And Means To Move Members Cyclicly Against Sheet Edges (e.g., Jogger) Patents (Class 271/221)
  • Patent number: 10207888
    Abstract: Provided is a sheet stacking apparatus, including: a placement portion on which a sheet is placed; a conveyance portion conveying a sheet placed on the placement portion; a regulation portion regulating a position of a sheet conveyed by the conveyance portion through contact with the sheet; and a pressing portion pressing a sheet regulated in position by the regulation portion, the pressing portion pressing a sheet regulated in position by the regulation portion at a first pressing position and a second pressing position, the second pressing position being spaced apart from the placement portion in a thickness direction of sheets placed on the placement portion by a distance which is longer than a distance between the placement portion and the first pressing position, in which an area of pressing a sheet at the first pressing position is larger than an area of pressing a sheet at the second pressing position.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 19, 2019
    Assignee: Canon Finetech Nisca Inc.
    Inventors: Kazunori Hatakawa, Daiki Komiyama, Satoru Matsuki
  • Patent number: 9376276
    Abstract: A sheet feeding apparatus includes a containing unit, a lifting and lowering unit, a loosening unit, a feed unit, a sheet-surface detection unit, an aligning member, a trailing-edge detection unit, a double-feed detection unit, and a control unit. Sheets, of a sheet bundle contained in the containing unit and lifted and lowered, are loosened by blowing air into the sheet bundle and fed. An end face of the contained sheet bundle is aligned on a trailing-edge side. The trailing-edge detection unit moves with the aligning member and detects a sheet surface of a top of the sheet bundle on the trailing-edge side. Where double feed from the containing unit is detected, a detection operation detects, in consideration of a trailing-edge detection unit result, whether the aligning member is located at a position at which the end face of the sheet bundle on the trailing-edge side is aligned.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: June 28, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Yokoya, Satoru Yamamoto, Toshiyuki Miyake, Katsuya Nakama, Koji Yumoto, Akinobu Nishikata, Kenji Morita, Riki Fukuhara, Akihiro Kawakita
  • Patent number: 9085436
    Abstract: A sheet ejecting device includes: a sheet ejecting unit configured to eject a sheet; a stacking unit on which the sheet that is ejected by the ejecting unit is stacked; an aligning unit configured to align the sheet in a direction orthogonal to the direction in which the sheet is ejected; and a blowing unit configured to be provided to the aligning unit and blow a wind toward the ejected sheet.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: July 21, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Junya Suzuki, Kiichiro Goto, Masahiro Tamura, Shuuya Nagasako, Keisuke Sugiyama, Tomohiro Furuhashi, Kyosuke Nakada, Kazuya Yamamoto, Tomomichi Hoshino, Akira Kunieda, Takahiro Watanabe, Takamasa Matsumoto, Kazunori Konno, Youhei Niitsuma
  • Patent number: 9039007
    Abstract: Sheets conveyed to a loading tray are stacked on the loading tray while they are sequentially aligned with an aligning unit, then, when pressing processing is performed with respect to a bundle of the stacked sheets, a presser is moved downward in a state where ends of the sheet bundle are abutting-held with the aligning unit. The sheet bundle is aligned by performing the pressing with a presser member gradually from a first reference fence side, to gradually discharge air staying in the sheet bundle from a first elastic body fence side.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 26, 2015
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Mamoru Fukuda
  • Patent number: 9004486
    Abstract: Devices and methods to collect and align print media sheets. According to a device herein, a tray has a base and receives print media sheets. Registration guides are connected to the tray. The registration guides define a corner in the tray. A tamper mechanism comprises a rotating helical brush extending perpendicularly from the base adjacent to a side of the tray opposite the corner. The tamper mechanism is positioned to tamp the print media sheets against the registration guides causing a stack of the print media sheets to be squared against the corner.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: April 14, 2015
    Assignee: Xerox Corporation
    Inventors: Timothy P. Foley, Frank B. Tamarez Gomez, Steven M. Russel, Jeffrey N. Swing
  • Patent number: 8998198
    Abstract: A controller temporarily opens a pair of side fence plates under a prescribed condition to move the side fence plates away from both side ends of sheets in a sheet width direction, after each time stacking of sheets at a first or second sheet stacking position is completed, but before a sheet receiving tray is temporarily lifted down to offset an offset guide plate and an end fence plate. Else, the controller sets an amount of lifting up and down of the sheet receiving tray such that the amount at the second sheet stacking position is smaller than that at the first sheet stacking position when offsetting the offset guide plate and the end fence plate after each time the stacking of sheets at the first or second sheet stacking position on the sheet receiving tray is completed.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: April 7, 2015
