Class / Patent application number | Description | Number of patent applications / Date published |
271121000 | With means to restrain feed of next sheet | 66 |
20080197560 | Paper Feeding Device - A paper feeding device comprises a cover, a roller frame and at least one paper blocking unit. The roller frame has two side walls. The paper blocking unit is placed beside the side wall, having a projection mounted on the side wall of the roller frame and a paper blocking element including a connecting portion, the connecting portion has a positioning pillar rotatablely connected to the cover. The connecting portion extends downwards to form a stopping portion, the stopping portion further extends downwards to form a paper blocking arm, the lower portion of the paper blocking arm defines an opening communicating one side of the paper blocking arm near the side wall. The projection can stops at the stopping portion and passes through the opening of the paper blocking element to allow the document to be fed in, so the cooperation is easy, the paper feeding device works smoothly. | 08-21-2008 |
20080217839 | KICKER - Various embodiments and methods relating to a kicker are disclosed. | 09-11-2008 |
20080230979 | Sheet Feder - A sheet feeder comprising: a cassette; a feed roller; a sloping separation plate provided on a downstream side of the cassette in a sheet feeding direction; and a separation member that includes a first separation claw and second separation claw, the first separation claw being closer a bottom surface of the cassette than the second separation claw, the separation member and the feed roller cooperating with each other to separate and feed the sheets, sheet by sheet; wherein the sloping separation plate has openings so as to allow distal projecting portions of the first separation claw and second separation claw to project through the sloping separation plate, respectively, and wherein, a first angle formed between the distal projecting portion of the first separation claw and the sloping separation plate is larger than a second angle formed between the distal projecting portion of the second separation claw and the sloping separation plate. | 09-25-2008 |
20080265492 | Sheet-feeding device and method of feeding sheet media - A sheet-feeding device includes a tray for holding sheet media of various widths and a shaft extending across the tray. A plurality of pick assemblies is mounted to the shaft. The pick assemblies are spaced along the shaft so that one or more of the pick assemblies contact sheet media in the tray depending on the width of the sheet media. Furthermore, the spacing of the pick assemblies is such that the pick assemblies in contact with the sheet media define a total offset relative to the centerline of the sheet media that is sufficiently small enough to avoid skewing of sheet media for a variety of different media widths. | 10-30-2008 |
20080290588 | Sheet constraint - An apparatus in an example comprises a sheet holder, a separator surface, a feed head, and one or more arms. The sheet holder supports one or more sheets of media. The separator surface receives a leading edge of a sheet of the one or more sheets of media. The feed head is selectively positionable against a face of the sheet. The one or more arms extend toward an intermediate location of the separator surface to constrain the sheet from movement away from the separator surface. | 11-27-2008 |
20080303204 | PAPER FEEDING DEVICE - A paper feeding device comprises a supporting frame, a pickup roller assembly, a paper blocking unit, a base and a sensor. The paper blocking unit is placed beside the pickup roller assembly, having a paper blocking element connected to the supporting frame, including a connecting portion, the connecting portion extends downwards to form a paper blocking arm. The sensor is located in the base, having an emitting arm and a receiving arm. The lower portion of the paper blocking arm can be located between the emitting arm and the receiving arm or depart from them for turning off/on the sensor. The paper feeding device decides whether the paper is provided on the base by the turn on/off status of the sensor, so an additional obstructer is avoided. Compared with conventional paper feeding device, the structure of the present invention is simple, and it is convenient to assemble. | 12-11-2008 |
20090026693 | Sheet Separating Mechanism And Sheet Feeding Apparatus Having The Same - A sheet separating mechanism for a sheet feeding apparatus includes a separation wall configured to face a stack of media sheets and a media guide attached to a top end of the separation wall. The separation wall includes an inclined surface that confronts the leading edges of the media sheets in the stack and a separation strip disposed on the inclined surface. At least one flat spring having a deflectable free end and a friction pad adhered to the free end is removably attached to the media guide. The separation strip and the friction pad are arranged such that, during a sheet feeding operation, the separation strip defines an initial separation surface and the friction pad defines a second separation surface downstream from the initial separation surface in the sheet feeding direction. | 01-29-2009 |
20090079127 | Media pick system and method - A media pick system includes a media support, a pick roller, disposed above media support, configured to selectively contact and pick sheets of media disposed upon the media support, and clearance means, associated with the media support, for providing contact-free clearance around the pick roller during a media out condition. | 03-26-2009 |
20090160122 | Methods of Moving A Media Sheet In A Scanning Device - The present application is directed to embodiments for moving a media sheet within a scanning device. The methods include moving the media sheet through a separation mechanism that prevents multiple media sheets from being moved simultaneously along the media path. Further, a buckle is formed in the sheet at a point upstream from a scanner. The buckle acts as a buffer to absorb any load release that could occur as the media sheet exits the separation mechanism. The load release could cause a change in the velocity of the media sheet as it moves across the scanner. | 06-25-2009 |
