Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Rotary

Subclass of:

271 - Sheet feeding or delivering

271800100 - FEEDING

271018000 - Separators

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
271110000 Control of separator responsive to sensing of sheet 59
271117000 Separator adjustable or retractable relative to pack 44
271121000 With means to restrain feed of next sheet 43
271126000 With means to urge pack toward separator 30
271114000 Variably or intermittently driven 8
271119000 Separator having non-uniform periphery 5
20100013144PAPER FEED APPARATUS - In one embodiment of the invention, in a paper feed apparatus having a half-moon roller disposed above a plurality of sheets of paper stored in a stacked manner, and an auxiliary roller provided along one end of a half-circumferential face of the half-moon roller, the half-moon roller being rotated in a state in which a topmost sheet of paper has been put in contact with a height regulating member due to the sheets of paper being biased upward, so that the auxiliary roller and the half-circumferential face of the half-moon roller are successively pushed against the topmost sheet of paper, and while the sheets of paper are pushed down by the auxiliary roller or the half-circumferential face of the half-moon roller, the topmost sheet of paper is pulled out by the half-circumferential face of the half-moon roller: the one end of the half-circumferential face of the half-moon roller is separated from the auxiliary roller, and a curvature of the one end of the half-circumferential face is gradually increased closer to the auxiliary roller.01-21-2010
20090008866IMAGE FORMING APPARATUS - Disclosed is an image forming apparatus equipped with a pick-up roller to pick up a sheet. The image forming apparatus includes a sheet feeding tray, in which sheets are stacked, and a pick-up roller to pick up sheet from the sheet feeding tray. The pick-up roller includes a pick-up section to pick up the sheet and a feed section to deliver a sheet feeding pressure greater than that of the pick-up section to the sheet, so that a component corresponding to a feed roller can be removed, thereby simplifying the structure of the image forming apparatus and lowering the height of the image forming apparatus.01-08-2009
20110024972Device and method for depositing products - A device and a method for the depositing of products, in particular print shop products that are folded and/or conveyed in an copy stream (S, S02-03-2011
20090014945SHEET-FEEDING MECHANISM, SHEET-FEEDING DEVICE, AND IMAGE FORMING APPARATUS - An object of the present invention is to improve separability with respect to other sheet without damaging sheets in a sheet-feeding mechanism used in an image forming apparatus. For the purpose of accomplishing the object, the sheet-feeding mechanism includes: a feeding roller (01-15-2009
20100207317PAPER-SHEET FEEDING DEVICE WITH KICKER ROLLER - A paper-sheet feeding device including a kicker roller configured to contact a forefront paper-sheet of a plurality of stacked paper-sheets and kick out the forefront paper-sheet; a feed roller to feed-out the paper-sheets to be kicked out by the kicker roller; and a press-fitting roller press-fit against the feed roller to provide a gate unit adapted to separate the paper-sheets to be fed by the feed roller, into one sheet. The kicker roller includes a base part and a high friction part formed in part of the outer circumference of the base part along the circumferential direction and configured to kick out the forefront paper-sheet. The feed roller includes a base part and a high friction part formed over the entire outer circumference of the base part and configured to contact the surface of the paper-sheet to be kicked out by the kicker roller to perform feed-out of the paper-sheet.08-19-2010
271112000 Suction assisted 3
20100025920VACUUM SHEET FEEDER - A vacuum feeding mechanism for a document handling apparatus, the feeding mechanism comprising: an adjustable pick for separating a stack of documents from a downstream transport system; a rotatable wheel connected to a vacuum port and operable to pull a document by suction from the top of the stack toward the wheel and move the document over the pick to the downstream transport system; the wheel and the pick being separated by a clearance distance; means for determining adjustment coordinates in dependence upon characteristics of a document in the stack; wherein the position of the pick is automatically adjustable in two independent dimensions in dependence upon said adjustment coordinates.02-04-2010
20100001456PAPER SHEET FEEDING DEVICE - A paper sheet feeding device for sequentially feeding, to a conveyance path, mail items simultaneously received includes a suction mechanism provided adjacent to a pickup position. The suction mechanism includes a chamber having an opening opposed to the pickup position, a guide plate provided at the opening of the chamber, and two projections vertically arranged on the surface of the guide plate. When air is drawn from the pickup position through a plurality of suction holes formed in the guide plate, the leading one of the mail items closest to the pickup position is drawn to the pickup position, and is curved between the two projections. A handling nozzle blows air into the space that is formed between the leading mail item and a subsequent mail item when the leading mail item is curved.01-07-2010
20110254220SHEET HANDLING APPARATUS - According to one embodiment, a pickup device includes a separation mechanism for applying, to a to-be-subsequently-fed mail item picked up from accumulated mail items, a separation force exerting in a direction opposite to a mail item pickup direction. The separation mechanism comprises an outer drum with suction holes that face the to-be-subsequently-fed mail item during rotation, an inner drum provided inside and concentric with the outer drum and having air holes that overlap with the suction holes during rotation, a pump for drawing air through the suction holes facing the to-be-subsequently-fed mail item and the air holes overlapping with them to attach the to-be-subsequently-fed mail item to the outer peripheral surface of the outer drum. A controller rotates the inner and outer drums in association with each other to apply a sufficient separation force to the to-be-subsequently-fed mail item.10-20-2011
271113000 Separator rotating in plane of foremost sheet 1
20090322015AUTOMATIC MACHINE FOR THE DEPOSIT AND WITHDRAWAL OF CASH - Automatic machine (12-31-2009
Entries
DocumentTitleDate
20090218753DEVICE FOR THE TORQUE LIMITATION IN A MACHINE FOR PROCESSING MEANS OF PAYMENT - The present invention relates to a device for the torque limitation in a machine for processing means of payment. The invention has use as a device for limiting torque in a machine for processing means of payment, wherein the device for the torque limitation includes two elements transmitting a torque, the two elements having magnets which are disposed in the two elements with an angular distribution of the same kind, the magnets connecting the two elements to each other in a non-positive fashion, and the connection of the two elements being disrupted when a maximum transmittable torque is exceeded.09-03-2009
20100044952ROLLER APPARATUS AND RECORDING APPARATUS - A roller apparatus includes: a first roller provided in a curved medium transporting path and driven by a power source; and a second roller driven and rotating with a medium nipped between it and the first roller, wherein the second roller is located on a side in which, when the leading end of the medium enters between the rollers, the leading end of the medium comes into contact with the second roller due to the restoring force of the medium with a curved state as a result of the curved medium transporting path, and has on its outer circumferential surface a guide section for guiding the leading end of the medium between the rollers.02-25-2010
20130082437IMAGE RECORDING DEVICE - An image recording device includes a tray configured to hold a first recording medium, an insertion guide configured to move between a guide position for guiding a second recording medium into a common path and a non-guide position, a conveyor configured to convey the tray along the common path in a first direction and to convey the second recording medium along the common path in a second direction opposite to the first direction, a recording unit configured to record an image selectively on the first recording medium and the second recording medium, a stopper disposed along the common path, and a moving unit configured to move the stopper between a retracted position and a protruding position in response to movement of the insertion guide between the non-guide position and the guide position. The stopper in the protruding position protrudes into the common path to stop the tray.04-04-2013
20080277863SHEET FEEDER, IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS - A paper press member 11-13-2008
20090045567PRINTING MEDIUM TRANSFERRING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A printing medium transferring device and an image forming apparatus having the same, which are capable of stably conveying a printing medium supplied to a printing engine while ensuring a manual feeding path for the printing medium includes a conveyer roller which conveys a printing medium to the printing engine, a plurality of printing medium pressing devices which include pressing rollers installed along an outer circumference of the conveyer roller such that the printing medium is pressed in a normal direction of a surface of the conveyer roller, and a releasing device which allows at least one pressing roller to be moved apart from the conveyer roller in order to provide a manual feeding function.02-19-2009
20090302525DISCHARGE OF PAPER OR OTHER LEAVES FROM A STACK - A discharge of paper or other leaves from the top (S) of a stack is by a rotating feed-roller (12-10-2009