    Assignee: Riso Kagaku Corporation
    Inventors: Takeshi Yamajo, Hiroshi Sugitani, Masashi Hara, Hitoshi Arai, Kenji Obata
  • Patent number: 8985576
    Abstract: Disclosed are systems and methods that allow for concurrent leading edge registration and side edge registration of print media sheet(s). Specifically, segmented scuffer disk(s) are mounted to an axle above a tray. The disk(s) can each comprise multiple segments and, as the axle rotates, these segments can engage a print media sheet in the tray (e.g., the top print media sheet on a stack in the tray) and can continuously force that print media sheet in a first direction against a leading edge registration guide. The segments can also be independently flexible in a second direction perpendicular to the first direction. This independent flexibility allows tamper(s) to perform a tamping process in the second direction at the same time as the print media sheet is forced in the first direction, thereby avoiding any slippage of the print media sheet away from the leading edge registration guide.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 24, 2015
    Assignee: XEROX Corporation
    Inventors: Jason M. LeFevre, Douglas K. Herrmann, Derek A. Bryl
  • Patent number: 8967616
    Abstract: A sheet ejection device includes a sheet tray on which ejected sheets are stacked, a pair of side fences for restricting positions of the ejected sheets along a lateral direction perpendicular to an ejection direction, and at least one rib is formed vertically on each inner side of the side fences. The ribs are configured to contact with side edges of each of the ejected sheets while the each of the ejected sheets falls down to the sheet tray to align the ejected sheet along the lateral direction. The ejected sheets are aligned adequately by the ribs. According to the sheet ejection device, superior sheet ejection performance can be brought without affected by its environment.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: March 3, 2015
    Assignee: Riso Kagaku Corporation
    Inventors: Hiroshi Sugitani, Tomohiko Shimoda
  • Patent number: 8950745
    Abstract: An image forming apparatus may include an image forming unit, a stacking unit, a control unit, and an alignment unit. The image forming unit forms an image on a recording material having a type. The stacking unit stacks the recording material on which the image formation is formed by the image forming unit. The control unit sets a predetermined number of sheets to a number that corresponds to the type of the recording material. The alignment unit aligns the recording material if the predetermined number of sheets of the recording material is stacked by the stacking unit.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Genki Takahashi
  • Publication number: 20150028539
    Abstract: Sheet alignment module and post-processing device comprising such sheet alignment module for aligning sheets in an operative orientation on a substantially horizontal sheet support member, comprising a support roller, the support roller being rotatably mounted on the sheet alignment module and configured to support the sheet alignment module during a sheet aligning movement, the sheet alignment module further comprising a jogger member comprising a substantially flat surface extending in a substantially vertical direction, the jogger member is moveably mounted on the sheet alignment module such that the jogger member is freely moveable in a substantially vertical direction with respect to the sheet alignment module.
    Type: Application
    Filed: October 10, 2014
    Publication date: January 29, 2015
    Applicant: OCE-TECHNOLOGIES B.V.
    Inventor: Johannes H.A. DINNISSEN
  • Patent number: 8915492
    Abstract: According to one embodiment, a sheet finishing apparatus includes a finishing section configured to apply finishing to a sheet placed on a processing tray, a sheet discharging section configured to discharge the sheet subjected to the finishing to a stack tray via a discharge port, a roller attached to a shaft provided in parallel to the discharge port and which rotate in a first direction for guiding the sheet in the direction of the finishing section and a second direction for discharging the sheet, and an arm attached to the shaft to extend in the centrifuging direction from the shaft, rotate with the torque of the shaft, and idly rotate when force for regulating the torque acts. The arm flaps down the trailing end of the sheet on the stack tray onto the stack tray.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 23, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hideaki Sugiyama, Katsuhiko Tsuchiya
  • Patent number: 8899580
    Abstract: Disclosed in the present invention is a sheet-type medium stacking and guiding device, also disclosed in the present invention are a control system and a method based on the same. The device comprises: a left limiting plate (14) and/or a right limiting plate (19), which locate at the outer end of a medium passage made up of a left and a right passage plate (301, 304); a driving mechanism (25), which is in transmission connection with the limiting plates and drives the limiting plates to move along the longitudinal direction of the medium. The system comprises a central control module (901), a detection module (902), a data processing module (903), an image acquisition module (904), a storage module (905) and an execution module (906).