20090243195 | SHEET FEEDING DEVICE AND RECORDING APPARATUS - A sheet material feeding apparatus includes a sheet stacking portion for stacking recording sheets; a feeding roller for feeding the recording sheets from the sheet stacking portion; separating means for separating the recording sheet fed out by the feeding roller; a holder for holding the separating means, the holder being rotatably supported on a main assembly of the apparatus; first urging means for urging the holder toward the feeding roller; a preliminary regulating member, rotatably supported on the holder, for regulating a gap relative to the feeding roller; second urging means for urging the preliminary regulating member toward the feeding roller; a first regulating member, supported by the holder, for regulating rotation of the preliminary regulating member relative to the holder; and a second regulating member, provided in the main assembly of apparatus, for regulating rotation of the preliminary regulating member relative to the main assembly of the apparatus. | 10-01-2009 |
20090256306 | PAPER FEEDING DEVICE - A paper feeding device includes a pick roller, a spring element and a separator pad. The pick roller has a roller surface. The spring element is disposed above the pick roller. The spring element has two spring arms extending toward two ends of the pick roller. Free ends of the two spring arms extend to positions outside the two ends of the pick roller and below the roller surface so as to be contactless with the roller surface and are pushed forward and upward by papers and then transfer a press force to the pick roller. A separator pad is arranged in front of the spring element and contacts with the roller surface of the pick roller for cooperating with the pick roller to separate a lowermost one of the papers. Because the spring arms are contactless with the pick roller directly, so the spring arms do not rub the pick roller, which avoids the pick roller being abraded. | 10-15-2009 |
20090273137 | PAPER FEEDER HAVING A PAPER STOPPER AND OFFICE MACHINE USING THE SAME - A paper feeder disposed on a casing for feeding a paper is provided. The paper feeder includes a feeding axle and a paper stopper. The feeding axle has a first engaging portion. The paper stopper includes a blocking plate and a second engaging portion. The paper stopper is co-axially and rotatably disposed on the feeding axle. When the feeding axle rotates in a first direction to engage the second engaging portion with the first engaging portion, the feeding axle drives the paper stopper to rotate in the first direction until the blocking plate blocks the paper. When the feeding axle rotates in a second direction to detach the second engaging portion from the first engaging portion, the feeding axle is able to feed a paper. | 11-05-2009 |
20090315253 | SHEET FEEDER, IMAGE SCANNER PROVIDED WITH THE SHEET FEEDER, AND PRINTER PROVIDED WITH THE IMAGE SCANNER - A sheet feeder includes a separation roller having a circumferential surface that contacts a first sheet to be fed first among stacked sheets and picks up the first sheet and one or more second sheets adjacent to the first sheet, a separation arm that is closer to the circumferential surface of the separation roller downstream in a feeding direction and configured to apply higher frictional resistance to the second sheets than the first sheet to feed the first sheet ahead of the second sheets, and a guide member including a guide portion that has a lower-friction surface than the separation arm and extends from the separation arm with a distal end thereof in contact with or close to the circumferential surface of the separation roller. The guide portion guides the first and second sheets along the circumferential surface of the separation roller. | 12-24-2009 |
20100007079 | Media Handling Device Having Media Shingling Mechanism For Providing Uniform Inter-Page Gap Between Successive Media Sheets - A media handling device includes a media shingling mechanism having a roller actuator located adjacent an upper portion of a media stack and downstream thereof relative to a predetermined direction of an uppermost sheet from the stack toward a media restraint dam located upstream thereof. The roller actuator undergoes counterclockwise rotation in response to upward moving contact by successive sheets in the upper portion of the stack against a peripheral segment of the roller actuator as the stack is moved vertically upward in a rectilinear direction toward the roller actuator. The counterclockwise rotation of the roller actuator and upward movement of the upper portion of the stack produces a lateral displacement of successive sheets toward the dam so as to produce shingling of successive sheets of the upper portion of the stack relative to one another, providing a uniform inter-page gap between successive sheets. | 01-14-2010 |
20100025921 | FEEDING DEVICE AND RECORDING DEVICE - A feeding device includes a mounting portion capable of mounting a plurality of recording media thereon in a stacked state, a delivering member for performing delivery of the top recording medium by performing a feeding motion in a state in which an contact surface thereof is in contact with the top recording medium of the recording media mounted on the mounting portion so that the top recording medium is delivered in a feeding direction of the recording media due to the frictional force generated between the top recording medium and the contact surface of the delivering member, the frictional force being used as transporting force, and a separating member. | 02-04-2010 |
20100025922 | FEED DEVICE AND RECORDING DEVICE - Provided is a feed device including: a loading unit in which a plurality of recording mediums is loaded in a stacked state; a delivery mechanism which has a first outer circumferential surface set such that friction force with the recording mediums is greater than friction force generated among the plurality of recording mediums when a feed operation is performed in a state of being in contact with the recording mediums and a second outer circumferential surface having a hardness higher than that of the first outer circumferential surface, and which performs the feed operation in a state in which at least the first outer circumferential is in contact with an uppermost recording medium of the recording mediums loaded on the loading unit so as to deliver the recording medium in a feed direction; a gate member and a gate energizing member. | 02-04-2010 |