20120112403SHEET FEED ASSEMBLY - A sheet feed assembly with a pair of rollers to feed sheets of media along a feed path. The roller pair has a drive roller and an idler roller. The drive roller is mounted between two bearings and for rotation about its longitudinal axis. The idler roller is shorter than the drive roller and is held against the drive roller by two guide formations and at either end. The guide formations bias the idler roller against the drive roller while allowing some lateral displacement of the idler roller from the drive roller.05-10-2012
20120112402RECORDING MEDIUM DELIVERY DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A sheet delivery device (05-10-2012
20120235347SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - A link member is rotatably supported by a lifting plate. When the lifting plate moves upward and downward, the movement of the link member is guided by a guide portion provided on a link guide hole. Before sheet feeding starts, the movement of the link member is regulated by a holding portion provided on a lower end of the guide portion so as to hold the lifting plate in a standby position against a biasing force of a feed spring. When the sheet is fed, a feed cam rotating integrally with a feed roller presses the link member to release the link member from being locked by the holding portion of the link guide hole to thereby make the link member movable along the guide portion.09-20-2012
20090189335DEVICE FOR OPTIMALLY SELECTING MAILPIECES - A mailpiece selector device for separating mailpieces one-by-one from a stack of mailpieces and for transporting them downstream, said mailpiece selector device comprising a first guide co-operating with a plurality of opposite selector rollers to select said mailpieces one-by-one and for transporting them downstream, said first guide being able to pivot about a pivot axis in opposition to first resilient return means and said first guide having a reference plate designed to co-operate with a magnet that is secured to a framework of the device to prevent said first guide from pivoting in this way below a predetermined mailpiece thickness.07-30-2009
20110278788RETARD ROLLER AND RETARD ROLLER MODULE HAVING SUCH RETARD ROLLER - A retard roller of an automatic document feeder provides a frictional force to separate plural documents from each other. The retard roller can provide a first damping torque and a second damping torque with different directions. The second damping torque is smaller than the first damping torque. As such, the frictional force exerted on the document is reduced for returning the document out of the automatic document feeder. A retard roller module having such a retard roller is also provided.11-17-2011
20110121508AUXILIARY FEED CONVEYOR - Apparatus is disclosed for feeding sheets of paper printed by a printer to a sheet processing device, such as a print on demand (POD) book publishing system. The printer has a sheet discharge through which each sheet printed by the printer is discharged or ejected one sheet at a time. The printer heats the sheets to an elevated temperature as the sheets are printed, and the sheets printed by the printer and discharged from the printer carry a static electricity charge. The sheet processing device has a sheet infeed located at a location (height) different from the printer sheet discharge. The apparatus has a sheet conveyor that has an inlet, an outlet, and a conveyor path between the conveyor inlet and the conveyor outlet for conveying the sheets from the printer sheet discharge to the sheet processing device sheet infeed. The sheets are accumulated in a stack within the sheet processing device. The apparatus has at least one fan that blows air on each the sheet as the sheet is conveyed along the conveyor path so as to at least partially cool the sheet, and the apparatus has a static electricity eliminator located along the conveyor path for at least partially eliminating the static electricity from the sheets as they are conveyed from the printer to the sheet processing device such that as the sheets are accumulated in the stack they are sufficiently cooled and have sufficient static electricity removed therefrom so that the sheets may be uniformly stacked one on the other in the stack.05-26-2011
20110298172DOCUMENT CONVEYOR - A document transporter is provided which has a conveyor 12-08-2011
20110285075PAPER SHEET CASSETTE AND IMAGE FORMING DEVICE - A paper sheet cassette includes a paper sheet containing part for loading and containing paper sheets, a pair of side edge positioning members provided so as to move toward or away from each other in a width direction of the paper sheets for determining a position of the paper sheets in their width direction, an interlock mechanism for synchronously moving the pair of side edge positioning members toward or away from each other, a latch member which is movable along with a first member of the pair of side edge positioning members and is provided with a lock tooth portion formed thereon, and a lock member which has a latch claw which can be brought into or out of engagement with the lock tooth portion and is movable along with a second member of the pair of side edge positioning members.11-24-2011
20120098186PAPER PICKUP STRUCTURE OF PAPER FEEDING DEVICE - A paper pickup structure of a paper feeding device is provided. The paper pickup structure includes: a rotating arm, including a connection portion, a base, and a combination member, in which the connection portion and the combination member are located on the base; a first gear, combined with the connection portion to be switched between a forward rotation state and a reverse rotation state, so as to drive the rotating arm to rotate; a limiting member, located on the rotating arm, in which one end of the limiting member is combined with the combination member of the rotating arm, or one end of the limiting member is separated from the combination member through the rotation of the rotating arm; a second gear, located on the base; and a third gear, driven by the second gear to rotate when the rotating arm rotates to a predetermined position.04-26-2012
20120187621APPARATUS FOR FEEDING SHEETLIKE ITEMS - An apparatus for feeding sheetlike items from a stack has an item feed means for separating and feeding a single item from the stack. A holder receives the stack and has a platform for supporting the stack, and a first and a second side guide for guiding items in a feeding direction. The platform is movable into a feeding position in which separating and feeding of a single item is enabled and into a loading position in which the holder is able to receive a stack. A side guide adjustment mechanism is provided for moving at least one side guide toward and away from the other side guide. A drive device is operably connected to the side guide adjustment mechanism. The drive device is out of engagement with the side guide adjustment mechanism when the platform is in the feeding position.07-26-2012
20090315252Paper feeding apparatus and paper feeding method thereof - A paper feeding apparatus comprises a fluid-supply device; a connecting pipe communicating with the fluid-supply device; and a plurality of force units connecting to the connecting pipe, each force unit having a pressing wheel on one end thereof; wherein each pressing wheel operates in coordination with a paper feeding wheel for feeding paper. The force units output equal force according to the same hydraulic pressure so that the pressing wheels provide the same component force to the corresponding paper feeding wheel so as to improve the quality of paper feeding. Furthermore, a method for using the paper feeding apparatus is disclosed.12-24-2009
20090256305FEEDING DEVICE - In a feeding device, a first friction pad and a second friction pad are disposed on a circumferential surface of a pick roller so that a first contact area and a second contact area overlap each other. Thus, to a conveyance-target medium, which is either one of a conveyed medium and a separation-target medium, pressing forces are successively applied by the first friction pad or the second friction pad over the first contact area to the second contact area. Therefore, the conveyance-target medium, which is either one of the conveyed medium and the separation-target medium, successively receives a separation force in a total contact area wider than an area when receiving a separation force only in either one of the first contact area and the second contact area. With this, the capability of separating the conveyed medium and the separation-target medium can be increased.10-15-2009
20100084805Image forming apparatus - An image forming apparatus includes a medium placing portion on which a medium is placed, a feed roller rotatably provided in contact with the medium placed on the medium placing portion so as to feed the medium, guide members disposed on both sides of the feed roller for guiding the medium being fed. The guide members are movable in a direction substantially perpendicular to a surface of the medium. A biasing unit is provided for biasing the guide members in a direction toward the medium.04-08-2010
20100078873SINGULATING SHEET FEEDER - A singulating sheet feeder includes a deck for slidably supporting a plurality of sheets and a drive system for moving the sheets along the deck. The drive system includes a drive element for engaging a lowermost sheet to move the sheets into a shingled arrangement. The sheet feeder further includes a transport element for transporting the lowermost sheet away from the plurality of sheets and a separator element proximate to the transport element including a substantially planar surface for engaging leading edges of subsequent sheets to retard motion of the subsequent sheets as the lowermost sheet is transported, wherein the substantially planar surface is disposed at an acute angle to the deck.04-01-2010
