Rotary Separator Patents (Class 271/4.08)
  • Publication number: 20150069695
    Abstract: A media transport assembly includes a loadstop drive assembly to gather and compress a media stack in a media tray before a pick and feed cycle, and a pick drive assembly to pick a sheet of media from the media stack and feed the sheet of media to a media path. The loadstop drive assembly is positioned on one side of a gear wall and the pick drive assembly is positioned on an opposite side of the gear wall such that the pick drive assembly is driven by the loadstop drive assembly through the gear wall.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Inventors: Keith Jariabka, Kieran B. Kelly
  • Patent number: 8840103
    Abstract: A sheet conveying device includes: a separation sheet feeding mechanism having a paper feeding belt and a separation roller; and an adjustment mechanism that changes contact state of the paper feeding belt to the separation roller by changing relative position of the paper feeding belt and the separation roller, and changes and adjusts separation performance of the separation roller for the subsequent sheet, wherein the adjustment mechanism includes a cam follower member changing the relative position of the feeding belt and the separation roller, the cam member includes a first cam face and a second cam face which are formed at each rotation radius position in accordance with the rotation angle position, and are spaced apart in the rotation radius direction, and the cam follower member has a contact unit guided by the first cam face and the second cam face.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 23, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Takashi Fukumoto, Mamoru Kambayashi, Michitaka Suzuki, Atsushi Fujita, Masataka Fukuchi, Ryuji Yoshida, Hideki Tobinaga, Norio Kimura, Kenichiro Morita, Koki Sakano, Takuya Sano, Takuya Morinaga, Takashi Nakano
  • Patent number: 8596636
    Abstract: A sheet feeding unit having a holding section; a separation pad that contacts a sheet and imparts a conveyance resistance to the sheet; a separation roller that imparts a conveyance force to the sheet; a drive source that supplies driving force to the separation roller; a conveyance roller disposed at a position downstream of the separation roller, wherein the conveyance roller rotates at a circumferential speed greater than a circumferential speed of the separation roller, to impart conveyance force to the sheet, and wherein the conveyance roller and the separation roller are disposed so as to simultaneously contact the same sheet; and a drive shutoff unit, which shuts off the driving force supplied to the separation roller when the conveyance roller imparts the conveyance force to the sheet so the separation roller rotates in a following manner with the conveyance of the sheet.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: December 3, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ichikawa, Akira Terao
  • Patent number: 8480071
    Abstract: A recording device that includes a feed roller for feeding a first and a second sheets sequentially, a first and a second conveying devices that convey the sheets in synchronization, a recording device that records image on the sheets, and a controller, that, after image recording on the first sheet is complete, stops the first and second conveying devices when a trailing end of the first sheet reaches a particular position between the first and the second conveying devices. The controller further controls the feed roller to feed the second sheet, such that a leading end of the second sheet contacts a nip of the first conveying device. After the leading end of the second sheet contacts the nip, the controller rotates the first conveying device in a reverse direction.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: July 9, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Hirotaka Aoki, Yasuhira Ota, Shingo Ito
  • Patent number: 8459633
    Abstract: Provided is a medium processing apparatus, which comprises a transfer roller unit and a guide roller unit. The transfer roller unit comprises a first rotation shaft and one or more transfer rollers coupled to the first rotation shaft. The guide roller unit receives power from the transfer roller unit, and comprises a second rotation shaft, a one-way clutch connected to the second rotation shaft, and a guide roller connected to the one-way clutch.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: June 11, 2013
    Assignee: LG-CNS Co. Ltd.
