Entries |
Document | Title | Date |
20090066018 | IMAGE RECORDING APPARATUS - An image recording apparatus includes a record unit; a first roller provided upstream of the record unit; a second roller provided downstream of the record unit; a motor which drives the first and second rollers; a first drive signal generation unit which generates a first drive signal based on a first rotation amount of the first roller and a first target rotation amount; a correction value generation unit which generates a correction value based on the first rotation amount and a second rotation amount of the second roller; a target value generation unit which generates a second target rotation amount based on the first target rotation amount and the correction value; a second drive signal generation unit which generates a second drive signal based on the second target rotation amount and the second rotation amount; and a controller which controls the motor by the first drive signal until a conveyed sheet reaches a position and controls the motor by the second drive signal thereafter. | 03-12-2009 |
20090108521 | SHEET MATERIAL FEEDING APPARATUS - A sheet material feeding apparatus capable of favorably guiding a sheet material to perform smooth feeding comprises a pair of rolls and first and second guide members and permits a sheet material to pass between the first guide member and the second guide member. One of the rolls has a plurality of circumferential grooves arranged between both ends of a sheet material feeding surface in an axial direction and spaced from one another in the axial direction, and the first guide member includes guide portions passing through the respective circumferential grooves and extending continuously to a downstream side from an upstream side between the pair of rolls in a sheet-material conveyance direction. | 04-30-2009 |
20090121422 | PAPER CONVEYING APPARATUS, IMAGE FORMING APPARATUS AND INK-JET RECORDING APPARATUS - A sheet of paper is conveyed by a convey roller to a print receiving member and pushed forward thereon while being supported by ribs and pressed downward by pressing members so as to keep a predetermined distance between the paper and a recording head while an image is printed on the paper. Since the pressing members press respective side portions of the paper, the paper can be bent downward outside the outmost ribs and prevented from rising at the side portions. | 05-14-2009 |
20090166966 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes an opening/closing member which is turnably supported by an apparatus body and through which a user accesses the apparatus, and a conveying guide which is movably supported by a user access door and which includes a sheet conveying surface. When the opening/closing member is opened in a state where a sheet remains on the sheet conveying surface, the conveying guide is separated from the opening/closing member by the remaining sheet. | 07-02-2009 |
20090212493 | PAPER SHEET TRANSPORT MECHANISM AND PAPER HANDLING DEVICE - The first aspect of the present invention is a paper sheet transport mechanism. This mechanism comprises a first paper sheet guide that forms a first paper sheet transport path, the first paper sheet guide having a rotating shaft; a pushing unit that pushes the first paper sheet guide in a specified direction around the rotating shaft; a projecting member that moves in conjunction with movement of the first paper sheet guide; a second paper sheet guide that forms a second paper sheet transport path such that paper sheets are transferred between the first and second paper sheet guides; and a alignment unit that moves in conjunction with a retune movement of the second paper sheet guide to be in contact with the projecting member against the pushing by the pushing unit and to align one end of the first paper sheet guide and one end of the second paper sheet guide. | 08-27-2009 |
20090212494 | Sheet conveyance device, image reader, and image forming apparatus capable of feeding sheets effectively - In a sheet conveyance device, a plurality of driving rollers opposes a plurality of driven rollers to form nip portions between the plurality of driving rollers and the plurality of driven rollers. A center portion of a driving shaft for supporting the plurality of driving rollers in an axial direction of the driving shaft is bent downstream in a sheet conveyance direction so that the plurality of driving rollers is shifted downstream in the sheet conveyance direction and tilted with respect to the sheet conveyance direction in a V-like shape about a center line in a width direction of a sheet. The plurality of driven rollers is shifted downstream in the sheet conveyance direction by an amount determined by an amount by which the plurality of driving rollers is shifted downstream in the sheet conveyance direction. | 08-27-2009 |