20100090392SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS - The present invention provides a sheet conveying apparatus and an image forming apparatus which can obtain high operability and productivity when a tabbed sheet is conveyed. In the representative configuration thereof, a trailing edge regulation plate is abutted on tab portions of some of tabbed sheets stacked and supported on a tray to regulate the position of the tabbed sheet. Tab portion regulation portions of a tabbed sheet regulation unit provided at the upper end of the trailing edge regulation plate are abutted on the tab portion of the tabbed sheet formed in the position where the tab portion is not abutted on the regulation portion and regulate the position of the tabbed sheet. The tab portion regulation portions of the tabbed sheet regulation unit can be moved. The tab portion regulation portions are moved with the lifting of the tray when being abutted on the lifting tray.04-15-2010
20110198799SEPARATOR FOR SEPARATING ENVELOPES FROM A STACK - A method for separating envelopes from a stack using a separator having a feeding roller for exerting a force onto the envelope, urging it in a direction tangential to its circumference and parallel to a separating plane, and having a deflecting surface for deflecting a leading edge of the envelope as it is urged in the tangential direction. The feeding roller and the deflecting surface bound a feeding path having a width, and starting at the separating position. Both feeding roller and deflecting surface include portions each extending from or from beyond opposite lateral sides of the feeding path inwardly across a lateral outer portion of the feeding path.08-18-2011
20090283959AUTOMATIC IMAGE PROCESSING APPARATUS AND SHEET FEEDING DEVICE THEREOF - An automatic image processing apparatus includes a sheet feeding device and an image processing device. The sheet feeding device supports a plurality of sheets and feeds the sheets one by one. The image processing device receives the sheets coming from the sheet feeding device one by one, and feeds and processes the sheets one by one. The sheet feeding device is removably connected to the image processing device, and receives mechanical power from the image processing device and thus feeds the sheets one by one. The sheet feeding device for the automatic image processing apparatus is also disclosed.11-19-2009
20090008865RECORDED MEDIUM FEEDING DEVICE AND RECORDING APPARATUS - A recorded medium feeding device includes a pickup roller that feeds recorded medium dowstream from a setting position by contacting with the recorded medium and rotating and a separating means for separating recorded medium to be fed and subsequent recorded media from the next page onward. The positions of a nip point of the separating means and a place where the pickup roller contacts the recorded medium in the direction orthogonal to the recorded medium feeding direction with respect to a recorded medium of a predetermined size to be fed by the pickup roller are located within a range deviated to one side from the center of the recorded medium of the predetermined size. A path elongating portion that elongates the feed path length of the recorded medium by abutting the recorded medium is apart from the nip point and the place where the pickup roller contacts the recorded medium.01-08-2009
20100102500Image Reading Apparatus and Image Forming Apparatus - An image reading apparatus, which may be used in an image forming apparatus includes a document table including a flat surface for receiving a document, and a document cover that can be moved between a first position covering the flat surface and a second position exposing the flat surface. The image reading apparatus may further include an automatic document feeder disposed on the document cover that can automatically feed a document toward the flat surface. The automatic document feeder includes a gear train, and a gear cover covering a portion of the gear train, wherein the gear cover includes a protrusion that protrudes downward below the flat surface of the document table.04-29-2010
20080246210PAPER FEEDING DEVICE - A paper feeding device comprises an upper frame, a pickup roller assembly connected to the upper frame and a lower frame. The pickup roller assembly includes a roller frame, a separating roller, a pickup roller, and a belt sleeved on both the separating roller and the pickup roller. The separating roller and the pickup roller are connected to the roller frame. The belt impels the separating roller and the pickup roller to press against the roller frame. When the separating roller rotates, the friction created between the separating roller and the roller frame and the friction created between the pickup roller and the roller frame drives the pickup roller assembly to rotate, then the paper is fed into the paper feeding device. The structure of the paper feeding device is simple and the cost is lower than the conventional one, moreover, it is convenient to assemble.10-09-2008
20090166955APPARATUS FOR AUTOMATIC DOCUMENT FEEDING - A document input device having a gravity feed paper tray is adapted such that the separator pad is mounted on the base, as opposed to the cover, so that when the cover is opened to access the paper path (as during clearing of a paper jam), paper in the paper tray is held in place by the force of the separator pad against the pick roller, even though the cover is open. The separator pad may be attached to a rod that is attached to the base so as to permit the rod and separator pad to remain in place when the cover is in the open position. A leaf spring may be placed between the rod and the separator pad for biasing the separator pad against the pick roller. Also, the cover may include a spring for biasing the separator pad against the pick roller when the cover is in the closed position.07-02-2009
20080309001SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS - A boundary is formed between a separating pad holding member and a separating pad in a sheet conveyance direction such that a sheet feeding device includes: a feeding roller having a feeding roller surface at a part in a rotational direction; the separating pad which separates the sheet at a holding portion between the feeding roller surface and the same; the separating pad holding member which presses the separating pad against the feeding roller; and a rolling member which is disposed coaxially with the feeding roller and abuts against the separating pad free from the holding state in cooperation with the roller surface; the feeding roller surface abutting against the separating pad holding member and the separating pad in this order, respectively, via the sheet S during the rotation of the feeding roller.12-18-2008
20080272536Paper feeding device, recording apparatus and information processing apparatus having the same - A paper feeding device includes: a reference guide surface that contacts a lateral end portion of a sheet-shaped medium along a guide path for transporting the medium; a tapered guide surface that is inclined outward from the reference guide surface toward an upstream side of a transport direction and contacts the lateral end portion of the medium; a paper feeding roller that rotates to transport the medium in a direction parallel to the reference guide surface while the paper feeding roller contacts a surface of the medium; and a medium cassette that stores the medium. The medium cassette stores the medium so as to be inclined with respect to the reference guide surface so that a rear end of the lateral end portion of the stored medium at a side of the reference guide surface is positioned outside an imaginary extension surface of the reference guide surface.11-06-2008
20100270731PAPER FEEDING DEVICE - A paper feeding device includes a supporting base and a paper arranging module. The supporting base has a supporting surface, an inclined supporting plane, and a slot located at the supporting surface. The paper arranging module includes a guiding structure fixed under the supporting surface, a paper-pushing structure slidably disposed on the guiding structure, an elastic element interconnected between the paper-pushing structure and a fixed end, and a gear disposed on the guiding structure. The gear has an engaging part for engaging with and driving the paper-pushing structure to move toward the inclined supporting plane along the slot for arranging the paper sheets supported on the supporting base, thus facilitating subsequent paper dividing. When a non-engaging part of the gear corresponds to the paper-pushing structure, the paper-pushing structure is restored to an original position by an elastic force of the elastic element.10-28-2010
20090140490DOCUMENT CONVEYING DEVICES AND IMAGE READING DEVICES COMPRISING SUCH DOCUMENT CONVEYING DEVICES - A document conveying device includes a conveying path and a feed unit. The feed unit includes a tray including a document positioning surface configured to receive documents thereon, in which the document positioning surface has a hole formed therethrough. The feed unit also includes a separation roller which is rotatably supported by a drive shaft extending in a direction orthogonal to a document conveying direction and is configured to contact an uppermost document of the documents and to separate and convey the uppermost document. The separation roller includes a first end and a second end opposite the first end. Moreover, the feed unit includes a document sensor including a detection portion configured to detect the documents and to selectively move between a first position in which the detection portion projects from the document positioning surface via the hole and a second position in which the detection portion is retracted from the document positioning surface via the hole. In addition, the feed unit includes a casing pivotably mounted on the drive shaft. The casing includes a plate extending adjacent to the first end of the separation roller in the document conveying direction, and the first end of the separation roller and the detection portion are positioned closer to the second end of the separation roller than the plate of the casing.06-04-2009
