Abstract: This invention is related to a feeder for transporting a print medium from a tray along a U-shaped transporting path. The feeder includes a movement member coupled to a feeding roller. The movement member includes a first portion located at a position such that the print medium makes contact with the first portion when a transporting roller and the feeding roller simultaneously make contact with the print medium. The first portion receives a force from the print medium when the first print medium makes contact with the first portion. The movement member moves the feeding roller by utilizing the force such that a distance between the feeding roller and the support surface of the tray increases.

Abstract: A sheet feeding device to feed a sheet in a sheet stack into a sheet feeding path is provided. the sheet feeding device includes a feed roller configured to contact the sheet stack and feed the sheet in a feeding direction, a guide member, having a guide surface, which is configured to contact a side of the sheet fed by the feeding roller, to guide the sheet being fed along a guiding direction, and a shifting unit to shift the feed roller in a direction toward the guide surface before the feed roller is rotated.

Abstract: A sheet feeder device includes a sheet accommodating section for accommodating a stack of sheets. There is a sheet pick-up section which can operate to feed each of the sheets toward a sheet feed path when abutting against the stack. A sheet separating section is also provided and it has a feed roller and a reverse roller which are located downstream of the sheet pick-up section and abut against each other. The reverse roller is supported on a rotation support shaft in a manner to allow the reverse roller to be fitted around and removed from the rotation support. The rotation support has opposite ends supported by a device body.

Abstract: The objective of this invention is to prevent the diagonal movement of a print medium regardless of a change of print medium feed conditions, and accurately convey a print medium even when increasing the throughput. To accomplish this, it is controlled to generate a pulse signal so that a print medium conveyance speed detected by an encoder comes close to a target speed. The duty of the generated pulse signal is calculated every predetermined timing. When a sensor detects the leading end of the print medium, the duty of the pulse signal input to a feed motor is stored in a memory. It is determined whether the difference between the calculated duty and the stored duty has exceeded a predetermined value. If the difference has exceeded the predetermined value, supply of the pulse signal stops. When supply of the pulse stops, a conveyance roller is driven.

Abstract: A sheet feeding apparatus capable of obtaining a sufficient conveying force for pulling back double-fed overlapping sheets to a stacking tray side. A sheet feeding member feeds sheets incoming from a stacking tray which stacks the sheets into a conveying pass. A separating member separates the sheets fed to the conveying pass by the sheet feeding member one by one. A double feed detection sensor generates an output for detecting double feed of sheets fed to the conveying pass. A rotatable member contacts the fed sheet. A driving unit rotationally drives at least the rotatable member in a rotational direction for reverse feeding of sheets. A control unit controls the driving unit when the double feed of sheets is detected based on the output of the double feed detection sensor, such that the rotatable member is rotationally driven in the rotational direction for reverse feeding of sheets.

Abstract: In a printing system in which the print media sheets are alternately fed from the same stack in the same tray by two sheet feeders at opposite sides into different sheet paths, at least one of the sheet feeders is repositionable towards and away from the other for feeding different size sheets, and the connecting sheet path is repositionable with the repositioning of the sheet feeder. The repositioning of the sheet feeder and its associated sheet path may be automatic in coordination with the normal resetting of a tray stack edge guide with the loading of different size sheets into the tray. The enhanced rate sheet feeding may be for a dual print engine printing system and/or selectably common or reversed sheet facing. Alternating coordinated lifting of a nudger roll of one sheet feeder with operation of the opposing sheet feeder, and retard nips spaced from the stack, may be provided.

Abstract: A paper feeding apparatus including a paper pickup roller assembly, a paper conveying roller assembly, a one-way driving assembly, and a reverse driving assembly is provided. The one-way driving and the reverse driving assembly are connected to a driving device, such as a motor, wherein the one-way driving assembly is engaged with the paper pickup roller assembly only in one direction to drive the paper pickup roller assembly forward as the driving device rotates forward and stop driving the paper pickup roller assembly as the driving device rotates backward, and the reverse driving assembly is provided for driving the paper conveying roller assembly to constantly rotate forward for conveying the paper sheet to move forward no matter whether the driving device rotates forward or backward.