20090212495 | RECORDING APPARATUS - A recording apparatus includes a recording head, a transport driving roller, and a transport driven roller. The recording head discharges ink onto a transported recording medium, thereby performing recording. The transport driving roller is provided on the upstream side of the recording head in the transport direction and includes driving side roller portions and depressed portions. The driving side roller portions are rotationally driven, thereby transporting the recording medium. The diameter of the depressed portions is smaller than that of the driving side roller portions. The driving side roller portions and the depressed portions are arranged in a direction perpendicular to the transport direction of the recording medium in such a manner that at least one driving side roller portion alternates with at least one depressed portion. The transport driven roller is provided opposite the transport driving roller and includes driven side roller portions and presser rollers. | 08-27-2009 |
20090302532 | CONVEYANCE APPARATUS, CONTROL METHOD THEREFOR, AND PRINTING APPARATUS - A conveyance apparatus increases the conveyance precision of a conveyance unit. The conveyance apparatus has first and second conveyance rollers. The conveyance apparatus includes a DC motor serving as a driving source for the conveyance rollers, a first encoder which outputs a first pulse signal in accordance with rotation of the first conveyance roller, a second encoder which outputs a second pulse signal in accordance with rotation of the second conveyance roller, and a control unit having a first mode in which the DC motor is controlled based on first information about the first pulse signal when executing a conveyance operation to convey a sheet by using the first and second conveyance rollers, and a second mode in which the DC motor is controlled based on second information about the second pulse signal when executing a conveyance operation to convey a sheet by using the second conveyance roller. | 12-10-2009 |
20100187755 | ANGLED PRESSURE ROLL USED WITH VACUUM BELTS - An apparatus comprises a belt and a pressure roll contacting the belt. The pressure roll comprises at least two roll segments connected to a common axle and contacting the belt. The roll segments are offset from one another along the belt. | 07-29-2010 |
20100225054 | SHEET FEED ASSEMBLY DEFINING CURVED AND STRAIGHT FEED PATH - A sheet feed assembly for feeding sheets of material having a known bending stiffness through a device with low friction. The sheet feeding assembly has feed path structures for defining a feed path, the feed path having a first point with a first radius of curvature, a second point with a second radius of curvature and a transition section extending between the first point and the second point. The transition section defines conforms to a shape adopted by one of the sheets of material extending from the first point where it has a curvature of the first radius, to the second point where it has a curvature of the second radius. | 09-09-2010 |
20100252989 | Apparatus And Method For Temporarily Increasing The Beam Strength Of A Media Sheet In A Printer - A media sheet deformer provides an adjustable amount of media sheet deformation. The media sheet deformer nonpermanently deforms a media sheet in a printer to increase the beam strength of the media sheet temporarily. The device includes a deformer, a support member, and a positioning member. The deformer is positioned in a media path within a printer. The deformer is configured to deform a media sheet temporarily with an amount of media sheet deformation. The amount of media sheet deformation causes the media sheet to exhibit an arched profile that increases the beam strength of the media sheet. The support member is coupled to the deformer. The support member is movably coupled to a printer frame. The positioning member is coupled to the support member. The positioning member is configured to assert a force on the support member and alter the amount of media sheet deformation. | 10-07-2010 |
20110062661 | MEDIUM-DIRECTING DEVICE AND IMAGE-FORMING APPARATUS - A medium-directing device includes: first-third roll members, the third roll member contacting the first and second roll members in first and second regions, respectively; and a directing member having first and second directing surfaces and being rotatable between first and second positions such that the directing member, when located at the first position, directs a medium conveyed along a first conveyance path toward the first region via the first directing surface and directs a medium conveyed from the second region toward a second conveyance path via the second directing surface, the directing member including a region of the second directing surface on a side closer to the second region relative to a bent portion, in which, when the directing member is at the first position, a distance between the second directing surface and a tangential line between the second and third roll members increases toward the second region. | 03-17-2011 |