    Inventor: Sumin Lee
  • Patent number: 8382092
    Abstract: Embodiments of the invention are directed to a dual hopper assembly for use in a credential processing device, a credential processing device that includes a dual hopper assembly, and methods of feeding substrates in a credential processing. One embodiment of the dual hopper assembly comprises an upper hopper configured to support one or more card substrates, a lower hopper configured to support one or more card substrates and an input feed roller. The input feed roller is positioned between the upper and lower hoppers and is movable between a first position, in which the input feed roller engages a bottom substrate supported in the upper hopper, and a second position, in which the input feed roller is displaced from the bottom substrate.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 26, 2013
    Assignee: HID Global Corporation
    Inventors: James R. Meier, Jeff Stangler, Chad Johnson
  • Patent number: 8123210
    Abstract: A paper feeding apparatus for a printer includes a motor; a first roller assembly includes a first roller having a first end, a second end and an axis; a first gear disposed at the first end of the first roller, wherein the first gear is configured to be driven by the motor; and a second gear disposed at the second end of the first roller, wherein the second gear having a first bevel gear; a drive shaft including a first end, a second end and an axis, wherein the first end of the drive shaft having a second bevel gear that is configured to engage with the first bevel gear of the second gear of the first roller assembly, and wherein the second end of the drive shaft having a third bevel gear; and a second roller assembly having a second roller and a fourth bevel gear that is configured to engage with the third bevel gear at the second end of the drive shaft.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: February 28, 2012
    Assignee: Eastman Kodak Company
    Inventor: Richard A. Murray
  • Patent number: 8104765
    Abstract: In a document feeder, a length of a discharge path from a reading position to a discharge position is longer than a length of a supply path from a feeding position to the reading position. An idling discharge position is disposed, where the distance with the discharge position through the discharge path is shorter than a distance between the feeding position and the reading speed switching position. A control device controls driving of registration rollers, conveyor rollers and discharge rollers simultaneously when a trailing edge of an original reaches the discharge idling position of the discharge path by the discharge rollers while the discharge rollers is stopped. The document feeder efficiently supplies originals sequentially to the reading position, stably reads the image of the original without discharging a previous original during a reading, and aligns and stores the originals in a discharge stacker.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: January 31, 2012
    Assignee: NISCA Corporation
    Inventors: Atsushi Tsuchiya, Yoshihiko Minagawa
  • Patent number: 8038140
    Abstract: A document feeding device includes a carrying unit capable of carrying documents, a drawing device drawing and supplying the documents, a drawing device drive source driving the drawing device, a separation unit including a separation device to separate the documents one by one, a separation device drive source driving the separation device, a conveying device conveying the documents, a reading unit including a reading device to read information of the documents, a discharge device discharging the documents, a first document detector provided between a document set position and the separation unit to detect the documents, and a second document detector provided downstream of the separation unit and near a separation position to detect the documents. The first and second document detectors detect the trailing end of each of the documents to control the operation of the drawing device on the basis of the result of the detection.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: October 18, 2011
    Assignee: Ricoh Company, Limited
    Inventors: Norio Kimura, Hideki Tobinaga, Akira Hirose, Shinya Kitaoka, Motoya Sano, Atsushi Kanaya, Michitaka Suzuki
  • Publication number: 20110175277
    Abstract: Provided is an automatic document conveying device, including: a document feeding portion that feeds a document from a document stacking tray; a conveying portion that conveys the document which is fed, to a document reading portion; a discharge portion that discharges the document after being read to a discharge tray; a branching guide that switches a conveying path so that a second surface is read after a first surface of the document is read; and a switchback portion including a switchback roller pair for sending the document to the conveying portion again after the conveying path is switched by the branching guide, in which a switch of the conveying path by the branching guide and open/close of a nip of the switchback roller pair are performed in one drive portion.
    Type: Application
    Filed: December 21, 2010
    Publication date: July 21, 2011
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Katsuhiko HANAMOTO
  • Publication number: 20110156338
    Abstract: An image recording apparatus includes a recording unit configured to record an image on a sheet, a tray on which the sheet is placed, a first roller configured to feed the sheet placed on the tray, a first guide member configured to guide the sheet fed from the first roller to the recording unit, a second guide member configured to guide the sheet passed through the recording unit, a second roller configured to feed the sheet guided by the second guide member, a third guide member configured to guide the sheet fed from the second roller to the recording unit, a common roller configured to transmit a rotation force to the first roller and the second roller, and a second-roller arm including the second roller at a distal end thereof and configured to be pivotable about an axis.