20090140489MEASURING DEVICE, SHEET-SHAPED MATERIAL TRANSPORTING DEVICE, IMAGE FORMATION DEVICE AND MEASURING METHOD - A measuring device, wherein a feed-out member feeds out an uppermost one of plural sheet-shaped materials stacked on a base by rotating in contact with the uppermost sheet-shaped material, has a detector that detects a force imparted to the base and the sheet-shaped materials not in contact with the feed-out member, the force being generated by feeding-out the uppermost sheet-shaped material.06-04-2009
20090051100Paper transport device, paper processing apparatus, and image forming apparatus - A paper transport device is configured to independently drive a paper ejecting roller when predetermined abnormal events occur. When paper-jamming occurs and if no paper is present downstream of a jammed paper or a preceding paper that is present most downstream is located upstream of a predetermined position, the paper ejecting roller is stopped to prevent ejection of papers outside of the paper transport device. When paper-jamming occurs and if a preceding paper that is present most downstream is located downstream of the predetermined position, the paper ejecting roller is independently driven to complete ejection of the preceding paper.02-26-2009
20110221120MEDIUM FEEDING DEVICE, RECORDING APPARATUS - A medium feeding device is provided in order to address the problem of double feeding which occur when feeding media to be fed having different hardness. A medium feeding device includes an arm that supports a feeding roller and a placement section wherein a portion of the placement section that opposes the feeding roller is displaceable in directions to come into contact with and be separated from the feeding roller. The medium feeding device is configured such that, when the feeding roller receives a force from the medium as a reaction force against a force acting on the medium by the feeding roller, which causes the arm to move in a direction that causes the feeding roller to move toward the medium, the portion of the placement section is displaced if a pressing force of the feeding roller against the medium exceeds a predetermined amount of force.09-15-2011
20090212482DEVICE FOR SELECTING MAILPIECES - A mailpiece selector device for separating mailpieces one-by-one from a stack of mailpieces and for transporting them downstream, the device comprising at least a first guide co-operating with a plurality of opposite selector rollers to select said mailpieces one-by-one and to transport them downstream, said first guide being comb-shaped and able to pivot about a first pivot axis in opposition to first resilient return means, one end of at least one tooth of the comb being coated with a wear-resistant material.08-27-2009
20080315500Paper Feed Mechanism and Image Generating Apparatus - This paper feed mechanism includes a paper feed cassette integrally having a paper contact portion on a position deviating from the center of a rear-side inner wall surface in the cross direction by a prescribed distance in the cross direction and an apparatus body mountable with the paper feed cassette, and the apparatus body includes a driving portion rotating a paper feed roller in a paper feed direction and a paper discharge direction and a control portion bringing the rear end of the paper into contact with the paper contact portion for generating torque for the paper and thereafter transporting the paper to the apparatus body in paper feeding.12-25-2008
20080315499Methods And Devices For Improving The Reliability Of Feeding Media Sheets Within An Image Forming Device - The present application is directed to devices and methods for moving media sheets in an image forming device. In one embodiment, a contact member includes a contact roller that contacts a top-most media sheet in a stack of media sheets positioned on a support surface in an input area of the image forming device. A hub extends outward from an axial side of the contact roller. The hub includes a smaller length than the contact roller, forming a gap between the hub and the top-most media sheet when the contact roller is in contact with the top-most media sheet. The hub prevents or reduces transverse buckling of the top-most media sheet when it is moved from the stack of media sheets.12-25-2008
20100264579SHEET CARRYING APPARATUS HAVING SHEET PRESSING MECHANISM, AND SHEET CARRYING METHOD USING SHEET CARRYING MECHANISM - A sheet carrying apparatus having a sheet pressing mechanism according to an embodiment of the invention includes: a paper supply tray in which sheets for printing an image thereon are stacked; a pickup roller which is abutted from above against a sheet on a top layer of the sheets stacked in the paper supply tray, then rotates and move the sheet on the top side; and a holding plate which presses the top layer sheet from above in a part where the pickup roller is abutted against the top layer sheet.10-21-2010
20100052244Recording Sheet Transporting Apparatus and Image Forming Apparatus - A recording sheet transporting apparatus includes a first roller which transports a recording sheet, a first transmitting gear to which a drive force is transmitted from a drive source, a second roller which is movable in a radial direction with respect to the first roller, a second transmitting gear which is engaged with the first transmitting gear and which transmits the driving force to the second roller, a universal joint which connects an end portion of the second roller and one end portion of the second transmitting gear, a bearing member which has a cylindrical surface and rotatably supports the other end portion of the second transmitting gear by the cylindrical surface, and a supporting member which tiltably supports the bearing member in a movement direction of the second roller.03-04-2010
20100264578Media Sheet Exit Baffle - An apparatus for directing media sheets from a media tray to a feed roller may be coupled to a feeder module. The apparatus includes a support member, a coupler, and a media director. The support member extends across a portion of a media tray width. The coupler extends from the support member and is configured to engage a feeder module to install the support member in a printer. The media director extends from the support member, and is configured to direct a leading edge of a media sheet moving from the media tray towards a feeder nip in the feeder module. The media director is vertically displaced from the support member and the coupler.10-21-2010
20100156031FEEDING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - Disclosed herein are a printing media feeding unit and an image forming apparatus having the same. The feeding unit may include a feeding roller and a reverse roller arranged parallel to, and to opposingly face, each other. The feeding roller may be supported on a feeding shaft so as to rotate together with the feeding shaft. The reverse shaft may be supported on a reverse shaft so as to rotate together with the reverse shaft. The reverse shaft is arranged to be movable along the radial direction in compensation of the radial movement of the reverse roller with respect to the feed roller that may result from the friction between printing media and the reverse roller so as to improve the performance of the reverse roller in returning of extraneous sheets of printing media to prevent simultaneous feeding of multiple sheets of printing media.06-24-2010
20100213664MOTOR INSIDE PICK-UP ROLLER - A pick-up assembly moves a sheet of recording medium from a stack of recording media. The pick-up assembly includes a pick arm having a first end and a second end. Notably, a pivotal mounting is located proximate the first end of the pick arm; and a pick-up roller is mounted proximate the second end of the pick arm. Lastly, a motor and a transmission are located inside the pick-up roller.08-26-2010
20100237554RECORDING APPARATUS - A movable component which can be moved between a protruding position in which the movable component protrudes from the outer chute into a curved path toward an inner chute so as to be able to contact the recording medium and a retracted position in which the degree of protrusion of the movable component from the outer chute into the curved path is smaller than the degree of protrusion in the protruding position, and the movable component is moved from the protruding position to the retracted position at a timing on or after a first timing and before a second timing.09-23-2010
20110057381INSERT FEEDER APPARATUS - A sheet separator for a paper handling apparatus comprising: a pick-up shaft having an axis; a plurality of pick-up wheels mounted on the shaft for rotation about the axis; and wherein the axial location, on the pick-up shaft, of at least one pick-up wheel is adjustable.03-10-2011
20100123283SHEET FEEDING APPARATUS, IMAGE PROCESSOR AND SHEET FEEDING METHOD - A sheet feeding apparatus includes: a transporting unit that transports a sheet; guiding members that regulate side portions, in a sheet transporting direction, of the sheet, and that guide the sheet being transported; a distance changing member that is configured to be movable, that is coupled with the guiding members, and that changes a distance between the guiding members; and a restricting unit that restricts movement of the distance changing member in conjunction with a transporting operation of the transporting unit.05-20-2010