20100156033 | IMAGE FORMING APPARATUS AND PAPER FEEDING DEVICE THEREOF - Disclosed herein are a paper feeding device and an image forming apparatus capable a convenient removal a paper jammed between a pickup unit and a multi-sheet feeding prevention unit. The multi-sheet feeding prevention unit may be moveable in cooperation with a detachable paper cassette such that the multi-sheet feeding prevention member supported on the moveable multi-sheet feeding prevention unit moves toward and away from the pickup unit so that the pressing force between the pickup unit and the multi-sheet feeding prevention unit may be released to allow the jammed paper to be removed. | 06-24-2010 |
20100237555 | PAPPER FEEDING MODULE AND MULTI-FUNCTION PERIPHERAL HAVING THE SAME - A multi-function peripheral includes a main body and a paper feeding module. The paper feeding module includes a supporting base, a feeding element and a paper separating elastic element. The supporting base is disposed on the main body. The supporting base is suitable for supporting multiple paper sheets and defines a paper feeding path. The feeding element is disposed above the supporting base for feeding the paper sheets along the paper feeding path. The paper separating elastic element has a fixed end connected to the supporting base and a free end disposed on the paper feeding path. When the feeding element feeds the papers along the paper feeding path, the free end applies a frictional force on the paper sheets such that one paper sheet passes the paper separating element and keeps moving while the rest of the paper sheets are blocked from moving by the paper separating elastic element. | 09-23-2010 |
20100244367 | Sheet Feeder and Image Recorder Having the Same - A sheet feeder includes a sheet tray configured to support one or more sheets stacked thereon in a slanted state, a feed roller disposed to face a lower end of a top one of the sheets stacked on the sheet tray, the feed roller being configured to feed the sheets, a supporter disposed under the sheet tray movably relative to the feed roller, the supporter being configured to support, on an upper surface thereof, lower ends of the sheets stacked on the sheet tray, and a displacement mechanism configured to displace the supporter farther from the feed roller depending on a pressure which the feed roller applies to the sheets when rotating. | 09-30-2010 |
20100244368 | PAPER-BLOCKING ASSEMBLY AND PAPER PROCESSING DEVICE USING THE SAME - This invention provides a paper-blocking mechanism and paper processing device using the same. The paper-blocking mechanism comprises a paper holder, a shaft connecting to a power source and driving a paper feeding portion, a restriction portion disposed on the shaft and moving between a first position and second position when the shaft is rotating, a paper blocking portion comprising a paper blocking plate and coupled to the paper processing device, wherein the restriction portion abuts the paper blocking plate to cause the paper holder in a paper blocking position when the restriction portion is in the first position, and the restriction portion doesn't abut the paper blocking plate to cause the paper holder in a paper feeding position when the restriction portion is in the second position. | 09-30-2010 |
20110018191 | PAPER FEEDING MODULE AND SCANNING DEVICE USING THE SAME - A paper feeding module including a first shaft, a first ring-shape structure, a paper picking roller and a paper feeding roller is provided. The first shaft has a first stopping block. The first ring-shape structure rotatably covers the first shaft and has a second stopping block and a third stopping block, wherein the first shaft drives the first ring-shape structure to rotate while the second stopping block is pushed by the first stopping block. The paper picking roller rotatably covers the first shaft and is located on the paper feeding path, and has a fourth stopping block, wherein the first ring-shape structure drives the paper picking roller to rotate while the fourth stopping block is pushed by the third stopping block. The paper feeding roller is disposed on the paper feeding path. | 01-27-2011 |
20110031681 | Attachment assist device and image forming apparatus employing the attachment assist device - An attachment assist device includes an engaging member, an engaged member, a drawing-force generator, biasing members, and rotational members. The engaging member is provided at one of a main unit and a sub unit detachably attached to the main unit. The engaged member is engaged by the engaging member and provided at the other of the main unit and the sub unit. The drawing-force generator generates a drawing force to draw the sub unit into an interior of the main unit. The biasing members are provided at the drawing-force generator to generate biasing forces in different directions. The rotational members are provided rotatably around support points at the drawing-force generator and engaged with the biasing members. The biasing members are serially connected with the rotational members to convert the biasing forces of the biasing members to the drawing force. | 02-10-2011 |
20110049787 | DRIVE ROLL / IDLER ROLL NIP RELEASE MECHANISM - A drive roll/idler roll nip release mechanism utilizes the motor used for the drive nip, coupled with one-way clutches, to power the nip release as a sheet is handed off to a downstream nip. A drive shaft is coupled to a first one-way clutch in one direction and an idler cam shaft is coupled to a second one-way clutch in the opposite direction. This allows the idler cam shaft to be driven only when the motor is reversed, and the drive shaft to be driven only when the motor is moving forward. The one-way clutch on the drive shaft allows the drive wheels to freewheel when the motor is reversed in order to engage the nip release. Thus, the nip release is activated while the drive nip continues to rotate in the direction of sheet motion. | 03-03-2011 |
20110233849 | Image Reader - An image reader is provided, which includes an intermediate feed roller that is disposed downstream relative to a separation roller on a feeding path and configured to rotate in contact with a document sheet separated and fed by the separation roller and feed the document sheet to a downstream side on the feeding path so as to restrain a variation of a tensile force applied to the document sheet, which variation may be caused when the document sheet is fed and away from the separation roller, and only a single U-turn roller that is disposed downstream relative to the intermediate feed roller on the feeding path, and configured to rotate in contact with the document sheet fed by the intermediate feed roller and feed the document sheet to a reading unit in a U-turn manner on a U-turn path curved along an outer circumferential surface of the U-turn roller. | 09-29-2011 |