Abstract: Printer (1) has a pivotally mounted autocompensating system (19) mounted at an intermediate position in paper guide (17). That system (19) is driven by a motor (40)through a slip drive (70, 72, 74). The motor also drives paper feed system (15). When the motor turns in a direction to feed by system (15), the intermediate system is moved away from the paper guide. When a sheet reaches a position to be fed by the intermediate system, the motor is reversed, and the intermediate system pivots against the paper for moving it further through the paper guide.

Abstract: A sheet feeding device including: a sheet feeding roller for sending sheets out one-by-one; a sheet stacking section in which a plurality of sheets can be stacked, and which pushes a sheet against the sheet feeding roller; an upper guide member able to move between a guiding position at which, at a time of double-sided printing, the upper guide member re-feeds to the image forming section an inverted sheet which is sent-in by a sheet re-feeding section, and a withdrawn position, at which sheet feeding of the sheet stacking section is possible; and a lower guide member which is rotatable and which abuts leading ends of sheets stacked in the sheet stacking section, wherein a guide path, which guides a sheet which is re-fed at the time of double-sided printing, is formed due to the upper guide member and the lower guide member rotating interlockingly.

Abstract: The present invention relates to a media separating apparatus and method for an automatic media dispenser.

Abstract: When two or more sheets of paper P are fed in an overlapped manner to a nip where a paper feed roller and a separation roller are in pressure contact with each other, a sub-CPU of a sheet feeding unit rotates the paper feed roller in a paper feeding direction and rotates the separation roller in a direction opposite to the feeding direction, so as to separate overlapping, and thereafter, it rotates the paper feed roller and the separation roller again in the feeding direction.

Abstract: A replaceable unit includes a feeding roller that feeds a sheet from a sheet accommodation portion that accommodates the sheet; a conveyance roller that conveys the sheet fed by the feeding roller downstream; a first frame body that supports the feeding roller and the conveyance roller so as to be rotatable; and a second frame body that supports the first frame body so as to be movable and is removably mounted at a position at which the feeding roller can touch against the sheet accommodated at the sheet accommodation portion.

Abstract: A sheet supplying device, which supplies a sheet to an image forming section, has a sheet feeding roller, a sheet stacking section, and a guiding member. The sheet feeding roller sends sheets out one-by-one. The sheet stacking section can be stacked with plural sheets and pushes a sheet against the sheet feeding roller. The guiding member is able to move between a guiding position and a withdrawn position. At the guiding position, at a time of double-sided printing, the guiding member re-supplies to the image forming section an inverted sheet which is sent-in by a sheet re-supplying section. At the withdrawn position, the guiding member is moved toward the sheet feeding roller and feeding of the sheet of the sheet stacking section is possible.

Abstract: A bill discriminating and counting apparatus in which a plurality of bills with different sizes are filled between side hopper members and fed into a transport path by a feeding mechanism. The feeding mechanism comprises a plurality of rollers disposed in a bilaterally symmetrical state. The plurality of rollers are arranged so that, when a distance between the side hopper members is adjusted according to the longitudinal dimension of a bill with the maximum dimension in the longitudinal direction and a bill with the minimum dimension in the longitudinal direction is disposed at a position where the bill is brought into contact with one of the side hopper members, at least a part of the rollers installed on the opposite side of the side hopper member where the bill is brought into contact therewith is brought into contact with the bill. Also, the feeding mechanism comprises a guide member guiding the bill to the inlet of the transport path.