20110133399 | SHEET CONVEYING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE READING APPARATUS - An elastic sponge roller is provided at a confluence portion where a first sheet conveyance path joins in a second sheet conveyance path and a leading edge and a rear edge of a sheet are brought into contact with the sponge roller when the sheet is conveyed from the first conveyance path to the second conveyance path. Further, the sponge roller is connected to drive via a one-way clutch. Such a configuration reduces a sound produced at the confluence portion and prevents the leading edge of the sheet from being bent in colliding with the sponge roller to stabilize the conveyance of the sheet. | 06-09-2011 |
20110204563 | CONVEYING APPARATUS, RECORDING APPARATUS, CONVEYING METHOD, AND RECORDING METHOD - A conveying apparatus includes a suction mechanism that suctions an interior of a bag, and a connecting mechanism that connects an opening of the bag and the suction mechanism. | 08-25-2011 |
20110221126 | Paper feeder assembly for image forming apparatus, and image forming apparatus incorporating the same - A paper feeder assembly for an image forming apparatus is configured to sandwich a sheet of paper between a roller and an opposing pressing member and feed the sheet of paper by the roller being rotated. The paper feeder assembly includes a pressure variable member for varying pressurized contact force between the roller and the pressing member. In conjunction with ON/OFF action of a power supply switch provided in a main body of the image forming apparatus, the pressure variable member ensures pressurized contact force enough to fix an image when the power supply switch is turned on, whereas the pressure variable member operates to separate the roller and the pressing member from each other when the power supply switch is turned off. | 09-15-2011 |
20110266743 | SHEET FEEDER HAVING MANUAL FEED TRAY, AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A sheet feeder includes: a housing; a sheet feeding mechanism and a manual feed tray and that is mounted pivotably to the housing. The manual feed tray can assume a first posture that is closed relative to the housing, and a second posture that is open relative to the housing. A link couples the housing with the manual feed tray and pivots with a pivoting movement of the manual feed tray to hold the second posture of the manual feed tray. A posture changing mechanism permits the manual feed tray to pivot farther in an opening direction from the second posture when a load acts on a sheet mounting surface and causes the manual feed tray to assume a third posture while being held by the link. A posture holding mechanism holds the third posture of the manual feed tray. | 11-03-2011 |
20110278792 | PAPER TRANSPORTING APPARATUS, PAPER FEEDING UNIT AND IMAGE FORMING APPARATUS - A paper transporting apparatus includes a pair of transport rollers including a first transport roller, a second transport roller, a first roller shaft inserted through the first transport roller, a second roller shaft inserted through the second roller, an urging member which urges the second roller shaft towards the first roller shaft, and a cover member arranged to be opened and closed. The urging member is attached to an inner surface of the cover member to support the second roller shaft, and urge the second roller shaft when the cover member is closed. | 11-17-2011 |
20120091654 | ROLL NIP STRUCTURE HAVING ADAPTIVE PIVOT POSITION - A printing apparatus comprises a marking device, a media path positioned to supply sheets of media to the marking device, and a media supply tray positioned to supply the sheets of media to the media path. Further, a pair of rollers forms a nip adjacent the media supply tray. The rollers rotate in opposite directions to cause the sheets of media to move from the media supply tray to the media path. Additionally, a first frame structure supports a first roller of the pair of rollers. The first frame structure can be in a fixed position and holds the first roller in a fixed location. A second frame structure supports a second roller of the pair of rollers. The second frame structure is adjustable in a first direction toward the first roller and has a variable pivot position allowing the second frame structure to move in a second direction perpendicular to the first direction. | 04-19-2012 |