20120001379 | SHEET SEPARATION MECHANISM AND IMAGE FORMING APPARATUS - A sheet separation mechanism includes a separation claw holder, a separation claw, a first coil spring and a second coil spring. The separation claw holder can be provided at a predetermined place in the image forming apparatus. The separation claw includes a separation claw base pivotally supported by the separation claw holder and a separation claw front-end pivotally supported by the separation claw base. The first coil spring is configured to apply a force to rotate the separation claw base toward an intermediate transfer belt. The second coil spring is configured to apply a force to rotate the separation claw front-end toward the intermediate transfer belt. | 01-05-2012 |
20120025451 | Sheet Feeder Device and Image Forming Apparatus - A paper feed cassette of an image forming apparatus is provided with a sheet receptacle and a pair of width adjustment guides. A cassette feeder of the image forming apparatus is provided with a plurality of rollers, a plurality of roller holders, and a plurality of roller biasing members. When the paper feed cassette is mounted on a feeder housing, an upper end of width adjustment guides is configured to cause at least one of the roller holders to move upward in a height direction of the image forming apparatus such that at least one of the rollers does not come in contact with a topmost sheet of paper. | 02-02-2012 |
20120080836 | Sheet feeder and image forming apparatus including the same - A sheet feeder includes: a friction pad held by a pad holder; and a separation roller that is in contact with the friction pad while in rotation. A separation nip formed between the friction pad and the separation roller separates a recording medium from a plurality of recording media fed into the separation nip, and the pad holder includes a convex portion that is provided downstream of the friction pad in a sheet feeding direction and at a middle portion in a first width direction perpendicular to the sheet feeding direction and that is capable of coming into contact with the recording medium. | 04-05-2012 |
20120098187 | Image reading apparatus and image forming apparatus - In an image reading apparatus, the linear coefficients of expansion of conveyance drive rollers and a linear coefficient of expansion of the holding unit are determined such that the amount of change in the outer diameter of each of the conveyance drive rollers due to a change in temperature environment is substantially the same as the amount of change in the interval between the first reading unit and the second reading unit due to a change in the temperature environment. The conveyance drive rollers are attached to a rotary shaft such that the positions of head portions of screws are alternately located along the axis direction of the rotary shaft on opposite sides of the outer circumference surface in a direction perpendicular to the axis direction of the rotary shaft. | 04-26-2012 |
20120104683 | System for Feeding and Separating Media in an Image Forming Device - A system for feeding and separating media in an image forming device according to one embodiment includes a pick mechanism having at least one rotatable pick roller for feeding a topmost media sheet from a stack of media sheets in a media storage location in a media process direction from an initial pick position into a media feed path. The system further includes at least one rotatable separator roller positioned opposite and spaced away from the at least one pick roller downstream from the initial pick position. The separator roller forms an open nip with the at least one pick roller. The at least one separator roller is rotatable counter to the media process direction for separating the topmost media sheet from an adjacent media sheet and returning the adjacent media sheet to a separation point upstream from the at least one separator roller. | 05-03-2012 |
20120104684 | Sheet Media Feeding Device, Sheet Media Separation Method, and Sheet Media Processing Device - A sheet media feeding device comprising a media feed path for feeding sheet media; and a media separator for separating sheet media that are overlapping when advanced into the media feed path. The media separator includes a separation roller, a retard roller that is pressed against the separation roller and applies a torque load, and a media offsetting member for feeding the sheet media to a nipping part of the separation roller and the retard roller with the sheet media offset to the separation roller side. | 05-03-2012 |
20120126476 | SHEET FEEDING DEVICE WITH GROOVED ELASTIC PAD AND IMAGE PROCESSING APPARATUS USING THE SAME - A sheet feeding device, for transporting a sheet into a transporting path in an image processing apparatus, includes an elastic pad and a feeding roller for feeding the sheet. The elastic pad is bent and disposed opposite the feeding roller and applies an acting force to the feeding roller to separate the sheet from a stack of sheets by cooperating with the feeding roller. The elastic pad has a first side and an opposite second side. The second side is formed with a groove. The elastic pad is bent at an angle at the groove. | 05-24-2012 |
20120153561 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - The present invention provides a sheet feeding apparatus and an image forming apparatus enabling to prevent generating a dent at a retard roller. When a sheet feeding operation is started, a driving motor normally rotates, and a swing arm is moved to a first position to cause a retard roller to press to a feed roller by a C input gear and a C gear. Also, when the sheet feeding operation is finished, the driving motor reversely rotates, and the swing arm is moved to a second position to cause the retard roller to separate from the feed roller. | 06-21-2012 |
20120161385 | MEDIUM CARRYING DEVICE AND IMAGE FORMING DEVICE - An information processing device includes an opening and closing member that is configured to be movable between open and closed positions, and an interference member that is positioned in a middle of an opening and closing trajectory of the opening and closing member. The opening and closing member takes the open position after the opening and closing member moves in a direction away from the interference member and takes the closed position after the opening and closing member moves in a direction toward the interference member. | 06-28-2012 |