    Type: Application
    Filed: September 28, 2010
    Publication date: June 30, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Patent number: 7821686
    Abstract: A paper feeder employs a retard roll mounted on a shaft that is controlled by a magneto rheological variable clutch. Current is adjusted to the magneto rheological variable clutch to produce a variable drag torque (from near zero to fully locked) on the retard roll. The current is adjusted based on various inputs, some of which include media type, temperature, humidity, media size, and transport speed. Variable drag on the retard roll results in a reduction in induced skew of sheet passing through a nip formed between the retard roll and a separation roll, as well as, less and more consistent wear of the retard roll.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: October 26, 2010
    Assignee: Xerox Corporation
    Inventors: Nidhi Sharma, Petrus T. De Koning, Guillermo Aristizabal, Raymond M. Ruthenberg, Gary A. Faguy
  • Publication number: 20100245449
    Abstract: An image recording apparatus includes a conveyance roller which conveys the recording medium, a drive source for rotating the conveyance roller, a print head and a carriage mounted with the print head. The carriage includes an abutment portion. The image recording apparatus further includes a carriage position detector which detects a position of the carriage in a movement direction of the carriage and still further includes a rotating body which rotates in synchronization with the conveyance roller. The rotating body includes a reference portion which protrudes or depresses in the movement direction at a predetermined rotation phase of the rotating body and abut with the reference portion. Moreover, the image recording apparatus includes an origin determination section which, based on a result of the detection by the carriage position detector, determines an origin position of a rotation phase of the conveyance roller.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 30, 2010
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuji Koga, Naohisa Kinoshita, Shingo Ito
  • Publication number: 20100244357
    Abstract: A sheet output device includes a sheet receiver and a group of rollers. The group of rollers includes a plurality of output rollers arranged in the widthwise direction of the sheet and a plurality of pinch rollers arranged upward of the plurality of output rollers. The plurality of pinch rollers pinch the sheet with the plurality of output rollers and transport the sheet onto the sheet receiver. The sheet output device further includes at least one corrugation roller which is disposed between corresponding two of the plurality of output rollers and which has a diameter larger than the plurality of output rollers. The plurality of output rollers are rotatable relatively with respect to the at least one corrugation roller. The at least one corrugation roller rotates by being pushed by a leading end of the transported sheet.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 30, 2010
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Muneaki TAKAHATA
  • Publication number: 20100225045
    Abstract: A document feeding device includes a carrying unit capable of carrying documents, a drawing device drawing and supplying the documents, a drawing device drive source driving the drawing device, a separation unit including a separation device to separate the documents one by one, a separation device drive source driving the separation device, a conveying device conveying the documents, a reading unit including a reading device to read information of the documents, a discharge device discharging the documents, a first document detector provided between a document set position and the separation unit to detect the documents, and a second document detector provided downstream of the separation unit and near a separation position to detect the documents. The first and second document detectors detect the trailing end of each of the documents to control the operation of the drawing device on the basis of the result of the detection.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 9, 2010
    Inventors: Norio Kimura, Hideki Tobinaga, Akira Hirose, Shinya Kitaoka, Motoya Sano, Atsushi Kanaya, Michitaka Suzuki
  • Publication number: 20100194022
    Abstract: A sheet finishing apparatus includes: a conveying roller configured to convey a sheet to a storage tray; a positioning stopper provided in parallel to a conveying path for the sheet; an aligning roller configured to convey the sheet, move the sheet in a lateral direction orthogonal to a direction of the conveyance, and press the sheet against the stopper to laterally align the sheet; and a moving mechanism configured to move the position of the aligning roller in the conveying direction. The sheet finishing apparatus controls the position of the aligning roller according to a size of the sheet.
    Type: Application
    Filed: January 27, 2010
    Publication date: August 5, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Takahiro KAWAGUCHI
  • Publication number: 20100164163
    Abstract: It is presented a note transport unit for feeding notes one after the other to and from a note handling unit. The note transport unit comprises at least one note storage drum to and from which input notes and output notes, respectively, are transported. A bidirectional roller is arranged to transport notes along a first guide surface towards and from the at least one note storage drum. Moreover, first and second films are provided, between which films notes are stored on the at least one note storage drum. Several converging areas are used for the capturing of both input notes and output notes when notes are transferred between the note handling unit and the at least one note storage drum. It is also presented a method for bidirectional transfer of notes to and from the note transport unit.
