating unit that accommodates recording materials, a suction device that sucks air, forming members that are provided with an opening formed close to the recording materials accommodated in the recording material accommodating unit, and form a negative-pressure space, which has negative pressure due to suction by the suction device, together with the recording material facing the opening, partition members that include edge portions formed close to the opening, are formed so as to extend from the edge portions toward the inside of the negative-pressure space, and partition the negative-pressure space into two or more spaces, and feeding members that feed the recording material pulled toward the forming members when the negative-pressure space has negative pressure. 1. An image forming apparatus comprising:an image forming section that forms an image on a recording material; anda feeder that feeds the recording material to the image forming section, a recording material accommodating unit that accommodates recording materials,', 'a suction device that sucks air,', 'forming members that are provided with an opening formed close to the recording materials accommodated in the recording material accommodating unit, and form a negative-pressure space, which has negative pressure due to suction performed by the suction device, together with the recording material positioned at a position facing the opening,', 'partition members that include edge portions formed close to the opening, are formed so as to extend from the edge portions toward the inside of the negative-pressure space, and partition the negative-pressure space into two or more spaces, and', 'feeding members that feed the recording material pulled toward the forming members ...

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23-01-2014 дата публикации

SHEET CONVEYING APPARATUS

Номер: US20140021679A1
Автор: KATO SHINOBU
Принадлежит: CANON DENSHI KABUSHIKI KAISHA

A sheet conveying apparatus includes an intermediate plate () as a sheet receiving member configured to stack a sheet, a feed roller () as a feed rotator configured to feed the sheet stacked on the intermediate plate (), and a separation roller () as a separation member configured to separate the sheet from a sheet bundle stacked on the intermediate plate (). The sheet conveying apparatus further includes a restrict member () as a restrict portion disposed so as to reach a position overlapped in a width direction orthogonal to a sheet conveying direction with the feed roller () as at least one member among the feed roller () and the separation roller () and offset in the width direction from the feed roller (), and restricting a leading end position of the sheet stacked on the intermediate plate (). This arrangement enables to improve sheet conveying performance because the restrict member () can restrict the leading end position of the sheet stacked on the intermediate plate (). 1. A sheet conveying apparatus , comprising:a sheet receiving member on which a sheet is stacked;a feed rotator configured to feed the sheet stacked on the sheet receiving member;a separation member configured to separate the sheet from a sheet bundle stacked on the sheet receiving member; anda restrict portion disposed so as to reach a position where the restrict portion is overlapped in a width direction orthogonal to a sheet conveying direction with at least one member among the feed rotator and the separation member and where the restrict portion is offset in the width direction from the one member, and restricting a leading end position of the sheet stacked on the sheet receiving member.2. The sheet conveying apparatus according to claim 1 ,further comprising a moving portion that moves the sheet receiving member between a feed position where the sheet stacked on the sheet receiving member is bought into contact with the feed rotator and a standby position distant from the feed rotator ...

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30-01-2014 дата публикации

SHEET FEEDING DEVICE, AND IMAGE FORMING APPARATUS PROVIDED WITH SAME

Номер: US20140027974A1
Принадлежит: KYOCERA Document Solutions Inc.

The sheet feeding device includes a housing, first and second feeding paths, and first and second covers. The first feeding path extends in a vertical direction within the housing. The second feeding path extends in the vertical direction within the housing, and a lower end thereof is connected to an upper end of the first feeding path. The first cover exposes, in an open state, the first feeding path outside of the housing. The second cover exposes, in an open state, the second feeding path outside of the housing. When both the first cover and the second cover are opened, the first cover and the second cover are respectively in the open state relative to the housing in a mode where a second opening angle of the second cover relative to the housing is smaller than a first opening angle of the first cover relative to the housing. 1. A sheet feeding device , comprising:a housing;a first feeding path extending in a vertical direction within the housing and on which a sheet is fed;a second feeding path extending in the vertical direction within the housing and in which a lower end thereof is connected to an upper end of the first feeding path and on which a sheet is fed;a first cover an upper side of which is openable/closable relative to the housing with a lower side as a fulcrum, and, in an open state, exposes the first feeding path outside of the housing; anda second cover an upper side of which is openable/closable relative to the housing with a lower side as a fulcrum, and, in an open state, exposes the second feeding path outside of the housing, whereinwhen both the first cover and the second cover are in the open state, the first cover and the second cover are respectively in the open state relative to the housing in a mode where a second opening angle of the second cover relative to the housing is smaller than a first opening angle of the first cover relative to the housing.2. The sheet feeding device according to claim 1 , whereinwhen the first cover is in a ...