20120205858 | RECORDING APPARATUS - A recording apparatus includes: a holding unit that holds the recorded recording medium fed out from the medium discharge unit in a standing position; and a medium pressing unit that protrudes to the holding unit with respect to a virtual surface in the feeding-out direction of the recording medium by the nip roller of the medium discharge unit, opposite to the holding unit, and presses the recorded recording medium fed out from the medium discharge unit against the holding unit. | 08-16-2012 |
20120306148 | SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A sheet feeding device includes a sheet storing portion storing sheets stacked on a stacking surface thereof; a feeding roller feeding each of the sheets by rotating while being in contact with a topmost one of the sheets; a support member having a support surface that supports downstream-side part, in a sheet feeding direction, of the sheets and, at the time of sheet feeding, being movable perpendicularly to the stacking surface while lifting the downstream-side part of the sheets with the topmost sheet kept in contact with the feeding roller; and a stopper member configured to come into contact with leading ends of some sheets to be fed by the feeding roller and to stop sheets other than the topmost sheet. The support surface of the support member slopes upward, with respect to the stacking surface, toward a downstream side in the sheet feeding direction. | 12-06-2012 |
20130001865 | SHEET FEEDING APPARATUS - A sheet feeding apparatus includes a tray, a driving mechanism disposed above the tray, a separating mechanism rotatably connected to the tray, and at least one resilient element to provide a constant pressure against the separating mechanism. The driving mechanism includes at least one roller to move one of the sheets. The separating mechanism includes at least one retard pad to separate the sheets and create frictional resistance between the separating mechanism and the stack of the sheets. When the tray has only a few sheets left, the separating mechanism is rotated and the frictional resistance is reduced. | 01-03-2013 |
20130043643 | SHEET FEEDING DEVICE AND RECORDING APPARATUS - There is disclosed a sheet feeding device which feeds a plurality of stacked sheet-like recording media one by one from a tray containing the recording media, including a sheet feeding roller which comes in contact with the uppermost layer of the recording media contained in the tray, and rotates to feed the recording medium; an inclined member including an inclined surface which is positioned on a downstream side in a feeding direction of the recording media, and inclined at an obtuse angle to the feeding direction of the recording media, and on which the fed recording media abuts; and a separating member having an uneven surface, to separate the one fed recording medium, wherein the separating member is configured to be movable between a position projecting to the inclined member and a position retreated from the projecting position, while maintaining the same inclining angle as that of the inclined member. | 02-21-2013 |
20130049289 | Sheet Feeder and Image Forming Apparatus Having the Same - A sheet feeder is provided that includes a friction member that includes a contact pressure surface that is configured to contact a feed roller when there is no sheet between the friction member and the feed roller and disposed closer to the feed roller than an upper surface of a supporting member supporting the friction member such that a virtual tangential plane, which is such a virtual plane as if the contact pressure surface were extended toward an upstream side and a downstream side in a sheet feeding direction, does not intersect with the supporting member, and a slanted guide surface that is disposed upstream relative to the contact pressure surface in the sheet feeding direction and slanted with respect to the virtual tangential plane so as to be farther away down from the virtual tangential plane toward the upstream side in the sheet feeding direction. | 02-28-2013 |
20130154182 | MULTIFUNCTION PRINTER AND STOPPER APPLIED THEREIN - A multifunction printer (MFP) and a stopper applied therein are provided. The MFP includes a body, a top cover and the stopper. The body has a paper conveyor path, a paper holder located in front of an entrance of the paper conveyor path and a first rotating axle located in the paper conveyor path. A first side of the top cover rotates about the first rotating axle to be close to the paper holder. The stopper has a second rotating axle connected to the body, a connecting portion and an eccentric portion. The connecting portion is connected between the second rotating axle and the eccentric portion. The eccentric portion hangs down at the entrance of the paper conveyor path. A center of gravity of the stopper is located in the eccentric portion. A first stopping point of the top cover is located in a rotating path of the eccentric portion. | 06-20-2013 |
20130161897 | MEDIUM CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS - A medium conveyance apparatus used in an image forming apparatus, includes a medium mounting unit held at a body or apparatus frame for mounting a medium, a conveying member supported rotationally around an axis to the body for conveying the medium, and a separating member being held at the body and contacting with the conveying member. The medium mounting unit includes an engaging portion for engaging the body, whereas the body or apparatus frame includes an engaged portion to be engaged with the engaging portion, and the engaging portion includes a contacting portion for regulating the body or apparatus frame in a conveyance direction of the medium. This medium conveyance apparatus maintains improved medium conveyance capability for a long period. | 06-27-2013 |
20130334765 | PAPER FEEDING MECHANISM - A paper feeding mechanism includes a paper cassette, a feeding roller, a baffle, and a paper separating apparatus. The paper cassette stores stacks of paper. The feeding roller pulls a sheet of paper from the paper cassette and feeds the sheet of paper into a paper transport path. The baffle is located at a side of the paper cassette. The paper separating apparatus is mounted to the baffle and prevents more than one sheet of paper from being fed into the paper transport path at a time. | 12-19-2013 |