20120098191 | MEDIUM PRESSURIZING DEVICE AND IMAGE FORMING APPARATUS - A medium pressurizing device includes: two rotating bodies that rotate and allow a recording medium held in a contact part to pass; a pressurizing member that applies, to one of the rotating bodies, a pressure of pressing the one toward the other; a drive roll disposed downstream from the contact part in a conveyance direction, and rotating thereby transmitting a conveyance driving force to the recording medium; and a following roll contacting the drive roll, and rotating by following rotation of the drive roll, thereby conveying the recording medium held therebetween. The device further includes: an axis member rotating by receiving a driving force; and a cam member fixed to the axis member, acting on the pressurizing member, and following rotation of the axis member, thereby changing the pressure. The following roll has a hollow, and the axis member is disposed to pass through a space in the hollow. | 04-26-2012 |
20120153567 | CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS - A conveyance device includes: a rotary member that rotates; a driven member that rotates in accordance with the rotary member and conveys a conveyed material while holding the conveyed material between the driven member and the rotary member; a guide part provided on an upstream side from a rotary shaft of the driven member in a conveyance direction of the conveyed material, that guides the driven member toward the rotary member; and a support member that brings the rotary shaft of the driven member into contact with the guide part, and along with the guide part, supports the rotary shaft. | 06-21-2012 |
20120228823 | DOCUMENT FEEDING DEVICE AND IMAGE FORMING APPARATUS - A document feeding device includes a document reader, a drive roller and a plurality of driven rollers. The document reader is configured to read a document fed in a feeding direction. The drive roller is disposed upstream of the document reader in the feeding direction. The plurality of driven rollers is disposed opposite to the drive roller to form nips therebetween. The plurality of driven rollers is supported by one common shaft extending in a direction orthogonal to the feeding direction. A position of at least one nip formed by at least one of the plurality of driven rollers is offset downstream or upstream of other nips formed by other driven rollers. | 09-13-2012 |
20130015622 | IMAGE FORMING APPARATUS AND POWER TRANSMISSION MECHANISMAANM HATA; MasakiAACI Nagoya-shiAACO JPAAGP HATA; Masaki Nagoya-shi JP - Image forming apparatus having sheet transport device transporting sheet through nip between pressing and drive members by applying rotational force to drive member via power transmission mechanism that includes: first and second rotational shafts connected to drive member and drive source, respectively; first and second rotation transmitting members attached to first and second rotational shafts, respectively; holding member including first and second contact parts disposed on opposite sides of second rotation transmitting member; and rotational move member switching to power non-transmission and transmission states by moving holding member rotationally to first and second positions in conjunction with opening and closing operations of opening/closing member of apparatus housing. Power is not transmitted between rotational shafts in power non-transmission state and transmitted in power transmission state. Rotational move member moves holding member causing contact parts to move second rotation transmitting member toward first and second directions, respectively. | 01-17-2013 |
20130049297 | ACTIVE DECURLER ADJUSTMENT USING ELECTRICALLY CONDUCTIVE PRESSURE ROLLERS - A system and method for decurling a sheet medium including a first penetrating roller and a second elastomeric roller mounted substantially parallel. A pressure-sensitive electrically conductive material has properties that vary with its state of compression. An actuator is operative for moving the first penetrating roller and the second elastomeric roller in a direction towards each other, to penetrate the body of the second elastomeric roller with the body of the first penetrating roller. The pressure-sensitive electrically conductive material is subject to pressure by the penetration of the first penetrating roller into the second elastomeric roller. A pair of electrical terminals applies an electrical charge across the pressure-sensitive electrically conductive material. In further embodiments, an electrical property is substantially continuously measured and the depth of penetration is substantially continuously controlled based upon closed-loop feedback of the substantially continuously measuring. | 02-28-2013 |