    Type: Application
    Filed: January 28, 2010
    Publication date: July 1, 2010
    Inventors: Per Christian Aas, John-Haakon Lippert, Anders Ekberg
  • Publication number: 20100150636
    Abstract: The invention provides a sheet collecting apparatus for enabling sheets to be loaded and stored in a neatly aligned state with respect to a regulation stopper disposed in a tray when loading and storing the sheets on the tray, where the apparatus has a tray means for bearing and storing sheets from a sheet discharge outlet, a regulation stopper for regulating a sheet by the sheet carried in the tray means striking the stopper, a forward/backward rotation roller for feeding the sheet carried onto the tray means from the sheet discharge outlet against the regulation stopper to align, a roller lifting/lowering means for supporting the forward/backward rotation roller to be able to move up and down between an operating position in which the roller comes into contact with an uppermost sheet and a standby position in which the roller is withdrawn above the sheet with respect to the tray means, a sheet pressing guide disposed between the forward/backward rotation roller and the regulation stopper to press the upperm
    Type: Application
    Filed: November 30, 2009
    Publication date: June 17, 2010
    Applicant: NISCA CORPORATION
    Inventors: Ichitaro Kubota, Kazuhiko Watanabe
  • Publication number: 20100109228
    Abstract: A device for feeding paper sheets or the like has a feed path whereby paper sheets are fed, a distribution unit for distributing the paper sheets that are fed thereto, and a stacking unit that holds the paper sheets that are distributed, wherein the stacking unit comprises: a rotary feed unit having a rotary shaft; gripping claws that extend in a spiral fashion with respect to this rotary shaft and grip and feed one edge of a paper sheet therebetween; an extraction unit that extracts the paper sheets fed by the rotary feed path from the gripping claws; a stage that conforms with the rotary feed unit and that holds between itself and the rotary feed unit one edge of a paper sheet that has been extracted from the gripping claws; and a stopping element that abuts one edge of a paper sheet that is held on the stage.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 6, 2010
    Inventors: Tadashi OBARA, Makiko Obara
  • Publication number: 20100104338
    Abstract: A medium containing cassette includes: a container case for containing media; a stack plate movable in the container case and configured to stack the media thereon; a separator provided on the container case and configured to separate the media one by one; and a bias member configured to bias the stack plate toward the media stacked on the stack plate. The bias member is disposed to have a greater distance from the stack plate than the separator, in a direction from the stack plate to the separator, on a plane substantially perpendicular to a bias direction of the bias member.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 29, 2010
    Applicant: OKI DATA CORPORATION
    Inventor: Hiroshi UDAGAWA
  • Publication number: 20100052240
    Abstract: A pair of conveyor rollers arranged in an image forming apparatus to convey a recording sheet which has been subjected to a fixing process toward outside of a body of the apparatus is configured to be shiftable relative to the body between a first position and a second position. A first holding member is configured to support one of the conveyor rollers in such a manner that a conveyor roller supported by the first holding member is swingable around a pivot located adjacent to a sheet conveyance path upstream of the supported conveyor roller to allow the pair of conveyor rollers to be shifted between the first position and the second position. The first holding member comprises a sheet guide portion which provides a variable-position guideway extending from a position located upstream along the sheet conveyance path toward a peripheral surface of the supported conveyor roller.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kei ISHIDA
  • Publication number: 20090152791
    Abstract: A first guide member includes a concave-shaped guide surface. A recording medium such as a sheet fed by register rollers takes a curved position while being fed in a sheet feeding direction such that the leading edge of the sheet slides on the guide surface. A space is defined between the sheet and the guide surface due to the stiffness of the sheet. Thus, the sheet smoothly curves. When a speed of conveying the sheet by the register rollers is faster than a speed of conveying the sheet by a conveying belt, slack in the sheet is allowed in the space defined between the sheet and the guide surface. Therefore, the sheet can be stably conveyed without applying excessive load to the sheet or a sheet conveying device.
    Type: Application
    Filed: February 12, 2009
    Publication date: June 18, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroshi Igarashi
  • Patent number: 7516958
    Abstract: An auto document feeder includes a housing unit, spatially interconnected first and second paths, an inverting path in spatial communication with the first path, a bypass path spatially inter communicating the second path and the inverting path, a feeding roller unit for feeding documents onto the first path, first and second transfer roller units disposed respectively on the first and second paths, an ejecting roller unit aligned with the second path and the inverting path, and two switching gates disposed pivotally on the housing unit for guiding movement of the documents. The bypass path and the switching gates are internal to the ejecting roller unit so as to reduce document transportation travel.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: April 14, 2009
    Assignee: Asia Optical Co., Inc.