20090273136Method And System For Feeding Media Sheets Into Media Processing Device - Disclosed are a method, a system and a computer program product for feeding a media sheet in a media processing device. The method includes receiving a user input associated with at least one attribute of the media sheet. Further, the method includes exerting a normal force on the media sheet using a pick roller for feeding the media sheet into the media processing device. The normal force exerted on the media sheet is based on the user input.11-05-2009
20110115150SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A sheet conveyance apparatus includes a reference surface extending along a sheet conveyance direction and configured to regulate the position of a side edge of a sheet to be conveyed, a skew conveyance mechanism configured to convey the sheet obliquely so that the side edge of the sheet collides against the reference surface, and a sheet deforming unit configured to deform the side edge of the sheet when the sheet is conveyed toward the reference surface by the skew conveyance mechanism.05-19-2011
20110115149SHEET GUIDE, SHEET CARRYING DEVICE AND IMAGE FORMING DEVICE THEREWITH - A sheet guide is rotationally supported by a shaft member to rotate freely on the shaft member. The sheet guide includes a support part that supports the sheet guide on the shaft member, a guide part that contacts sheets and guides sheets in a predetermined direction, and a weight, which has a predetermined weight, is arranged on an opposite side of the support part from the guide part, wherein the weight causes the guide part to rotate to a predetermined position when an external force applied to the guide part is released.05-19-2011
20110115148MEDIUM CARRYING MECHANISM AND IMAGE FORMING DEVICE - A medium carrying mechanism includes a carrying roller that carries a medium, two correction rollers for medium correction that face the carrying roller and that are positioned along a medium carrying direction, a bracket that includes a rotation shaft and that supports the correction rollers, a supporting member that supports the rotation shaft, and a bias member that biases the rotation shaft toward the carrying roller.05-19-2011
20110115147SHEET PICK-UP DEVICE OF AUTOMATIC DOCUMENT FEEDER - A sheet pick-up device of an automatic document feeder is used for feeding a sheet into a sheet feeding path. The sheet pick-up device includes a sheet pick-up module and a sustaining element. The sheet pick-up module includes a driving shaft and a sheet pick-up arm coupled to the driving shaft. The sheet pick-up arm is driven by the driving shaft to be rotated to either a standby position or a sheet feeding position. The sustaining element is pivotally coupled to the sheet pick-up arm. When a distal end of the sustaining element is rotated to be in contact with the sheet feeding path, the sheet pick-up arm stays in the standby position.05-19-2011
20090033022Paper feed roller and fabrication method thereof - A paper feed roller which can secure rigidity and precision and can cut the machining cost and material cost, as well as a fabrication method thereof are provided.02-05-2009
20110241278SHEET FEEDER AND SCAN APPARATUS WITH SHEET-STOPPING FUNCTION INDEPENDENT OF MOVEMENT OF PICK-UP MECHANISM - In a scan apparatus, a sheet feeder having a sheet-stopping function includes a rotating shaft, a sheet-input roller, a pick-up mechanism and a sheet-stopping mechanism. The pick-up mechanism, including a bracket mounted on the rotating shaft and a pick-up roller mounted on the bracket, picks up a sheet from a paper tray. The sheet-stopping mechanism, driven independent of movement of the bracket by the rotating shaft, switches between a sheet-stopping state and a sheet-non-stopping state. The rotating shaft rotates in a first direction to enable the sheet-stopping mechanism to enter the sheet-non-stopping state and rotates in a second direction to enable the sheet-stopping mechanism to enter the sheet-stopping state, in which a passage to the sheet-input roller is blocked up.10-06-2011
20110241279SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - A sheet feeding apparatus includes a sheet stacking portion for stacking a sheet, a sheet feeding roller for feeding the sheet stacked on said sheet stacking portion, a supporting member, rotatably supported by a base member, for rotatably supporting said sheet feeding roller, and a spring stretched between the base member and an acting portion of the supporting member. The acting portion of the supporting member is located downward with respect to a rotation center of the supporting member when a sheet stacking amount is small, and the acting portion of the supporting member is located upward with respect to a rotation center of the supporting member when a sheet stacking amount is large.10-06-2011
20090166954SHEET FEED DEVICES AND IMAGE RECORDING APPARATUS COMPRISING SUCH SHEET FEED DEVICES - The invention describes a sheet feed device having a sheet tray having a bottom plate defining a first portion of a storing portion that receives sheets therein, a feed roller, a separation plate, and a recessed portion formed in the separation surface. The feed roller moves to contact a sheet of the sheets, and to feed the sheet. The separation plate is disposed at a downstream end of the sheet tray and extends in a width direction. The separation plate has a separation surface which is inclined with respect to the bottom plate of the sheet tray, and defines at least a second portion of the storing portion. The recessed portion is formed in the separation surface and extends toward a downstream end of the separation surface. The separation plate is configured to separate the sheet from the sheets as the feed roller feeds the sheet.07-02-2009
20090218754SHEET ACCOMMODATING DEVICE AND IMAGE RECORDING APPARATUS - A sheet accommodating device including: a tray configured to accommodate a sheet; and a pressing member configured to press the sheet accommodated in the tray, wherein the pressing member includes a guide portion configured to guide, where the sheet accommodated in the tray is transferred, the transferred sheet toward a downstream side in a sheet transferring direction in which the sheet is transferred.09-03-2009
20100038842PAPER-SHEET FEEDING DEVICE - A torque limiter between a pressure roller and shaft, which is configured to allow the pressure roller to rotate in a feed-out direction of a paper-sheet P, relative to the shaft, when force greater than predetermined torque T is applied to the pressure roller along a circumferential direction thereof, while interlocking the pressure roller with the shaft, when the force applied to the pressure roller along the circumferential direction thereof is less than the predetermined torque. The predetermined torque is set less than frictional force N02-18-2010
20120242033SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - The sheet feeding apparatus includes a feeding roller that includes an arc-shaped friction portion and a notch portion, and causes the friction portion to feed the sheet; a feeding motor rotationally driving the feeding roller; a separation pad that presses the sheet fed by the friction portion on a surface other than a surface at the friction portion, and separates a double-fed sheet; and a feeding spring that causes the sheet supporting portion to wait below the feeding roller such that the sheet supported on the sheet supporting portion is not in contact with the friction portion until the friction portion reaches the separation pad, and, when the friction portion reaches the separation pad, moves up the sheet supporting portion to an abutting position at which the sheet supported on the sheet supporting portion is pressed against the friction portion and the friction portion feeds the sheet.09-27-2012
20100059928PAPER SUPPLY APPARATUS AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME - A paper supply apparatus for conveying paper to an image forming apparatus has a paper accommodating unit to accommodate paper and to be drawn out from an accommodating space in a main body of the image forming apparatus. The apparatus also has a handle to rotate about an axis extending in the width direction of the paper in the paper accommodating unit. The handle includes a first edge that moves toward the paper accommodating unit upon rotation of the handle and a second edge that opposes the first edge. A link on the first edge of the handle releases engagement with the main body when the first edge moves toward the paper accommodating unit. A flapper is disposed on the second edge of the handle and forms a point where a force acts to move the first edge toward the paper accommodating unit.03-11-2010
20110018190MEDIA TRANSPORT SYSTEM WITH SHAFT-MOUNTED NIP LEAD-IN ELEMENTS - A media transport system comprising a roller system, a baffle, and at least one lead-in guide positioned to guide a sheet towards the roller system. The roller system includes a drive roller and an idler roller forming a nip, each roller being mounted on a corresponding drive shaft and an idler shaft, respectively. The lead-in guide, lying at an angle to the baffle, is coupled to at least one of the drive shaft or an idler shaft. The mounting of the lead-in guide eliminates tolerances between the lead-in guide and the nip due to baffle flatness, or baffle and shaft deflections as the lead-in guide is positioned by the drive shaft that locates the nip roller. This arrangement enables the lead-in guide to direct a leading edge of the sheet substantially close to a tangent plane of the nip and minimizes drive forces in the system.01-27-2011
20100244366METHOD OF CONTROLLING THE FORCE OF A SOLENOID, A CONTROLLABLE FORCE TRANSDUCER AND THE USE THEREOF - A method of controlling a solenoid for controlling the force thereof, and a controllable force transducer includes that only a small part of the maximal stroke length of the solenoid is utilized, whereby the exerted force thereof is substantially constant within said stroke-length distance, when the solenoid is fed with a constant driving power. At a constant driving voltage, the feed current can be controlled for a proportional alteration of the exerted force of the solenoid within said stroke-length distance. The controller finds favourable use in a sheet separator.09-30-2010