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06-02-2014 дата публикации

SHEET GUIDING DEVICE AND SHEET PROCESSING APPARATUS INCLUDING SHEET GUIDING DEVICE

Номер: US20140035224A1
Автор: ABE Yoichiro, Sato Akihiko
Принадлежит: KOMORI CORPORATION

A sheet guiding device includes: gripper bars provided to delivery chains and each having a holding portion configured to hold an end portion of a paper sheet, the gripper bars configured to transport the paper sheet along a paper sheet transporting route spaced away from a travelling route of the delivery chains; a delivery cylinder having a guide surface and configured to guide the transported paper sheet, the guide surface extending along an arc-shaped transporting route portion in the paper sheet transporting route which is located outside an arc-shaped travelling route portion in the travelling route of the delivery chains and which is formed by the holding portion travelling along the arc-shaped travelling route portion; a linear travelling route portion formed downstream of the arc-shaped travelling route portion in a travelling direction of the delivery chains; and a suction guide for guiding the paper sheet to an inner side than the linear travelling route portion, the paper sheet located in a region downstream of a shift position from the arc-shaped travelling route portion to the linear travelling route portion in a sheet transporting direction. 1. A sheet guiding device comprising:a sheet holding device provided to a transporting chain, and having a holding portion configured to hold an end portion of a sheet, the sheet holding device configured to transport the sheet along a sheet transporting route formed by the holding portion and spaced away from a travelling route of the transporting chain;a guide having a guide surface and configured to guide the transported sheet, the guide surface extending along an arc-shaped transporting route portion in the sheet transporting route which is located outside an arc-shaped travelling route portion in the travelling route of the transporting chain and which is formed by the holding portion travelling along the arc-shaped travelling route portion;a linear travelling route portion formed downstream of the arc-shaped ...

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06-02-2014 дата публикации

SHEET TRANSPORT MECHANISM AND IMAGE FORMING APPARATUS HAVING THE SAME

Номер: US20140035225A1
Автор: KONDO KAZUHISA
Принадлежит: KYOCERA Document Solutions Inc.

A sheet transport mechanism includes a pair of transport rollers and a roller pressing mechanism. The roller pressing mechanism includes one pair of first levers, one pair of second levers, and an elastic member. The one pair of first levers are supported to swing around a first swing shaft. A rotary shaft of a second roller of the pair of transport rollers is rotatably supported by a bearing aperture formed at substantially a center of the first lever. In addition, the one pair of second levers are supported to swing around the second swing shaft. Both ends of the elastic member are connected to tip ends of the second levers. The end of each second lever rotates around the second swing shaft, and presses the first lever toward the first roller of the pair of transport rollers. 1. A sheet transport mechanism comprising:a pair of transport rollers including a first roller which is rotated by a driving force from a drive source, and a second roller which is pressed against the first roller and driven to be rotated, the pair of transport rollers being configured to nip and transport a recording medium in a nip portion between the first roller and the second roller;a pair of first levers provided at both ends of a rotary shaft of the second roller, each of the pair of first levers having a bearing aperture which rotatably supports the rotary shaft, each of the pair of first levers being configured to swing in directions of contact with and separation from the first roller with a first swing shaft extending in a direction parallel to rotary shafts of the first and second rollers as a rotation center;a pair of second levers arranged to swing in the directions of contact with and separation from the first roller around second swing shafts each provided orthogonal to the associated first swing shaft and a pressing direction of the second roller and lateral to an associated one of the pair of first levers, the pair of second levers being configured to cause the first levers ...

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13-02-2014 дата публикации

SHEET FEEDING DEVICE, IMAGE FORMING DEVICE, AND METHOD FOR FEEDING SHEETS

Номер: US20140042688A1
Автор: Suzuki Akitoshi
Принадлежит:

According to one embodiment, a sheet feeding device for image forming apparatus has a first storing unit configured to store sheets therein, a second storing unit configured to store sheets therein and disposed farther from an image forming section of the image forming apparatus than the first storing unit, a feeding unit configured to feed sheets from the first and second storing units to the image forming section, and a control unit configured to control the feeding unit to feed a first sheet from the first storing unit and then to start feeding a second sheet from the second storing unit while the first sheet is being conveyed from the first storing unit. 1. A sheet feeding device for image forming apparatus comprising:a first storing unit configured to store sheets therein;a second storing unit configured to store sheets therein and disposed farther from an image forming section of the image forming apparatus than the first storing unit;a feeding unit configured to feed sheets from the first and second storing units to the image forming section; anda control unit configured to control the feeding unit to feed a first sheet from the first storing unit and then to start feeding a second sheet from the second storing unit while the first sheet is being conveyed from the first storing unit.2. The sheet feeding device according to claim 1 , whereinthe first and second sheets are sheets that are fed to the image forming section during an image forming operation executed by the image forming apparatus.3. The sheet feeding device according to claim 1 , whereinthe first sheet fed from the first storing unit is a sheet that is first fed to the image forming section during an image forming operation executed by the image forming apparatus.4. The sheet feeding device according to claim 1 , whereinthe first sheet fed from the first storing unit is a sheet that is fed to the image forming section after a predetermined number of sheets have been fed from the first storing unit ...

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13-02-2014 дата публикации

SHEET CONVEYING ROLLER AND IMAGE FORMING APPARATUS

Номер: US20140042691A1
Принадлежит:

The inventive sheet conveying roller includes a plurality of linear projections () provided on an outer peripheral surface () of a roller body () of an elastic material and each having a generally right-angled triangular cross section which includes a hypotenuse edge () and an adjoining edge () provided on a forward side and on a rearward side, respectively, with respect to a roller body rotation direction, the adjoining edge () aligning with a line () perpendicular to a center axis (L) of the roller body (). The linear projections () are rounded with the hypotenuse edges () and the adjoining edges () thereof connected to each other by curves () as seen in section, and provided integrally with the roller body () to be equidistantly arranged on the outer peripheral surface of the roller body. 1. A sheet conveying roller comprising:a tubular roller body unitarily formed of an elastic material and having a plurality of linear projections circumferentially equidistantly provided on an outer peripheral surface thereof as extending axially of the roller body;wherein the linear projections each have a generally right-angled triangular cross section taken perpendicularly to a center axis of the roller body, the generally right-angled triangular cross section including a hypotenuse edge and an adjoining edge located on a forward side and on a rearward side, respectively, with respect to a circumferential roller body rotation direction, the adjoining edge aligning with a line perpendicular to the center axis of the roller body;wherein a corner defined between the hypotenuse edge and the adjoining edge of each of the linear projections is rounded as seen in section;wherein a corner defined between the hypotenuse edge of one of each two adjacent linear projections and the adjoining edge of the other linear projection is rounded as seen in section.2. The sheet conveying roller according to claim 1 , wherein an open angle defined between each two adjacent linear projections about ...

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27-02-2014 дата публикации

IMAGE READING APPARATUS

Номер: US20140054839A1
Принадлежит: PFU LIMITED

There are provided an image reading apparatus which can effectively detect sound which is generated when a jam has occurred for a plurality of types of jams. The image reading apparatus includes a separator, an image reader for reading an image from a paper, a conveying module for conveying a paper separated by the separator to the image reader, a side wall provided at a side of a conveyance path of the paper, a sound signal generator, provided with a sound detector between the separator and the conveying module and near the side wall, for generating a sound signal corresponding to a sound generated by the paper during conveyance, and a jam detector for determining whether a jam has occurred based on the sound signal. 1. An image reading apparatus comprising:a separator;an image reader for reading an image from a paper;a conveying module for conveying a paper separated by the separator to the image reader;a side wall provided at a side of a conveyance path of the paper;a sound signal generator, provided with a sound detector between the separator and the conveying module and near the side wall, for generating a sound signal corresponding to a sound generated by the paper during conveyance of the paper; anda jam detector for determining whether a jam has occurred based on the sound signal.2. The image reading apparatus according to claim 1 , wherein the sound detector is provided in a range in which the paper is placed on a paper tray in a direction which perpendicularly intersects a paper conveyance direction.3. The image reading apparatus according to claim 1 , wherein the sound detector is provided in a range in which the paper is placed on a paper tray within 50 mm from the side wall in a direction which perpendicularly intersects a paper conveyance direction. This application is based upon and claims the benefit of priority of prior Japanese Patent Application No. 2012-185219, filed on Aug. 24, 2012, the entire contents of which are incorporated herein by ...