    Inventor: Hao Tu
  • Publication number: 20090001651
    Abstract: A sheet discharging device and image forming apparatus are provided. The sheet discharging device includes a sheet discharging port; a sheet discharging tray which is provided correspondingly to the sheet discharging port, a sheet discharged from the sheet discharging port being stacked on the sheet discharging tray; and a plurality of sheet lifting members provided so as to be moveable between a retraction position and a protrusion position; wherein when a leading end portion of the sheet contacts with the sheet lifting members, the sheet lifting members move from the retraction position to the protrusion position, the sheet lifting members stay at the protrusion position and lift up the sheet while the sheet is discharged from the sheet discharging port to the sheet discharge tray, and the sheet lifting members return to the retraction position when the sheet has been discharged from the sheet discharging port.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 1, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Atsushi MIWA
  • Patent number: 7467790
    Abstract: A paper feed assembly for a printer including a media tray for a stack of sheets of media to be fed, a pick mechanism capable of pivoting including one or more picking devices in contact with said media. The pick mechanism includes a media contact member which is capable of moving the pick mechanism upon contact with advancing media to eliminate contact with the media stack.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: December 23, 2008
    Assignee: Lexmark International, Inc.
    Inventor: Daniel Joseph Westhoff
  • Patent number: 7333220
    Abstract: An image forming device providing a document image reading mode, image recording mode, copying mode, recording sheet feeding mode, and recording sheet discharge mode. When interruption of feeding of a document or a recording sheet is detected by a sensor, the current driving force transmission path is switched and set to another driving force transmission path corresponding to an operation mode different from the current operation mode at which the interruption occurs.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: February 19, 2008
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Akihiro Ikeda, Atsushi Isozaki
  • Patent number: 7306218
    Abstract: A document transport apparatus includes a sheet feeding device for feeding a document from a sheet feeding tray; a transport device for receiving the document from the sheet feeding device and transporting the document to a predetermined position on a platen of an image reading apparatus; a sheet discharging device for discharging the document to a sheet discharging tray; a switch back path for turning the document upside down and reversing a front end and a rear end thereof, and for subsequently guiding the document to the sheet discharging device; and sheet discharging path for turning the document upside down, and subsequently guiding the document to the sheet discharging device. A control device controls such that the document is transported to the switch back path and returned from the switch back path to the platen via the sheet discharging path.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: December 11, 2007
    Assignee: Nisca Corporation
    Inventor: Atsumi Kobayashi
  • Patent number: 6792242
    Abstract: A manual paper feeding apparatus comprises a tray for manual paper feeding, a paper feed roller to feed the paper fed manually from the tray, a separation roller which is pressed to contact the paper feed roller, rotated at the pressed contact position in the direction reverse to the paper feed roller, and separates the sheets of paper one by one, a power transmission device to transmit power to the paper feed roller and separation roller, and a reversing device which is provided in the power transmission device, and rotates the paper feed roller in the direction reverse to the paper feeding direction, based on that the paper fed between the paper feed roller and separation roller is pulled in the direction reverse to the manual feeding direction.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: September 14, 2004
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventor: Yoshikazu Suzaki
  • Patent number: 6647871
    Abstract: A loader (1) for a printer for printing flat articles (2), this loader (1) which delimits a storage magazine (9) for the articles in the stacked condition being provided internally with a pivoting member (4) arranged to hold the articles (2) in bearing contact with a drive element (5) for discharging the articles (2) to be printed through an opening (7) provided in a wall of the magazine (1). This loader (1) is characterized in that the pivoting member (4) is provided with a counterweight (6) to form an assembly exerting a substantially constant bearing force on the article or articles (2) to be printed, this forced being self-positioning in the course of emptying the loader by moving along one of the articles to be printed in a direction generally opposite to the direction of expulsion of the articles from the loader.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: November 18, 2003
    Assignee: ZIH Corp.
    Inventor: Nicolas Morand
  • Patent number: 6644646
    Abstract: An inexpensive paper folding machine includes a paper feeder that reliably propels sheets one at a time in a downstream direction. The feeder includes a paper supply station that biases a stack of sheets against a pickoff wheel. The pickoff wheel propels the topmost sheet to a gate tip. The gate tip is comprised of a singulator that is biased against the pickoff wheel. A clearance is set between a singulator screw and the singulator. The clearance is greater than the sheet thickness, but less than two times the sheet thickness. As a sheet is propelled by the pickoff wheel from the paper supply station, the sheet leading edge enters the nip between the pickoff wheel and the singulator. The singulator pivots to take up part of the clearance. If a second sheet is propelled with the topmost sheet, the second sheet cannot pass between the nip. The paper folding machine further comprises a skew compensator that compensates for sheets that are misoriented relative to the downstream direction.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: November 11, 2003
    Assignee: Bescorp Inc.