20080309000DOCUMENT-FEDDING DEVICE WITH IMPROVED SHEET-SEPARATING STRUCTURE - The present invention relates to a document-feeding device. The document-feeding device includes a sheet-feeding channel and a sheet-separating structure. The sheet-separating structure includes a base, a separation pad, a pinch roller, a separation roller and an elastic element. The base is disposed in the sheet-feeding channel. The separation pad is disposed on a surface of the base. The pinch roller is disposed in the base. The separation roller is in contact with the separation pad and the pinch roller. The elastic element is used for supporting the base such that the separation pad and the pinch roller are sustained against the separation roller12-18-2008
20090079125Sheet supply device and image forming apparatus - A sheet supply device includes a first separation unit for applying a transportation load to a medium supplied from a stored state with a sheet supply member to separate the medium, and a second separation unit disposed on a downstream side of the first separation unit for separating the medium passing through the first separation unit. The first separation unit is disposed outside an extension area of the second separation unit in a medium transportation direction.03-26-2009
20110187046NIP RELEASE SYSTEM - Methods and system for reducing sheet skew in a sheet transport system are disclosed. A sheet transport system may include an idler wheel, a drive wheel a drive motor and an actuator. The idler wheel may have a substantially rigid outer layer. The drive wheel may have a compliant outer layer and may correspond to the idler wheel. The drive motor may be operably connected to the drive wheel and may be configured to cause the drive wheel to rotate around a shaft. The actuator may be operably connected to the drive wheel and configured to cause the drive wheel to move between a closed position and an open position. The drive wheel is configured to contact a sheet in the closed position and to not contact a sheet in the open position.08-04-2011
20110187045SHEET FEEDING APPARATUS AND PRINTING APPARATUS - A sheet feeding apparatus includes: a sheet storage unit into which a sheet is inserted in a generally vertical direction through a sheet inlet, the sheet storage unit having a first opening portion formed on a front of the sheet storage unit, a second opening portion formed on a rear thereof, and a third opening portion formed on a top thereof; a pressure plate having a bottom portion on which the sheet inserted into the sheet storage unit is placed, and a rear portion formed on rear of the bottom portion, the pressure plate being disposed in a manner slidable in front and rear directions; a moving device configured to slide the pressure plate in the front direction so that the rear portion presses the sheet through the second opening portion; and a roller rotatably disposed so as to contact with the sheet through the first opening portion, the roller moving the sheet in a vertical direction in response to rotation of the roller, to output the sheet through the third opening portion.08-04-2011
20080251991SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS WITH THE SHEET CONVEYING APPARATUS - A sheet conveying apparatus includes: a sheet conveyance path designed so as to include nonlinear portions; a first conveyance roller pair which is provided at predetermined positions of the sheet conveyance path and which has a conveyance width capable of nipping and conveying a sheet having the minimum size sheet passing width among sheets to be passed through the sheet conveying apparatus; a guide plate which is placed in a downstream side or an upstream side of the first conveyance roller pair in a sheet conveyance direction and has a curved guide surface; and a plurality of guide ribs which are extended on the guide surface in the sheet conveyance direction and are provided in a sheet passing width direction of the sheet in a region corresponding to the conveyance width of the first conveyance roller pair.10-16-2008
20080203651Document Feeder Device - A document feeder device is disclosed. The document feeder device includes a frame and at least one cantilevered roller shaft for advancing a document, where an unsupported end of the at least one cantilevered roller shaft floats. The document feeder device eliminates the need for a rigid frame to support the unsupported end. This decreases the cost of production by eliminating the need for additional frame hardware and/or more rigid frame hardware. The document feeder device can be implemented in existing designs.08-28-2008
20080203650Sheet Supplying Devices And Image Recording Apparatuses Including The Same - The invention describes an image recording device having a sheet supplying device that supplies sheets. The sheet supplying device has a first tray and a second tray that hold sheets, and a first and second shaft positioned over the first and second trays. A first rotating member contacts a sheet in the first tray, and a second rotating member contacts a sheet in the second tray. A first arm extends from the first shaft to the first rotating member, and a second arm extends from the second shaft to the second rotating member. A transmission device is coupled to the first arm member and the second arm member, and transmits selectively a rotational drive force from the first shaft to either the first or second rotating members. A recording unit records an image on the sheet supplied by the sheet supplying device.08-28-2008
20100320675AUTOMATIC PAPER SUPPLY APPARATUS FOR PAPER SHREDDER - Disclosed is an automatic paper supply apparatus for a paper shredder, which can shred stapled paper sheets regardless of the volume or thickness of the paper sheets to be shredded. The automatic paper supply apparatus includes a paper loading stand for loading paper sheets to be shredded, the paper sheets being loaded while facing the shredding part; a supporting jaw installed at a front end of the paper loading stand so as to keep and support the paper sheets to be shredded; a lifting board included in the paper loading stand in such a manner that the lifting board can be rotated toward an upper direction; a feed sensor which is positioned at a lower part of the lifting board so as to sense if paper sheets to be shredded are supplied; a feed roller positioned at an upper part of the lifting board, the feed roller being driven when the feed sensor senses paper sheets so as to carry the paper sheets to be shredded to the shredding part; a pressing spring which elastically supports the lifting board and allows the paper sheets to be shredded, which has been put on the paper loading stand, to face the feed roller of an upper part of the paper shredder; and a catching board which is positioned above an upper part of the paper loading stand while being spaced from the paper loading stand, and allows a sheet of paper at an upper layer of stapled paper sheets to be released from the stapled part of the paper sheets. The present invention can shred stapled paper sheets without need to previously remove the staple thereof, increases the user's safety, and prevents damage to the apparatus.12-23-2010
20110254218SHEET CONVEYANCE APPARATUS AND IMAGE FORMING APPARATUS - A sheet conveyance apparatus includes a conveyance unit configured to convey a sheet and a pair of roller units, provided on a downstream of the conveyance unit in the conveyance direction, wherein the pair of roller units forms a plurality of nipping portions, arranged along a width direction orthogonal to the conveyance direction, a downstream end of the sheet to be conveyed is caused to abut against abutting positions of the plurality of nipping portion, and wherein the abutting position of the nipping portion nearer to a center in the width direction is positioned on a more downstream in the conveyance direction than the abutting position of the nipping portion at end side in the width direction.10-20-2011
20100213665TORQUE LIMITING ROLLER AND MEDIUM SEPARATING MECHANISM USING THE SAME - A torque limiting roller includes a shaft, a frictional unit, a roller assembly, a fixing unit and an elastic unit. The shaft includes a first end and a second end. The frictional unit is mounted on the first end of the shaft. The roller assembly is rotatably mounted on the shaft and includes a first end and a second end. The first end of the roller assembly is in frictional contact with the frictional unit. The fixing unit is mounted on the second end of the shaft. The elastic unit is mounted on the shaft, disposed between the fixing unit and the roller assembly, and contacts with the second end of the roller assembly and the fixing unit to provide a normal force between the roller assembly and the frictional unit and thus to provide limiting torque. A medium separating mechanism using the torque limiting roller is also disclosed.08-26-2010
20110148028FEED ASSEMBLY AND IMAGE FORMING APPARATUS INCORPORATING FEED ASSEMBLY - A feed assembly including: feed roller; support element for supporting feed roller; separating mechanism for facilitating separation of first and second sheets; and base with guide surface for guiding sheets and positioning wall for positioning separating mechanism; wherein engaging portion for engaging with separating mechanism is formed in positioning wall; separating mechanism includes: separator for separating sheets; first biasing element including first and second ends; seat including first and second walls; positioning element installed on first wall to be moved between first and second positions; and shifter for shifting positioning element; first biasing element biases separator; shifter holds positioning element in first position; and when feed roller is removed from support element, shifter moves positioning element to second position.06-23-2011