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27-02-2014 дата публикации

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

Номер: US20140054841A1
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium which can suppress erroneous detection of the occurrence of a jam. The paper conveying apparatus includes a sound signal generator, provided with a sound detector near a conveyance path of paper, for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper, a sound jam detector for determining whether a jam has occurred based on a predetermined sound signal, and a control module for performing an abnormal processing when the sound jam detector determines that the jam has occurred and the predetermined sound signal is not generated at a predetermined timing, and determining that the jam has not occurred and not performing the abnormal processing when the sound jam detector determines that the jam has occurred and the predetermined sound signal is generated at the predetermined timing. 1. A paper conveying apparatus comprising:a sound signal generator, provided with a sound detector near a conveyance path of paper, for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper;a sound jam detector for determining whether a jam has occurred based on a predetermined sound signal; anda control module for performing an abnormal processing when the sound jam detector determines that the jam has occurred and the predetermined sound signal is not generated at a predetermined timing, and determining that the jam has not occurred and not performing the abnormal processing when the sound jam detector determines that the jam has occurred and the predetermined sound signal is generated at the predetermined timing.2. The paper conveying apparatus according to claim 1 , further comprising:an ultrasonic detector, provided near the conveyance path of a paper, for detecting an ultrasonic wave which passes through a paper and outputting an ultrasonic signal; anda multifeed detector ...

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27-02-2014 дата публикации

PAPER CONVEYING APPARATUS

Номер: US20140054844A1
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus which can effectively detect a sound which is generated when a jam occurs for various types of jams. The paper conveying apparatus includes a side guide, arranged to be movable in a direction which is perpendicular to a conveyance direction of a paper placed on a paper tray, for restricting a width direction of the paper, a sound signal generator, provided at the side guide so that a sound detector moves in accordance with movement of the side guide, for generating a sound signal corresponding to a sound generated by the paper during conveyance of the paper, and a sound jam detector for determining whether a jam has occurred based on the sound signal. 1. A paper conveying apparatus comprising:a side guide, arranged to be movable in a direction which is perpendicular to a conveyance direction of a paper placed on a paper tray, for restricting a width direction of the paper;a sound signal generator, provided at the side guide so that a sound detector moves in accordance with movement of the side guide, for generating a sound signal corresponding to a sound generated by the paper during conveyance of the paper; anda sound jam detector for determining whether a jam has occurred based on the sound signal.2. The paper conveying apparatus according to claim 1 , further comprising a separator for separating a stack of papers for conveyance claim 1 , whereinthe side guide has a projecting part which projects towards a downstream side in a paper conveyance direction beyond the separator, andthe sound detector is arranged at the projecting part beyond the side guide in the paper conveyance direction.3. The paper conveying apparatus according to claim 1 , further comprising a separator which separates a stack of papers for conveyance claim 1 , whereinthe sound detector is provided integrally with the side guide arranged at an upstream side in a paper conveyance direction of the separator. This application is based upon and claims ...

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27-02-2014 дата публикации

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

Номер: US20140054845A1
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can suppress erroneous detection of a jam by sound due to the sound which a paper which has a wrinkle generates. The paper conveying apparatus includes a separator, a sound signal generator, provided with a sound detector provided at a downstream side of the separator, for generating a sound signal in accordance with the sound generated by a paper during conveyance, a sound jam detector for determining whether a jam has occurred based on the sound signal, and a wrinkle detector, provided at a downstream side of the separator, for detecting optically a wrinkle of a paper, wherein the sound jam detector changes the method of detection of the jam when the wrinkle detector detects a wrinkle of a paper. 1. A paper conveying apparatus comprising:a separator;a sound signal generator, provided with a sound detector provided at a downstream side of the separator in a paper conveyance direction, for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper;a sound jam detector for determining whether a jam has occurred based on the sound signal; anda wrinkle detector, provided at a downstream side of the separator in the paper conveyance direction, for optically detecting a wrinkle of the paper,wherein the sound jam detector changes the method of detection of the jam when the wrinkle detector detects the wrinkle of the paper.2. The paper conveying apparatus according to claim 1 , wherein the wrinkle detector is provided at an upstream side of the sound detector in the paper conveyance direction.3. The paper conveying apparatus according to claim 1 , whereinthe wrinkle detector has an optical sensor, andthe optical sensor optically detects a wrinkle of a paper and reads an image from the paper.4. The paper conveying apparatus according to claim 1 , wherein the wrinkle detector includes an equal magnification ...