20140077443 | SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SHEET CONVEYING DEVICE - A sheet conveying device that conveys a sheet includes a sheet conveying path, a conveying mechanism, and a guiding plate. The sheet conveying path is set to include a nonlinear portion. The conveying mechanism is arranged in the sheet conveying path to convey a sheet. The guiding plate is arranged in the nonlinear portion of the sheet conveying path and has a guiding plane along which the sheet is guided. The guiding plate includes a thinned portion in an area of the guiding plane against which a leading end of the sheet being conveyed along the sheet conveying path collides so that the thinned portion suppresses high frequency components of an impulsive sound produced by the collision. | 03-20-2014 |
20140138903 | SHEET FEED APPARATUS, AND DOCUMENT CONVEYING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME - Sheet conveying path extends from sheet stacking portion. Sheet feed roller is disposed, in sheet conveying path, facing sheet stacking portion. Sheet feed pad is disposed facing circumferential surface of sheet feed roller, and has pad surface that forms, between pad surface and circumferential surface, nip portion into which sheet is conveyed. Support member has support surface to which sheet feed pad is fixed and contact surface located upstream of support surface in sheet conveying direction so as to be higher than pad surface, and configured to make contact with leading end of sheet fed from sheet stacking portion. Rib portions are disposed in support member. Rib portions are disposed on both side portions, in sheet width direction intersecting sheet conveying direction, of support surface, and have inclined surfaces that extend so as to lower front end portions thereof, respectively, from contact surface toward downstream side in sheet conveying direction. | 05-22-2014 |
20140138904 | SHEET FEEDING DEVICE, AND IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SHEET FEEDING DEVICE - A sheet feeding device includes a grounding member arranged to a housing and electrically grounded, a sheet loading part arranged to the housing and loading a sheet, a sheet conveying path extending from the sheet loading part and conveying the sheet in a conveying direction, a sheet feeding part and a swinging member. The sheet feeding part is arranged facing to the sheet loading part and conveys the sheet on the sheet loading part in the conveying direction. The electro-conductive swinging member is swingably supported to the housing and swung in a first direction by bring the sheet from the sheet loading part into contact with the swinging member. The swinging member includes a first contact part receiving the contact of the sheet and a second contact part coming into contact with the grounding member accompanying to the swing in the first direction of the swinging member. | 05-22-2014 |
20140145392 | PAPER FEEDER AND IMAGE FORMING APPARATUS WITH THE SAME - A paper feeder includes: a cassette including a sheet container; a sheet conveyance path along which a sheet is conveyed in a sheet conveyance direction extending along a direction of loading/unloading of the cassette into/from an apparatus body; a paper feed roller configured to convey the sheet in the sheet conveyance direction; an opposed member, opposite to the paper feed roller, forming together with the paper feed roller a paper feed nip where the sheet enters; and a restricting member configured to, in a first state where the cassette is unloaded, close off a portion of the sheet conveyance path upstream of the paper feed nip in the sheet conveyance direction to restrict the sheet in the sheet container from entering the paper feed nip and, in a second state where the cassette is loaded and the paper feed roller is ready to convey the sheet, open the sheet conveyance path. | 05-29-2014 |
20140151953 | Sheet Conveyor Device - A conveyor device includes a conveyor including a conveyor roller to convey a sheet along a conveyance path, a cover movable between a closed position where the cover covers the conveyor roller and an open position where the cover is separated from the conveyor roller. The conveyor further includes a pinch roller urged toward the conveyor roller when the cover is in the closed position. When the cover is in the closed position, the conveyor roller and the pinch roller define a nip point along the conveyance path. The conveyor device includes a holder supported by the cover and to rotatably support the pinch roller and an urging member disposed between the cover and the holder to move the holder away from the cover to urge the pinch roller toward the conveyor roller when the cover is in the closed position. | 06-05-2014 |
20140197593 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - Disclosed are a sheet feeding apparatus and an image forming apparatus capable of reliably separating and feeding sheets one by one without delay and damage to a sheet for a high speed of a printer or the like. A sheet feeding portion has a nip guide member having a sloped guide surface sloped so as to guide a leading end of a sheet to a separation nip portion such that a guide leading-end is biased to a feed roller with a predetermined distance from the feed roller. A support member supports the nip guide member not to recede from the feed roller when a thickness of a sheet bundle bumping into the sloped guide surface is smaller than a predetermined distance between the feed roller and the guide leading-end and supports the nip guide member to recede from the feed roller when the thickness is larger than the predetermined distance. | 07-17-2014 |
20140284872 | SHEET FEED DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A sheet feed device according to an aspect of the present disclosure includes an apparatus body, a cassette, a sheet conveying path, a pickup roller, a feeding portion, a lift plate, and a regulation member. Feeding portion conveys sheet fed from pickup roller downstream in sheet conveying direction while holding sheet at nip portion. Lift plate is changeable in position between first position and second position. When cassette is removed from apparatus body and lift plate is positioned in first position, regulation member protrudes to sheet conveying path on upstream side in sheet conveying direction relative to nip portion to thereby regulate entering of sheet stored in sheet storage portion into nip portion. When cassette is mounted into apparatus body and lift plate is positioned in second position, regulation member retreats from sheet conveying path thereby to cause sheet conveying path to become open. | 09-25-2014 |