20110304093Apparatus for Detecting Media Edges in a Media Input Tray - A media picking device for an image forming apparatus having a sensing mechanism for detecting the leading and trailing edge of a sheet of media being picked while in a media input tray. The device comprises an arm rotatably positioned to engage a stack of media sheets in a media input tray, a pick shaft rotatably connected to one end of the arm; a pick tire disposed on the pick shaft for contacting and picking the top-most media sheet; and a sensing mechanism comprising a sensor and a flag positioned adjacent the pick tire and moveable between at least two positions, the flag having a first end for contacting the surface of a media sheet being picked; the flag moving from a first position to a second position when the leading edge of the media sheet being picked passes by and moving from the second position to the first position when the trailing edge of the media sheet being picked passes by, wherein the sensor senses the movement of the flag when the flag moves between the first and second positions with the sensing mechanism providing an output signal corresponding to the movement of the flag. The sensor is one of a photointerrupter, a proximity sensor, a potentiometer, and a switch.12-15-2011
20120056368DOCUMENT FEEDING MECHANISM - A document feeding mechanism includes a frame, a document picking means positioned in the frame for picking up and conveying a document, a stopper means positioned in the frame for blocking the conveyance of the document, a supporting portion cooperating with the stopper means for supporting the document picking up means while the document picking up means is raised at a predetermined level, and a blocking portion restricting a rotatable angle of the stopper means for blocking the conveyance of the document while the document picking up means is raised at the predetermined level. The document feeding means is kept at the predetermined level via the cooperation of the supporting portion and the stopper means for supporting the document feeding means. Since, the document feeding mechanism has high reliability to resist shake and crash for preventing the document picking up means from being drooped.03-08-2012
20120007305PAPER SHEET SEPARATION/CONVEYANCE ROLLER - A paper-sheet-separating/conveying roller 01-12-2012
20120025449SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - The present invention provides a sheet feeding apparatus and an image forming apparatus which can suppress generation of sheet skew feeding by a simple configuration and a pair of side edge regulating portions 02-02-2012
20120061906IMAGE PROCESSING DEVICES AND SHEET FEEDING DEVICES - An image processing device includes first and second feeding units. The first feeding unit feeds a sheet toward the second feeding unit in a sheet feeding direction via a sheet feeding path. The device further includes an image processing portion. The first feeding unit is in the path upstream of the processing portion and includes a first shaft rotating in the feeding direction. The second feeding unit is in the path downstream of the processing portion, and the first and the second units feed and hold the sheet. The second feeding unit includes a second shaft rotating in the feeding direction. The device includes a first supporting member supporting first and second ends of the first shaft, a second supporting member supporting first and second ends of the second shaft, and a third supporting member supporting one shaft at a predetermined portion which is not either end of either shaft.03-15-2012
20100096797Transmission mechanism and automatic sheet feeder using the same - A sheet feeder has a transmission mechanism which includes an output gear mesh with a transmission gear train, and a switch element, disposed between the transmission gear train and the output gear, for switching a rotational direction of the output gear. The switch element includes a movable arm, a driving gear driven by the transmission gear train, a switching gear set attached to the arm and meshing with the driving gear, and a clutch device for restricting movement of the arm to enable the switching gear set to be disengaged from the output gear. When the output gear meshes with the switching gear set, the output gear and a transmission shaft of the sheet feeding mechanism may change the direction of their rotation. When the output gear is disengaged from the switching gear set, the output gear and the transmission shaft of the sheet feeding mechanism are not driven by a power source.04-22-2010
20090134566Photosensitive Material Conveying System and Image Forming Apparatus - The photosensitive material conveying system is configured so that a feed out roller is contacted on a stack of sheets having a plurality of stacked photosensitive sheet films each of which is provided with an emulsion layer and a first protective layer provided on one side of a supporting base and a second protective layer provided on the other side with matting agent dispersed in the second protective layer, and the topmost sheet film in the stack of sheets is fed out by the rotation of the feeding out roller, wherein the matting agent has a spherical shape, a hardness softer than the first protective layer, and particle diameter in the range of 8 to 12 μm, and the contact pressure of the feeding out roller is 0.49 N/cm or less.05-28-2009
20110089627GATE SYSTEM DIVERTING SHEETS INTO MULTI-WAYS - According to aspects illustrated herein, there are provided systems for conveying a sheet article into an intended pathway. The multi-way gate system for diverting sheets into multiple pathways in a sheet conveying device includes at least three pathways for directing the sheet from the sheet conveying member in a particular direction. A single gate plate is between the sheet conveying member and the pathways. The single gate plate is rotatable about a single axis to direct the sheet exiting the sheet conveying member toward one of the pathways.04-21-2011
20120211936METHOD AND APPARATUS FOR DIVERTING SIGNATURES IN A FOLDER - An apparatus for transporting signatures is provided which includes a moving transport surface for transporting signatures; a pair of eccentric guide rollers, rotatable about respective axes, the pair of guide rollers positioned opposite one another to receive signatures therebetween from the moving transport surface; and a diverter positioned downstream of the guide rollers. The diverter is movable between a first position to divert signatures received from the guide rollers to a first downstream moving transport surface and a second position to divert signatures received from the guide rollers to a second downstream moving transport surface.08-23-2012
20120248681SHEET CONVEYING DEVICE - A sheet conveying device includes a cover member made of resin and partially defining a conveying path, a roller member rotatably disposed on the cover member and configured to convey a sheet along the conveying path, an urging member disposed between the cover member and a rotary shaft of the roller member and urging the roller member toward the conveying path while one end of the urging member contacts the rotary shaft, and a plate member made of metal and disposed between the cover member and the urging member. The plate member includes a first segment extending along the cover member and contacting the other end of the urging member, a second segment extending from an edge of the first segment in a direction toward the conveying path, and a third segment extending from an edge of the second segment in a direction different from the second segment extending direction.10-04-2012
20100207316Dispensing Value Sheet Store - A store for storing value sheets such as banknotes in a stack and for dispensing the value notes from the stack. When more than a single value sheet is dispensed from the stack, the store returns all but one of the value sheets to the stack while moving the stack to reduce friction between the returning value sheet and the topmost value sheet of the stack. Means for securing the stack are also provided: a support for the stack is anchored and/or extra pressure is applied to the stack. The store includes means for indicating when the stack contains more than a predetermined number of value sheets and means for preventing securing of the store when the predetermined number of value sheets is exceeded. A value sheet store with part of a sidewall integrally formed with the lid. A value sheet store which includes a lid attached to a housing by a hinge located on an edge of the housing. Apparatus and a method for determining the height of a stack of value sheets. A shutter arrangement in a value sheet store which acts to block an aperture through which value sheets are dispensed.08-19-2010
20090001655PAPER FEED APPARATUS FOR DUPLEX PRINTING APPARATUS - A paper feed apparatus includes a gate, an actuator, a transmission, a pickup device, a reversing device, a paper feed device. The gate has a rack defined at one end of the gate and a resilient arm connecting to the outer portion of the rack. The resilient arm has a plurality of external teeth. The actuator has a pickup gear with a disc-shaped body, an external wheel connecting to the outside of the body and an external gear connecting to the outside of the external wheel. A receiving passage is defined through the pickup gear along the axis thereof. The receiving passage includes a holding hole at one side of the receiving passage that is near to the rack. The resilient arm is inserted into the receiving passage with the external teeth abutting against the inner surface of the holding hole.01-01-2009