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27-02-2014 дата публикации

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

Номер: US20140054850A1
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can suppress erroneous detection of an occurrence of a jam by sound due to the sound generated along with conveyance of a paper. The paper conveying apparatus includes a first sound signal generator for generating a first sound signal corresponding to a sound generated by a paper during conveyance, at least a part of the first sound signal generator is provided at one end of a conveyance path of the paper, a second sound signal generator for generating a second sound signal corresponding to the sound, at least a part of the second sound signal generator is provided at the other end of the conveyance path, and a sound jam detector for determining whether a jam has occurred based on a difference of the first sound signal and the second sound signal. 1. A paper conveying apparatus comprising:a first sound signal generator for generating a first sound signal corresponding to a sound generated by a paper during conveyance of the paper, at least a part of the first sound signal generator is provided at one end of a conveyance path of the paper in the direction which perpendicularly intersects the paper conveyance direction;a second sound signal generator for generating a second sound signal corresponding to the sound generated by the paper during conveyance of the paper, at least a part of the second sound signal generator is provided at the other end of the conveyance path of the paper in the direction which perpendicularly intersects the paper conveyance direction; anda sound jam detector for determining whether a jam has occurred based on a difference of the first sound signal and the second sound signal.2. The paper conveying apparatus according to claim 1 , wherein the sound jam detector generates a third sound signal from which components of sound generated by a wrinkle of a paper are substantially removed based on a difference between the first ...

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27-02-2014 дата публикации

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

Номер: US20140054851A1
Принадлежит: PFU LIMITED

There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium which can determine whether a jam has occurred based on the sound which is generated by a paper during conveyance at a low cost. The paper conveying apparatus includes an ultrasonic detector, provided near a conveyance path of a paper, for detecting an ultrasonic wave which passes through paper and outputting an ultrasonic signal, a multifeed detector for determining whether multifeed of papers has occurred based on a component of a first frequency band in the ultrasonic signal, and a sound jam detector for determining whether a jam has occurred based on a component of a second frequency band lower than the first frequency band in the ultrasonic signal. 1. A paper conveying apparatus comprising:an ultrasonic detector, provided near a conveyance path of a paper, for detecting an ultrasonic wave which passes through paper and outputting an ultrasonic signal;a multifeed detector for determining whether multifeed of papers has occurred based on a component of a first frequency band in the ultrasonic signal; anda sound jam detector for determining whether a jam has occurred based on a component of a second frequency band lower than the first frequency band in the ultrasonic signal.2. The paper conveying apparatus according to claim 1 , further comprising a filter for separating the component of the first frequency band and the component of the second frequency band from the ultrasonic signal.3. The paper conveying apparatus according to claim 2 , wherein the filter includes a first filter for passing the component of the first frequency band in the ultrasonic signal claim 2 , a second filter for passing the component of the second frequency band in the ultrasonic signal claim 2 , and an amplifier for amplifying a signal which either of the first filter and the second filter outputs.4. The paper conveying apparatus according to claim 3 , wherein the ...

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27-02-2014 дата публикации

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

Номер: US20140054852A1
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 regardless of the conveyance speed of the paper. The paper conveying apparatus includes a sound signal generator for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper, a corrected signal generator for correcting the sound signal to generate a corrected signal, and a sound jam detector for determining whether a jam has occurred based on the corrected signal, wherein the corrected signal generator sets a method of correcting the sound signal in accordance with conveyance speed information. 1. A paper conveying apparatus comprising:a sound signal generator for generating a sound signal corresponding to a sound generated by a paper during conveyance of the paper;a corrected signal generator for correcting the sound signal to generate a corrected signal; anda sound jam detector for determining whether a jam has occurred based on the corrected signal,wherein the corrected signal generator sets a method of correcting the sound signal in accordance with conveyance speed information.2. The paper conveying apparatus according to claim 1 , wherein the corrected signal generator extracts a shape of the sound signal and uses the extracted shape as the corrected signal.3. The paper conveying apparatus according to claim 2 , whereinthe sound signal generator generates the sound signal by sampling a sound generated by the paper during conveyance of the paper by a predetermined sampling rate, andthe corrected signal generator sets the predetermined sampling rate in accordance with the conveyance speed information.4. The paper conveying apparatus according to claim 2 , wherein the corrected signal generator extracts the shape by making a peak value of the sound signal attenuate by a predetermined attenuation rate and sets the predetermined attenuation ...

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