Abstract: A paper-feeding mechanism of an automatic document feeder includes a pick-up module, a supporting module and a paper stopping module. The pick-up module is used for picking an uppermost paper sheet from the stack of paper sheets and transporting the uppermost paper sheet into a passageway inside the automatic document feeder. The supporting module supports the pick-up module and is rotated to either ascend or descend the pick-up module, wherein the supporting module has a sustaining part on a sidewall thereof. When the supporting module and the pick-up module are downwardly rotated, the stopping plate is moved vertically to a paper-feeding position for allowing the uppermost paper sheet to be transported into the passageway. When the supporting module and the pick-up module are upwardly rotated, the stopping plate is moved vertically to a paper-stopping position for hindering the uppermost paper sheet from being transported into the passageway.

Abstract: An image reader includes a document table (2) having a platen plate (3) placed on an upper surface of the document table (2); a document table cover (4) supported at an upper end of the document table (2) in a pivotable manner; a first image sensor (5) which is provided in the document table (2) and is actuated in parallel with the platen plate (3) by means of a sensor drive mechanism (6); a document moving mechanism for causing the document to move along a document transport path (9) formed in the document table cover (4); and a second image sensor (20) fixed to the document table cover (4) so as to be situated at a position above the document transport path (9). A track of the document, which moves through the document transport path (9), passes through a focal point (scan point) of the first image sensor (5) achieved when the first image sensor (5) is situated at a standby position.

Abstract: A sheet discharge roller assembly for a sheet feeding apparatus includes an upper cylindrical exit roller mounted on a rotatable drive shaft and a lower cylindrical pinch roller having a wheel attached to one end. The pinch roller has a length that is longer than the length of the exit roller and is moveable into contact with the exit roller so as to form a nip for gripping a print media to be discharged. The wheel has a diameter that is larger than that of the pinch roller and an outer circumferential edge composed of a plurality of protruding contact portions arranged in a radial pattern. The wheel is positioned so that the wheel can contact the media sheet being gripped and cause the sheet to deform temporarily, thereby making the sheet more rigid.

Abstract: A document feeder for multifunction printers or scanners offers high reliability and speedy paper-picking, -separating and -feeding functions. It comprises a picking module, a separating module and a feeding module. Since the three modules take turns to deliver paper, the paper can be picked at a lower speed, separated at a medium speed and then fed at a high speed. In addition, the separating module comprises a clutch. When the paper was fed by the feeding module, the clutch is activated to provide an interval between papers and to prevent papers from plucking.

Abstract: A driven roller operates together with a driving roller to form a nip area for a medium to be transported. The driven roller includes a roller shaft and a roller element having a through hole through which the roller shaft extends. A contact position at which the roller shaft and an inner surface of the through hole are in contact with each other is located within the nip area.

Abstract: A paper feeder including a pickup roller, a separation roller, a separation pad, a pressing device, and a separation plate is provided. The separation roller is located downstream the pickup roller. The separation pad leaning on the separation roller has a curved separation portion. The pressing device has a spherical node. The separation plate has a cavity on a back thereof for allocating the spherical node, and it also has a V-shaped slit on a front thereof for pressing the separation pad on the separation roller. As the spherical node is pressed on the separation pad, the V-shaped slit is guided to parallel to the shaft of the separation roller so as to have the separation pad precisely assembled on the surface of the separation roller.

Abstract: This invention relates to a recording apparatus, comprising an opening delivering a recording medium after completion of recording and a cover capable of closing the opening in moving pivotally and a holding rib formed at the cover for holding a rear end as well as both sides of the delivered recording medium. The holding rib comes to be exposed when the cover is opened.

Abstract: The present invention provides an automatic document feeder comprising a pick up roller module, a drive roller module, an ejecting idle roller module and a main belt. A main driving roller of the driving roller module drives the main belt to transport the document, and the main belt encircles the main driving roller and a first ejecting idle roller of the ejecting idle roller module.

Abstract: A conveying roller and a paper expelling roller provided upstream and downstream, respectively, of a recording portion in a conveyance direction are connected via an idler gear so as to be able to perform drive transmission, a rotation drive amount of the idler gear is detected, ends of a recording medium in the conveyance direction are detected, driving of a conveying motor is controlled based on detection signals of the rotation drive amount of the idler gear and the ends of the recording medium, and a control constant is made variable according to a position of the recording medium in the conveyance direction.