20130140768 | SHEET CONVEYANCE APPARATUS AND PRINTING APPARATUS - A sheet conveyance apparatus includes: a guide unit for guiding the side end of the sheet; a first roller pair arranged on the downstream side of the guide unit for conveying the sheet, including a driven roller held in contact with a whole sheet in a sheet width direction; and a second roller pair having a conveyance roller arranged on the downstream side of the roller and adapted to convey the sheet, and a plurality of pinch rollers pinching the sheet in cooperation with the conveyance roller, wherein each of the plurality of pinch rollers applies to the sheet a conveyance force inclined toward a conveyance path side end, which is nearer to the pinch roller, and wherein the smaller the distance between the pinch roller and the conveyance path side end, the greater the inclination of the conveyance force thereof. | 06-06-2013 |
20130161903 | SHEET INVERTER AND METHOD FOR INVERTING A SHEET - Sheet inverters and methods for inverting sheets are provided that guide longer length receivers through a 180 degree turn while the receivers are being transported along a transport path while reducing the possibility of jams, the extent of sheet stress experienced during inversion and reducing the risk of creating print artifacts. | 06-27-2013 |
20130207341 | MEDIA CURLING APPARATUS AND SYSTEMS INCLUDING TRI-ROLL MEDIA CURLER - A tri-roll curler apparatus includes an inlet roll, and exit roll, and a penetrating roll. The three rolls have substantially equal radii. At least one of the penetrating roll, and the inlet and exit rolls may be movable. Distances between the penetrating roll and the inlet roll, and the penetrating roll and the exit roll are substantially equal. | 08-15-2013 |
20130221612 | IMAGE FORMING APPARATUS - 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. | 08-29-2013 |
20130221613 | PAPER SHEET CONVEYANCE DEVICE FOR CONVEYING PAPER SHEET TO IMAGE FORMING SECTION AND IMAGE FORMING APPARATUS HAVING PAPER SHEET CONVEYANCE DEVICE FOR CONVEYING PAPER SHEET TO IMAGE FORMING SECTION - A paper sheet conveyance device for conveying a paper sheet to an image forming apparatus includes a corrugation roller for imparting corrugation onto both the left and right sides of a paper sheet, onto which an image has not been formed, with respect to a conveyance direction, by forming a curved portion along the conveyance direction. | 08-29-2013 |
20130228968 | MEDIUM CONVEYING APPARATUS, IMAGE FORMING APPARATUS, AND MEDIUM CONVEYING SYSTEM - 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. | 09-05-2013 |
20130228969 | SHEET CARRYING DEVICE AND IMAGE FORMING APPARATUS - A disclosed sheet carrying device includes a first carrying unit that includes a first rotary body, a first driving unit outputting a driving force at a first peripheral speed, a one-way clutch transmitting the driving force only in a sheet carrying direction, and a second rotary body driven by the first rotary body via the sheet; and a second carrying unit including a third rotary body rotating at a second peripheral speed being the first peripheral speed or more, a fourth rotary body carrying the sheet with the third rotary body, a second driving unit outputting a driving force for driving the fourth rotary body at a third peripheral speed being the second peripheral speed or more, and a torque limiter having a slip torque smaller than a sheet carrying torque and cutting off the driving force while the sheet is interposed between the third and fourth rotary bodies. | 09-05-2013 |
20130241144 | MEDIUM FEEDING DEVICE - A medium feeding device | 09-19-2013 |
20130241145 | MEDIUM FEEDING DEVICE - A medium feeding device | 09-19-2013 |
20130292900 | CYLINDRICAL SHAFT, TRANSPORT ROLLER, TRANSPORT UNIT, AND PRINTING APPARATUS - 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. | 11-07-2013 |
20140091517 | TRANSPORT APPARATUS AND RECORDING APPARATUS PROVIDED WITH THE SAME - A transport apparatus includes: a guide surface which extends in a transport direction for transporting a medium and which is configured to guide the medium to be transported; a first roller which is a driving roller for transporting the medium; a second roller which is a driven roller arranged to face the first roller; and a roller support member which rotatably supports the second roller and which is configured to be pivotable about a support shaft perpendicular to an axis of a rotational shaft of the second roller between a first position and a second position. | 04-03-2014 |