20140353904 | SHEET FEEDER AND IMAGE FORMING APPARATUS PROVIDED WITH SAME - A sheet feeder includes a casing, a sheet stacking portion, a sheet conveyance path, a feed roller, a separation pad, a holder, a mounting portion and a guiding member. The sheets are placed on the sheet stacking portion and fed in a predetermined direction in the sheet conveyance path. A nip portion, through which the sheet passes, is formed between the feed roller and the separation pad. The holder fixedly supports the separation pad and is mountable into and removable from the mounting portion of the casing. The guiding member guides the holder. The posture of the holder is changeable between a first posture in which a predetermined clearance is formable between the guiding member and the holder when the holder is mounted into the mounting portion and a second posture in which the holder is pressed against the guiding member when the sheet passes through the nip portion. | 12-04-2014 |
20140353905 | Sheet Separator - A sheet separator including two guides disposed to face each other across a distance in a width direction, at least one of the two guides being configured to move along the width direction to enlarge or reduce the distance therebetween, a separation roller, a separation pad configured to separate sheets being conveyed by the separation roller on a sheet-by-sheet basis in cooperation with the separation roller, a pressing mechanism configured to apply a pressing load to press the separation pad toward the separation roller, and an adjuster configured to increase the pressing load in response to the at least one of the two guides moving in a direction to enlarge the distance, and decrease the pressing load in response to the at least one of the two guides moving in a direction to reduce the distance. | 12-04-2014 |
20150054213 | IMAGE FORMING APPARATUS - A manual paper-sheet feed portion of an image forming apparatus includes a manual tray, a feed opening, a feed roller, and a shutter. The manual tray is shifted to an opened state, whereby placement of a recording medium becomes possible. The feed opening accepts feeding of the recording medium to a conveyance path. The feed roller feeds the recording medium to the conveyance path. When the feeding of the recording medium to the conveyance path is started, the shutter swings in one direction to open the feed opening, and when a rear end of the recording medium passes through the feed opening, the shutter swings in the other direction to return to a position where to shield the feed opening. | 02-26-2015 |
20150084269 | SHEET FEEDING UNIT AND IMAGE FORMING APPARATUS - A sheet feeding unit includes a supporting member configured to rotatably support a rotary feeding member, a first retaining member configured to push the supporting member upward from the underside to retain the rotary feeding member at a waiting position, and a second retaining member protruding on the underside of the supporting member when the first retaining member retains the supporting member. The retention of the supporting member by the first retaining member is released in association with the mounting of a sheet storage portion in the mounting position, and then the retention of the supporting member by the second retaining member is released. | 03-26-2015 |
20150115520 | SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SHEET FEEDING DEVICE - A sheet feeding cassette is capable of being mounted to and removed from an apparatus body along a specified mounting direction. The sheet accommodated within a sheet accommodating portion is conveyed through a sheet conveyance path in a sheet conveyance direction extending along the mounting direction. A sheet feeding roller is disposed at an inlet side of the sheet conveyance path so as to face the sheet accommodating portion. A retard roller is disposed so as to face the sheet feeding roller. The sheet feeding roller forms a sheet feeding nip between the sheet feeding roller and the retard roller. A lock mechanism locks drawing-out of the sheet feeding cassette from the apparatus body or releases the lock. A separator moves the retard roller away from the sheet feeding roller prior to or simultaneously with the lock being released by the lock mechanism. | 04-30-2015 |
20150371507 | MEDIUM SEPARATING AND STACKING APPARATUS, MEDIUM STORAGE BOX, AND FINANCIAL DEVICE - A medium separating and stacking device is provided. In one embodiment, a medium separating and stacking device comprises a frame, a first shaft rotatably coupled to the frame, a second shaft rotatably coupled to the frame and spaced apart from the first shaft, and a rotation prevention part allowing the second shaft to stop at a set position by using a magnetic force. | 12-24-2015 |
20160159591 | SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS - A sheet conveyance apparatus is equipped with a stacking portion on which sheets are stacked, a rotator conveying a sheet by rotating in a contact state with the sheet stacked on the stacking portion, a separating member pressing the rotator and separating the sheets one by one at a contact portion where the rotator and the separating member contact each other, a holder holding the separating member, a guide portion rotatably provided with the holder and capable of guiding a front end of the sheet to the contact portion, and a regulating portion regulating the guide portion from rotating in a direction approximating the rotator in a state where the guide portion contacts against the regulating portion. The guide portion can be rotated in a direction separating from the rotator in a state where the separating member presses the rotator. | 06-09-2016 |
20160167902 | SHEET-FEEDING DEVICE WITH MULTISTAGE STOP ARMS | 06-16-2016 |
20190144220 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS | 05-16-2019 |
20190144225 | MEDIUM FEEDING DEVICE AND IMAGE READING APPARATUS | 05-16-2019 |
271122000 | By restrainer having rearwardly moving surface | 3 |