Abstract: A paper guide up unit pivotally supporting a transport driven roller making contact with a transport driving roller is provided so as to be able to be displaced by the rotation of cams. The angle ? made by a straight line passing the rotation axis line position of the transport driving roller and the rotation axis line position of the transport driven roller when viewed from the paper transport pathway side and a straight perpendicular to the paper transport direction is changed by the displacement of the paper guide up unit. Control means for controlling the displacement operation of the paper guide up unit reduces the angle ? before the paper back end is passed through the nip point of the transport driving roller and the transport driven roller.

Abstract: A printing system sheet feeder apparatus and method is provided. The printing system feeder includes a front nudger roll positioned near the leading edge of the top sheet of a sheet stack and the front nudger roll is capable of advancing the top sheet. In addition, the printing system sheet feeder includes a separation nip aligned with the front nudger roll, the front nudger roll being capable of receiving the top sheet advanced by the front nudger roll and advancing the top sheet in a direction away from the front nudger. A rear nudger roll is positioned near the trailing edge of the top sheet and is capable of advancing the sheet directly below the top sheet while the top sheet is being advanced by the front nudger roll and/or separation nip, thereby increasing the overall sheet feeding rate to the printing system.

Abstract: A recording apparatus includes a recording head for effecting recording on a recording material in accordance with recording information; first feeding means including a grip roller and a pinch roller disposed downstream of the recording head with respect to a recording material feeding direction; second feeding means including a grip roller and a pinch roller disposed upstream of the recording head with respect to the recording material feeding direction, wherein the recording device effects recording on a recording material fed by the first feeding means and the second feeding means, and wherein the first feeding means and the second feeding means have recording material feeding speeds which are different from each other; and a one-way clutch provided for the grip roller of one of the first and second feeding means which provides a lower recording material feeding speed, the one-way clutch being idly rotatable by a tension of the recording material.

Abstract: A feeding roller is operable to pick up a stacked first medium and to feed the picked up first medium. A medium guide is adapted to guide the fed first medium. A pair of transporting rollers is operable to transport the glided first medium. The feeding roller is disposed at one side deviated from the center of the medium guiding section in a main scanning direction which is a widthwise direction of the fed first medium. The medium guiding section has a first guide section and a second guide section having path for guiding the fed first medium different from that of the first guide section, the first guide section and the second guide section arranged in the main scanning direction. The first guide section is disposed at the one side where the feeding roller is deviated in the main scanning direction. The second guide section is disposed at the other side in the main scanning direction.

Abstract: An automatic document transportation device includes a shutter, a stopper and a shutter releasing mechanism. The shutter is provided at upstream of a document feed roller and suspended from a cover under a freely swinging state. The stopper is provided on a pickup arm, stops a swing of the shutter so that the shutter restricts a position of a leading edge of an original document on a document tray when the pickup arm is under a standby state, and releases the stop of the shutter when the pickup arm operates in a direction to make contact with the original document. The shutter releasing mechanism moves the pickup arm under the standby state in the direction to make contact with the original document.

Abstract: A paper shift apparatus, an array ink-jet printer having the paper shift apparatus, and an array printer printing method. The array ink-jet printer includes a frame, a print head supported by the frame and including a plurality of nozzles arranged in a width direction of a paper sheet, a feeding roller to rotate in opposite directions to advance and/or retreat the paper sheet toward and/or from the print head and supported by the frame to be shifted toward an axis direction so as to shift the paper sheet toward a direction orthogonal to a direction through which the paper sheet advances, and a feeding roller shifting unit to shift the feeding roller toward the axis direction.

Abstract: A feeding device includes a feeding roller and a pair of transport rollers. The feeding roller picks up stacked recording medium and feeds the recording medium downstream direction. The pair of transport rollers transport the fed recording medium to a recording section. The feeding roller is provided so as to be capable of contacting a separating unit that separates the overlapped recording medium with plural. Between a contact point of the feeding roller and the separating unit and a nip point of the pair of transport rollers, a first tangent line does not intersect a second tangent line. The first tangent line is situated at the contact point of the feeding roller and the separating unit. The second tangent line is situated at the nip point of the pair of transport rollers.