20100270732PAPER FEEDING DEVICE - A paper feeding device includes a supporting base and a paper arranging module. The supporting base has a supporting surface, an inclined supporting plane and a slot at the supporting surface. The paper arranging module includes a pivot structure fixed under the supporting surface, a paper-pushing structure pivoted to the pivot structure, an elastic element connected between the paper-pushing structure and a fixed end, and a cam disposed on the pivot structure. When a first supporting part of the cam corresponds to the paper-pushing structure causing the paper-pushing structure to be driven by the elastic element, the paper-pushing structure moves toward the inclined supporting plane along the slot to arrange the paper on the supporting base, thereby facilitating subsequent paper dividing. When a second supporting part of the cam corresponds to the paper-pushing structure, the paper-pushing structure is returned to an original position by a driving force of the cam.10-28-2010
20090020943CARD COLLECTION MECHANISM AND CARD ISSUING DEVICE - A card collection mechanism may include a card collection box for collecting a card, a feeding roller for carrying the card from a feeding passage to the card collection box, and a guide part for guiding the card to the card collection box. The guide part guides the card while the guide part causes the card to be resiliently bent in a direction where an urging force directed to a surface of the feeding roller is applied to the card when the card is fed to the card collection box, and the feeding roller carries the card to a state in which the card is capable of being collected in the card collection box. The card collection mechanism may be used in a card issuing device having a card issuing part.01-22-2009
20120228818SHEET FEEDER AND IMAGE FORMING APPARATUS USING THE SAME - A sheet feeder including a sheet container on which sheets are placed, a transfer roller to transfer the sheets to an image forming unit via a transfer path; a friction pad to transfer the sheets together with the transfer roller; and a movable portion provided on the transfer path to alter a direction of the transfer path based on the sheets.09-13-2012
20100327513SHEET TRANSPORT SYSTEM WITH MODULAR NIP RELEASE SYSTEM - A sheet transport system and method including a first drive module including a frame. A first drive wheel is rotatably disposed on the frame. A first drive motor is operably connected to the first drive wheel and disposed on the frame. The first drive module is pivotally secured to a structure. A first idler wheel corresponds to the first drive wheel. An actuator is operably engagable with the first drive module. The actuator is configured to move the first drive module to cause the first drive wheel to move between an open position and a closed position. The first drive wheel is configured to propel a sheet in the closed position and to not propel a sheet in the open position.12-30-2010
20120280446PAPER TRANSMITTING APPARATUS FOR PRINTER - A paper transmitting apparatus for a printer, comprises a bracket comprising a paper tray mounted thereon, the paper tray is adapted to receive a piece of paper in the paper tray; and a driving mechanism comprising a roller rotatablely mounted on the driving mechanism, a sleeve fitted around the roller, a plurality of grains located on an outer surface of the sleeve to increase a surface roughness of the outer surface of the sleeve, the outer surface of the sleeve rests on the piece of paper, and the driving mechanism is adapted to rotate the roller to move the piece of paper on the paper tray.11-08-2012
20080237970Sheet loading device, sheet conveying device, and image forming apparatus - A sheet cassette loads and houses therein a plurality of sheets. A separating unit separates the sheets loaded in the sheet cassette one by one. The separating unit is arranged in the sheet cassette in opposite to a feeding roller that conveys the sheets from the sheet cassette. A rib is formed on a rear surface of a bottom plate of the sheet cassette. The rib is pressed by a pressing member.10-02-2008
20120248680REVERSING TRANSPORTING DEVICE, IMAGE FORMING APPARATUS, AND TRANSPORTING DEVICE - A reversing transporting device includes a transport-in path, a first transporting section provided at the transport-in path, a second transporting section provided at the transport-in path, a reversing path connected to the transport-in path, a third transporting section provided at the reversing path, a transport-out path connected to the reversing path, a fourth transporting section provided at the transport-out path, and a fifth transporting section provided at the transport-out path.10-04-2012
20130134653Sheet Feeding Device and Separation Unit - A separation unit includes a separation pad configured to separate sheets one by one by making the sheets contact with a nip portion of the separation pad, a holder configured to hold the separation pad, and a supporting member configured to keep a base end of the separation pad to the holder. The separation pad includes a supported portion receded in the base end of the separation pad. The supporting member includes an attaching portion configured to attach the supporting member to the holder and a holding portion configured to fit in the supported portion to hold the supported portion in cooperation with the holder.05-30-2013
20130134652MULTI-FUNCTION PERIPHERAL - A multi-function peripheral (MFP) suited for printing/scanning a paper or a business card is provided. The MFP includes a body and a printing/scanning unit, a feeding roller, and a plurality of idle rollers disposed in the body. The body has a feeding path that the printing/scanning unit, the feeding roller, and the idle rollers are located thereon. The printing/scanning unit used for printing/scanning the paper or the business card on the feeding path. The idle rollers lean against the feeding roller respectively. A path length between two leaning points of any two adjacent idle rollers contacting the feeding roller is shorter than a size of the business card.05-30-2013
20110215517SHEET GUIDE DEVICE AND SHEET GUIDING METHOD - A sheet guide device according to an embodiment includes: a sheet carrying unit which carries a sheet from a paper discharge port of an image forming apparatus to a paper supply port of a finishing apparatus; and a pair of guide plates having one end attached to an inner side of the paper discharge port so as to be narrowed in a tapered form from the paper discharge port toward the paper supply port and having the other end attached to an inner side of the paper supply port. The pair of guide plates has one of the one end and the other end as a fulcrum and has the other as a turning end. When the paper discharge port and the paper supply port are shifted from each other in height position, the turning end turns according to the quantity of shift in the height position.09-08-2011
20080237969Smart Pick Control Algorithm For An Image Forming Device - A method and device disclosed herein controls the movement of media sheets within an image forming device using a pick mechanism that contacts and moves a media sheet from an input area into a media path. One embodiment controls the rotational speed of the pick mechanism based on a filtered combination of a pick mechanism signal and an encoder signal. An encoder roller positioned to contact the media sheets in the input area senses the movement of the media sheet to generate the encoder signal.10-02-2008
20100314826PAPER OUTPUT MECHANISM FOR PAPER FEEDING APPARATUS - A paper output mechanism for an automatic document feeder, including: a seat; a connecting shaft, passed through the seat; and a paper feeding roller, placed around the connecting shaft, and including: a shaft portion; a roller portion, placed around the shaft portion; and adapted to convey a document, and an elastic element, placed around the shaft portion, and one end thereof being connected to the seat.12-16-2010
20130154181Document Guide Systems And Methods Employing A Document Platen - Document guide systems and methods employing a document platen are provided. According to an illustrative embodiment, a document guide system employing a document platen includes a document platen having a first, document-faceable side and a second, opposing side, and a document support sub-system adjacent the first side of the document platen. The document support sub-system and the first side of the document platen are adapted to receive a document therebetween, and the document platen forms an aperture adapted to allow electromagnetic radiation therethrough.06-20-2013
20110309569AUTOMATIC DOCUMENT FEEDER - An automatic document feeder includes an upper cover, a sheet separation member and a crank. The sheet separation member includes a separation roller, a separation pad and a first elastic element. When the upper cover is opened, the upper cover is separated from the crank, and a first extension part of the crank is uplifted to push a second extension part of the separation pad, so that the separation pad is separated from the separation roller.12-22-2011
20120018945SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS - An image forming apparatus including a sheet conveying portion which conveys a sheet to be formed with an image, and an abutment member which is abutted by the tip end of a sheet conveyed by the sheet conveying portion, and movable to a first attitude of being abutted by the tip end of the sheet being conveyed, and to a second attitude of allowing passage of the sheet and being in the state of abutting the surface of the sheet, wherein the abutment member in the second attitude abuts a part which is outside an image forming region and on the sheet surface having the image forming region in a central part in a width direction orthogonal to a sheet conveying direction.01-26-2012
20130193634MULTI-FUNCTION PERIPHERAL - A multi-function peripheral having an automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space.08-01-2013

Patent applications in class Rotary

Patent applications in all subclasses Rotary