20090152801 | SHEET FEEDING APPARATUS - A sheet feeding apparatus includes stacker for stacking a sheet material; a feed roller for separating the sheet material stacked on the stacker; a rotatable separation roller rotatable by being driven by the feed roller; and a torque limiter for controlling rotation of the separation roller; wherein a second or subsequent sheet material staying in a nip between the feed roller and the separation roller is separated from the separation roller by a rotational direction of the feed roller being changed from a forward rotational direction to a backward direction and by a rotational direction of the separation roller being changed to a backward direction by the feed roller during a first sheet material which is in contact to the feed roller being nipped by the nip; and a first sheet material is fed toward downstream of the nip by the rotational direction of the feed roller being changed from the backward direction to the forward direction. | 06-18-2009 |
20120313315 | FEEDING DEVICE AND IMAGE FORMING APPARATUS - A feeding device includes a carrying roller to carry a top sheet of sheets in a conveying direction, a reverse roller to transfer subsequent sheets beneath the top sheet in a direction opposite to the conveying direction while being moved in the conveying direction with the top sheet, and an end fence to restrict rear end positions of the subsequent sheets. The end fence includes an upper contacting member to come into contact with an upper surface of the top sheet, and a restricting member extending from the upper contacting member along a rear end surface of the sheets to stop rear ends of the sheets in its entire width direction, the upper contacting member and the restricting member being arranged such that a width dimension of the end fence is changeable in the width direction, and the end fence being arranged above the top sheet. | 12-13-2012 |
20140054847 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - There are provided a sheet feeding apparatus which, with a simple configuration, can suppress generation of noise during feeding of a sheet without having an affect on sheet separating performance, and an image forming apparatus which includes this sheet feeding apparatus. The sheet feeding apparatus includes: a feeding roller which feeds a sheet S; a separation roller which is pressed against the feeding roller and rotates in a reverse direction to a direction of feeding by the feeding roller to separate sheets, fed by the sheet feeding apparatus, one by one; a feeding rotational shaft which transmits rotational driving force to the feeding roller; and a roller dumper which is provided between the feeding roller and the feeding rotational shaft, and transmits the rotational driving force from the feeding rotational shaft to the feeding roller, while absorbing vibrations of the feeding roller. | 02-27-2014 |
271124000 | By adjustable restrainer | 5 |
20160167903 | PAPER FEEDING APPARATUS AND IMAGE FORMING APPARATUS | 06-16-2016 |
271125000 | Including restraining roller | 4 |
20080224382 | SHEET FEEDING DEVICE AND RECORDING APPARATUS - A sheet material feeding apparatus includes a sheet stacking portion for stacking recording sheets; a feeding roller for feeding the recording sheets from the sheet stacking portion; separating means for separating the recording sheet fed out by the feeding roller; a holder for holding the separating means, the holder being rotatably supported on a main assembly of the apparatus; first urging means for urging the holder toward the feeding roller; a preliminary regulating member, rotatably supported on the holder, for regulating a gap relative to the feeding roller; second urging means for urging the preliminary regulating member toward the feeding roller; a first regulating member, supported by the holder, for regulating rotation of the preliminary regulating member relative to the holder; and a second regulating member, provided in the main assembly of apparatus, for regulating rotation of the preliminary regulating member relative to the main assembly of the apparatus. | 09-18-2008 |
20080237971 | Device for Separating Overlapping, Flat Items of Mail - A device for separating overlapping, flat items of mail in an upright position in a transport path has separating sections arranged in the transport path and having transport belts. A stationary retaining strip running over a length of all separating sections is attached on the transport path on a side opposite the transport belt and operates on the mail items with friction force. Pressure elements for pressing the retaining strip onto transported mail items are distributed over a length of the retaining strip. Each pressure element comprises a coupling lever, pressure rollers and an elastic belt loop. The belt loop is attached a back of the retaining strip, and guided via the pressure rollers on ends of the coupling lever running in longitudinal direction of the retaining strip. The coupling lever is displaceably supported on a pivot axis. | 10-02-2008 |
20140035221 | SHEET HANDLING APPARATUS - According to one embodiment, a sheet handling apparatus includes a conveying path to convey a sheet, a processing portion to perform a predetermined process on the sheet while conveying the sheet on the conveying path, a separable roller pair that is arranged at a certain distance from the processing portion on an upstream side or a downstream side in conveying direction, the separable roller pair being adapted to hand over the sheet between the conveying path and the processing portion by holding the sheet with a nip and rotating, a separating mechanism to separate the separable roller pair, and a controller that controls the separating mechanism such that the separable roller pair is separated before or after processing is started with the processing portion on a sheet that is conveyed on the conveying path. | 02-06-2014 |
20140239575 | LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCLUDING SAME - A fixing device includes two rotary bodies and a recording-medium separation unit. The two rotary bodies are pressed against each other to form a nipping portion. The recording-medium separation unit is disposed at a position downstream from the nipping portion in a direction in which the recording medium is conveyed. The recording-medium separation unit includes a separation plate holder, a separation plate, and a spring. The separation plate holder extends in a longitudinal direction of one of the rotary bodies to hold the separation plate away from the one of the rotary bodies. The separation plate holder has rotation fulcrums and positioning surfaces at both ends in the longitudinal direction. The positioning surfaces are urged by the spring toward the one of the rotary bodies. Each of the positioning surfaces has a bent side to form a flange surface having one of the rotation fulcrums. | 08-28-2014 |