Abstract: An automatic document processor for automatically conveying documents includes: a document tray; a document feed path for introducing and feeding originals from the document tray into the interior of a machine; a document pickup roller assembly for picking up originals, page by page, from the document tray; and a document drive roller for conveying originals, and is constructed such that the pickup roller assembly includes two units of document pickup rollers and a pickup roller selecting mechanism for selecting the document pickup rollers to be operated, in accordance with the document size is provided.

Abstract: An automatic document feeder for an image forming apparatus comprising a separation roller for separately carrying a plurality of paper sheets picked by a pickup roller, a feeding roller for carrying the paper sheets, a discharge roller for discharging the scanned paper sheets, and a transmission unit for transmitting a driving force from a driving motor. The transmission unit comprises an internal roller installed on the same axis as the feeding roller, the internal roller having an internal gear, a swing arm rotatably attached to a bracket, the bracket being inserted into the internal roller, and a swing gear rotatably installed on one side of the swing arm, the swing gear being engaged with the internal gear for rotating the internal roller.

Abstract: Provided a paper feeding apparatus used with a printer includes a pickup roller which draws out a paper stacked in a cassette and conveys the paper to a printer, a conveying roller which conveys the drawn-out paper onto a paper feeding route, and a feeding roller which feeds the paper conveyed by the conveying roller to a printing portion. The conveying roller is driven when the paper supplied by the pickup roller is conveyed to the feeding roller, and after the paper is conveyed to the feeding roller, the conveying roller is isolated from the paper feeding route.

Abstract: An automatic document feeder is provided with the first transport device and the second transport device for feeding an original at a reading position to read the original, and a curved reading path disposed between the first transport device and second transport device. The automatic document feeder is also provided with a reading guide unit including the first guide member disposed at an upstream side of the reading position in an original feeding direction for guiding the original to the reading position, the second guide member disposed at a downstream side of the reading position in the original feeding direction for guiding the original from the reading position, a flexible transparent film member extending between the first guide member and the second guide member for forming the reading path. The reading guide unit is detachably and rotatably supported on an apparatus frame of the automatic document feeder.

Abstract: An image forming device capable of distinguishing the type of paper, and a driving controlling method thereof. The an image forming device includes a paper conveyance path disposed in a body of the image forming device, to guide an upside and an underside of the paper which is conveyed from a paper feeding apparatus to an image forming portion; a feeding roller disposed in the paper conveyance path, to convey the paper from the paper feeding apparatus to the image forming portion; and a paper type distinguishing sensor disposed in the paper conveyance path upstream with respect to the feeding roller, to distinguish the type of the paper and output a distinguishing signal. Accordingly, before the paper enters into the image forming portion, the distinguishing signal is output from the paper type distinguishing sensor as the feeding roller is rotated in a reverse direction to align a front end of the paper in parallel with the feeding roller.

Abstract: A drive apparatus of an ink jet printer using a single motor in which convey failure does not occur by preventing power from being transferred to the convey roller when paper is fed by the feed roller. In an ink jet printer where a sheet of paper stacked in a paper feed cassette is picked up by a pickup roller, conveyed by a convey roller and a pinch roller, and then printed by a printer head while being line-fed by the feed roller, the drive apparatus includes a first gear train disposed on a feed roller shaft with the feed roller assembled to swing within a predetermined angle on the feed roller shaft in a feed roller shaft rotation direction, a second gear train disposed on a frame of the ink jet printer to be in contact with the first gear train, and a third gear train with a front end gear connected with the rear end gear of the second gear train and a rear end gear coaxially disposed on a convey roller shaft with the convey roller assembled.