    Inventors: Timothy D. Lindsay, Chad Bones
  • Patent number: 6601842
    Abstract: A sheet transfer apparatus for an image reading apparatus includes a sheet supply tray for storing a sheet; a sheet supply device for drawing out the sheet on the sheet supply tray; a transfer device for receiving the sheet from the sheet supply means and placing the sheet at a predetermined position on a platen of an image reading apparatus for reading the image thereon; a discharge device for discharging the sheet on the platen after reading the image thereon; and a discharge tray for receiving the sheet discharged by the discharge device. A switchback device is disposed above the platen for reversing the sheet when necessary, and includes a switchback path for receiving the sheet to reverse the same. The switchback path includes a first opening portion for opening a first area near an inlet side, and a second opening portion for opening a second area away from the inlet side of the switchback path. The switchback path is easily accessible when the sheet is jammed.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: August 5, 2003
    Assignee: Nisca Corporation
    Inventors: Atsumi Kobayashi, Kunihide Suzuki, Yutaka Tanaka, Akiharu Higaki, Akihiko Tsukui, Mizuho Shirakura
  • Patent number: 6601843
    Abstract: A sheet feeding device including a sheet tray accommodating stacked sheets, and a sheet feeding unit feeding the stacked sheets in the sheet tray one by one. The sheet feeding unit includes a feeding roller which rotates in a sheet feeding direction, and a separation roller which presses against the feeding roller when feeding each of the stacked sheets and which rotates, via a torque limiter, in a direction opposite the sheet feeding direction. The separation roller is rotated by rotation of the feeding roller when a single sheet is sandwiched between the feeding and separation rollers. Also included is a conveying member arranged downstream of the feeding roller in the sheet feeding direction, and a driving source which drives each of the feeding roller, the separation roller, and the conveying member via a driving force transmission mechanism so the separation roller and the conveying member are driven in conjunction with each other.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: August 5, 2003
    Assignee: Ricoh Company, Ltd.
    Inventor: Katsuhiko Miki
  • Patent number: 6247693
    Abstract: A bill feed-out device adapted for dispensing bills from a bill storage box includes a bill stacking plate disposed in the bill storage box to support stacked bills on its upper surface, kick rollers provided below the bill stacking plate to be contactable with a bottommost bill of the bills stacked on the bill stacking plate for kicking the bottommost bill laterally, a feed-out roller, having multiple large-diameter portions and multiple small-diameter portions, for feeding further downstream bills kicked out by the kick rollers, separation rollers, each of which have multiple large-diameter portions and multiple small-diameter portions and whose multiple large-diameter portions can mesh into the multiple small-diameter portions of the feed-out roller for separating one by one bills present between itself and the feed-out roller, a stacked bill number detector for detecting the number of bills stacked on the bill stacking plate, a bite amount regulator responsive to the number of stacked bills detected by th
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: June 19, 2001
    Assignee: Laurel Bank Machines Co., Ltd.
    Inventor: Ichiro Kawano
  • Patent number: 6193229
    Abstract: A signature feeder for delivering stacked signatures to a conveyer or gatherer includes a variable speed separator disk for separating signatures from the stacked signatures. The separator disk mechanically couples with a servomotor. The separator disk has a blade with a leading edge and a trailing edge. The servomotor accelerates the separator disk through the stacked signatures to separate signatures from the stacked signatures. After a signature separates from the stacked signatures, the servomotor slows the separator disk.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: February 27, 2001
    Inventors: David F. Hall, Jonh E. Prim
  • Patent number: 6181906
    Abstract: An image forming apparatus has an original conveying apparatus, a scanning device for scanning an original image of the original on the original support glass plate, an image forming portion for forming an image on the basis of the original image read by the scanning device, a recording sheet supply portion for supplying a recording sheet to the image forming portion through a convey path, and a control device for controlling in such a manner that, when the image of each original is formed on N recording sheets, a subsequent original on the original stacking device starts to be supplied during a scanning of the image for a last N-th recording sheet, wherein the N is more than 1.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: January 30, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuya Shiratori