20140175740 | MULTI-FEED JUDGING DEVICE, IMAGE FORMING APPARATUS, MULTI-FEED JUDGING METHOD AND MULTI-FEED JUDGING PROGRAM - A multi-feed judging device includes a transporting unit that holds a recording medium between a driving roller and a driven roller, which is driven by the driving roller, and transports the recording medium by rotating the driving roller; a detecting unit that detects a position of the driven roller; a calculating unit that calculates a thickness of the recording medium based on positions of the driven roller when the recording medium is transported and when the recording medium is not transported; a reference value updating unit that updates a reference value of the thickness by using the calculated thickness; a judging unit that judges, using the reference value, whether recording media, which are transported after the reference value was updated, are transported while overlapping each other or not. The calculating unit calculates the thickness when the position is within a predetermined range. | 06-26-2014 |
20140191469 | SHEET CONVEYING DEVICE, IMAGE READING DEVICE PROVIDED WITH THE SAME, AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - A sheet conveying device is provided with a housing including a contact portion, a sheet conveyance path, a drive roller, a driven roller, and a support member. The driven roller is made of a resin material, and is provided with a roller portion, and a pair of shaft portions. The support member is made of a metal material and rotatably supports the driven roller. The support member includes a pair of ring portions through which each of the shaft portions is inserted, and a pair of arm portions extending in one direction from the paired ring portions and supported on the housing. The driven roller is rotated with the drive roller in a state that a downstream outer portion of the ring portion in the conveying direction is contacted with the contact portion of the housing. | 07-10-2014 |
20140210160 | SHEET FEEDER - A sheet feeder is provided that includes a driving roller, a driven roller configured to rotate in accordance with rotation of the driving roller and feed a sheet while pinching the sheet with the driving roller, an elastic shaft inserted through the driven roller and configured to rotatably support the driven roller, the elastic shaft including a protrusion formed on at least one end of the elastic shaft in an axial direction of the elastic shaft, the protrusion protruding outward in a radial direction of the driven roller, and two recess-shaped bearings configured to support two end portions of the elastic shaft in the axial direction, respectively, at least one of the bearings including a contact surface configured to contact the protrusion when the elastic shaft is supported by the bearings. | 07-31-2014 |
20140210161 | VALUABLE FILE IDENTIFICATION DEVICE - A valuable file identification device, comprising a housing; a hollow transparent drum; an annular clamping belt supported by at least two tension rollers and pressing against the transparent drum, the outer surface of the annular clamping belt and the outer surface of the transparent drum forming a clamping and conveying channel for the valuable file, and the length of the clamping and conveying channel being greater than that of the valuable file in the conveying direction; at least one information acquisition device, the information acquisition element of the information acquisition device being adjacent to the inner surface of the transparent drum, facing at least a part of the outer surface of the annular clamping belt, and being fixed relative to the side wall of the housing; and a power-driven device respectively driving the transparent drum and the annular clamping belt to move synchronously in opposite directions. | 07-31-2014 |
20140291927 | RECORDING APPARATUS - A recording apparatus includes a apparatus main body, and a unit body that forms a medium transportation path, and is configured to be attachable and detachable with respect to the apparatus main body. The unit body includes a feeding roller that transports a medium, and a driven transportation unit that transmits the drive force of the drive transportation unit to the feeding roller. The unit body is displaceable between a first position at which the driven transmission unit is connected to the drive transmission unit and a second position at which the driven transmission unit is separated from the drive transmission unit. When a user pulls out the medium, the unit body retained at the first position moves from the first position to the second position. | 10-02-2014 |