Abstract: A media conveying mechanism located in a media data recorder for conveying media mainly includes a driving motor to provide driving power needed. A first clutch to control the operation of a pickup roller. A second clutch to control rotation direction of an intermediate roller, a sensor to detect the conveying process of the media and control the operation of the second clutch. By deploying the two clutches, conveying quantity of the media in a unit time period can be effectively improved.

Abstract: In the case of a dispensing unit for dispensing individual sheets, in particular banknotes, having a box-like container for accommodating a sheet stack, which can be moved with a stack end surface in the direction of the front end wall of the container, having an accommodating module for accommodating the container, and having a withdrawal device for withdrawing individual sheets from the stack end surface through a dispensing opening of the container, the withdrawl device having a drivable withdrawal roll, which is intended for butting against the stack end surface, a transporting roll, which is arranged parallel to the withdrawal roll and can be driven in the same direction as the latter, and a counter-rotating roll, which is assigned to the transporting roll, can be driven in the opposite direction to the latter and forms a nip with the transporting roll, at least the withdrawal roll is arranged within the container.

Abstract: To suppress vibration and percussive noises generally created by a separation pad and pressure spring in a sheet feeding apparatus, a sheet feeding tray stacks and maintains sheets, a sheet feeding roller launches sheets stacked on the sheet feeding tray, and a separation pad separates sheets from each other. In particular, when feeding a last sheet of one job, the sheet feeding roller stops rotating while pinching an uppermost sheet of a next job in cooperation with the separation pad.

Abstract: A sheet feeding apparatus is formed of a sheet supply device for feeding sheets drawn out from a sheet supply tray, a separating device for separating the sheets drawn out from the sheet supply tray, a transport device for transporting the sheets downstream, a transport path formed between the sheet supply device and the transport device and having first and second transport paths, and follower rotating bodies. The first transport path guides sheets fed from the sheets supply device in a substantially tangential direction of the nipping point, and the second transport path guides sheets from the first transport path toward the transport device after bending from the substantially tangential direction to the separating device. The follow rotating bodies are protrudingly arranged from the separating device in the transport path, between a curved portion extending from the first transport path to the second transport path and the nipping point.

Abstract: A sheet take-out apparatus includes a pickup roller to send out sheets, a take-out roller to take out sheets sent out by the pickup roller, a separation roller pressure contacting the take-out roller to separate taken out sheets one by one by applying revolving torque in the direction reverse to the sheet take-out direction, a swing arm that is supporting the separation roller and swings according to change in the diameter of the separation roller, a detector to detect the position of the swing arm, and a controller to control revolving torque applied to the separation roller according to the detection result of the detector.

Abstract: A sheet material feeder includes a sheet material holder for holding a pile of sheet material, a rotating drum for transporting the sheet material from the pile, and an acceleration device receiving the sheet material from the rotating drum at a first speed and releasing the sheet material at a second speed greater than the first speed. Also disclosed is a sheet material feeder with a sheet material holder for holding a pile of sheet material; and a rotating drum for transporting the sheet material from the pile, the rotating drum including at least one sucker rotating with the drum for contacting the sheet material.

Abstract: The invention is to provide a paper feeding apparatus and a driving method thereof for an office machine. The office machine includes a paper accommodating device and a paper processing apparatus. The paper accommodating device is for accommodating paper sheets to be processed by the paper processing apparatus. The paper feeding apparatus is for feeding the paper sheets accommodated by the paper accommodating device one by one to the paper processing apparatus. The paper feeding apparatus includes a pickup roller, a delivery roller, a pair of feeding rollers, a detection device, a transmission gear assembly, a drive motor and a controller. The detection device detects a leading edge and a trailing edge of the paper sheet delivered by the paper feeding apparatus. In particular, the paper feeding apparatus is a simple-configuration, light-weight and compact component and capable of feeding paper sheets accurately.

Abstract: A document feeding apparatus for use with a document processing device. The document feeding apparatus comprises an input receptacle adapted to receive a stack of documents and at least one feeding wheel adapted to strip documents, one at a time, from the stack of documents. The feeding wheel includes a moveable insert having a high friction surface adapted to engage and to advance each of the documents.