20140291928 | Image Reading Apparatus and Conveyance Apparatus - An image reading apparatus including an wall disposed on a first side of the image reading apparatus in a width direction orthogonal to a conveyance direction of a sheet is provided. The wall extends in a direction orthogonal to the width direction. The image reading apparatus further includes a first driven roller disposed on a second side in the width direction relative to the wall; a first driving roller opposed to the first driven roller; a first driven shaft inserted into the first driven roller and urged against the first driving roller; a second driven roller disposed on the second side relative to the first driven roller; a second driving roller opposed to the second driven roller; a second driven shaft inserted into the second driven roller and urged against the second driving roller; and a reader unit configured to read the image on the sheet. | 10-02-2014 |
20140312563 | MEDIUM CONVEYING APPARATUS, IMAGE FORMING APPARATUS, MEDIUM CONVEYING SYSTEM, AND MEDIUM CONVEYING METHOD - A medium conveying apparatus includes a conveying status detecting unit configured to determine a conveyance status of a medium based on a driving torque of a driving unit, wherein the conveying unit is configured to convey the medium at a reference speed, the reference speed being faster than the upstream conveying unit at least when the medium is conveyed from the upstream conveying unit, and the reference speed being slower than the downstream conveying unit at least when the medium is conveyed to the downstream conveying unit, and wherein the conveyance status of the medium is detected by the comparison of a prescribed reference torque to the driving torque of the driving unit at least when the medium is conveyed between the upstream conveying unit and the conveying unit or when the medium is conveyed between the conveying unit and the downstream conveying unit. | 10-23-2014 |
20150061219 | IMAGE FORMING APPARATUS - One aspect of the present invention provides an image forming apparatus that can prevent degradation of sheet feeding performance at low cost. A drive transmission portion | 03-05-2015 |
20150061220 | SHEET TRANSPORT MECHANISM AND IMAGE FORMING DEVICE PROVIDED WITH SAME - The sheet transport mechanism of the present disclosure is provided with drive roller, driven roller, and roller pressing mechanism. The roller pressing mechanism presses the driven roller into contact against the drive roller. The driven roller includes a central driven roller, a first rotating shaft for supporting the central driven roller, at least one pair of outside driven rollers, and second rotating shafts supporting the outside driven rollers. The roller pressing mechanism includes a central pressing mechanism, and an outside pressing mechanism. The central pressing mechanism presses the central driven roller against the drive roller. The outside pressing mechanism presses the outside driven rollers against the drive roller. | 03-05-2015 |
20150084277 | SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SHEET CONVEYING DEVICE - A sheet feed device of an image forming apparatus includes an inside cover and a lock mechanism for locking the inside cover to a housing. The lock mechanism includes a locking member and a locked member. When the inside cover is operated in a closing direction toward a closing position, the locking member abuts the locked member. At this time, a driven roller is in no contact with a conveying roller until a projection of the locking member climbs over an apex of the locked member. After the inside cover is further operated toward the closing position and the projection climbs over the apex, the driven roller contacts the conveying roller. | 03-26-2015 |
20150108715 | SHEET CONVEYING APPARATUS, DRIVE TRANSMISSION APPARATUS AND IMAGE FORMING APPARATUS - A sheet conveying apparatus includes a conveying member conveying and rotating a sheet, a moving member configured to be movable between a first guiding position and a second guiding position, a first abutting portion configured to stop the moving member at the first guiding position, a second abutting portion configured to stop the moving member at the second guiding position, and a planetary gear mechanism. The planetary gear mechanism includes a first rotating element configured to rotate in a first direction and a second direction which is opposite to the first direction, a second rotating element configured to rotate the conveying member by drivenly rotating with the first rotating element, and a third rotating element configured to move the moving member from the second guiding positon to the first guiding positon by drivenly rotating with the first rotating element rotating in the first direction, and move the moving member from the first guiding position to the second guiding position by drivenly rotating with the first rotating element rotating in the second direction. | 04-23-2015 |
20150298933 | SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS WITH THE SAME - A sheet conveying device ( | 10-22-2015 |
20160016742 | Paper Sheet Conveyance Device - This paper sheet conveyance device ( | 01-21-2016 |
20160251177 | DRAW-IN DEVICE FOR SHEET-TYPE ARTICLES | 09-01-2016 |