Abstract: A sheet transfer apparatus includes a first roller, a second roller and a power train. The first roller is configured to be rotatably driven at a first surface speed. The second roller is spaced from the first roller such that the first roller and the second roller are configured to simultaneously engage a media sheet. The second roller is configured to be driven at a second surface speed greater than the first surface speed. The power train delivers power to the first roller to rotatably drive the first roller. The power train includes a first gear coupled to the first roller, a second gear and a third gear. The third gear is movable between a first position in which the third gear is in power transmitting engagement with both the first gear and the second gear and a second position in which the third gear is out of power transmitting engagement with the second gear.

Abstract: The present invention relates to a sheet material conveying apparatus comprising first conveying means for conveying a sheet, material second conveying means for conveying, on a downstream side in a sheet material conveyance direction of the first conveying means, the sheet material and a plurality of guide members for forming a curving conveyance route located between the first conveying means and the second conveying means. The guide member forms the curving conveyance route located on an inner side among the guide members is a rotary body rotatably, which is arranged with no pressing member for pressing the sheet material to the rotary body.

Abstract: The present invention relates to an automatic document feeder for manipulating and scanning multiple documents, sheets, cards and sheet-like substrates. The present invention is especially suitable for automatic feeding and scanning of a stack of business cards or other material, which is sufficiently rigid. In an embodiment, a card feeder includes a vertically movable pickup roller, a backstop incline, and output rollers. The card feeder uses the pickup roller to separate and push the top card of the stack against a backstop incline. The card slides upwards along the incline until it engages the output rollers, which move the card past a scanner. The present invention relates to embodiments, which transfer an output card to a card scanner using output rollers to push the card toward scanner input rollers. The output rollers and scanner input rollers can be synchronized or the output rollers can freely rotate in one direction after power to a motor driving rotation is cut off.

Abstract: In the case of a dispensing unit for dispensing individual sheets, in particular banknotes, having a box-like container (14) for accommodating a sheet stack (24), which can be moved with a stack end surface (40) in the direction of the front end wall (20) of the container (14), having an accommodating module (12) for accommodating the container (14), and having a withdrawal device for withdrawing individual sheets from the stack end surface (40) through a dispensing opening (38) of the container (14), the withdrawal device having a drivable withdrawal roll (30), which is intended for butting against the stack end surface (40), a transporting roll (46), which is arranged parallel to the withdrawal roll and can be driven in the same direction as the latter, and a counter-rotating roll (42), which is assigned to the transporting roll, can be driven in the opposite direction to the latter and forms a nip with the transporting roll (46), at least the withdrawal roll (30) is arranged within the container (14).

Abstract: The invention is to provide a paper feeding apparatus and a driving method thereof for an office machine. The office machine includes a paper accommodating device and a paper processing apparatus. The paper accommodating device is for accommodating paper sheets to be processed by the paper processing apparatus. The paper feeding apparatus is for feeding the paper sheets accommodated by the paper accommodating device one by one to the paper processing apparatus. The paper feeding apparatus includes a pickup roller, a delivery roller, a pair of feeding rollers, a detection device, a transmission gear assembly, a drive motor and a controller. The detection device detects a leading edge and a trailing edge of the paper sheet delivered by the paper feeding apparatus. In particular, the paper feeding apparatus is a simple-configuration, light-weight and compact component and capable of feeding paper sheets accurately.

Abstract: Provided a paper feeding apparatus used with a printer includes a pickup roller which draws out a paper stacked in a cassette and conveys the paper to a printer, a conveying roller which conveys the drawn-out paper onto a paper feeding route, and a feeding roller which feeds the paper conveyed by the conveying roller to a printing portion. The conveying roller is driven when the paper supplied by the pickup roller is conveyed to the feeding roller, and after the paper is conveyed to the feeding roller, the conveying roller is isolated from the paper feeding route.