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: December 2, 2014
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Heng Liu, Dong Tan, En Wu, Fa Ran
  • Patent number: 8882105
    Abstract: Provided is a sheet stacking apparatus including a discharge roller pair, a stacking tray, a tray drive motor, a sheet surface detecting sensor detecting a position of a topmost sheet on the stacking tray, an alignment portion including front and rear alignment members which are provided above the stacking tray and sandwiching a sheet to align, and a finisher control portion executing: raising/lowering control for raising and lowering the stacking tray so that the topmost sheet is located at a predetermined height in accordance with a detection result obtained from the sheet surface detecting sensor; alignment control for aligning the sheet when the sheet is discharged; and alignment stop control for stopping the alignment of the alignment portion in the case that a movement amount of the stacking tray, at the time when the stacking tray moves in accordance with the detection result, exceeds a predetermined movement amount.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: November 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Iwata
  • Patent number: 8876107
    Abstract: A sheet stacking device includes: a stacking unit that stacks thereon a sheet discharged in a sheet discharging direction; a conveying unit that performs a moving-back operation of conveying the stacked sheet in a direction opposite to the sheet discharging direction; a pressing unit that performs a pressing operation of pressing the conveyed sheet; and a driving unit that drives the conveying unit and the pressing unit by a same driving source.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Junya Suzuki, Kiichiro Goto, Takashi Fukumoto, Yasuo Niikura, Shintaro Matsumoto, Satoru Takano, Hidetoshi Kojima, Kei Sasaki, Kazunori Konno, Yuuta Mori, Kohjiroh Haga, Takamasa Matsumoto, Ryo Takahashi, Youhei Niitsuma
  • Patent number: 8820734
    Abstract: A loading device includes a disposing unit to dispose the recording media, and a detector to detect the disposed recording media. The disposing unit includes a loading member on which the recording media are loaded, a pair of guide members movable in width directions of the recording media that are mounted on the loading member, and a guide driver to move the guide members. The end detector detects positions at which the guide members are in contact with the recording media as the ends of the recording media. The guide driver further moves the guide members in the width direction to cause the recording media to form flexures, subsequently moves the guide members to separate from the recording media, and then moves the guide members to be in contact with the recording media again.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: September 2, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Takahiro Miyakawa, Koichi Suse, Shingo Hayashi, Osamu Kizaki
  • Patent number: 8820736
    Abstract: To provide a post-processing apparatus for preventing a sheet from becoming misaligned in dropping the rear end side of the sheet carried in a processing tray from a sheet discharge path to store on the tray, and enabling the mechanism to be simplified, compact and configured at low cost, a sheet guide that guides a sheet from the sheet discharge path to the processing tray is comprised of a pair of right and left guide members, at the same time in the processing tray are disposed a pair of right and left side edge alignment members, and each guide member and each side edge alignment member are configured to shift to positions in the sheet width direction in an integral manner using a common drive motor.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 2, 2014
    Assignee: Nisca Corporation
    Inventors: Hiroshi Maejima, Hiroto Akiyama
  • Publication number: 20140159302
    Abstract: Sheets conveyed to a loading tray are stacked on the loading tray while they are sequentially aligned with an aligning unit, then, when pressing processing is performed with respect to a bundle of the stacked sheets, a presser is moved downward in a state where ends of the sheet bundle are abutting-held with the aligning unit. The sheet bundle is aligned by performing the pressing with a presser member gradually from a first reference fence side, to gradually discharge air staying in the sheet bundle from a first elastic body fence side.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 12, 2014
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Mamoru FUKUDA
  • Patent number: 8714547
    Abstract: A paper discharge apparatus including, a paper loading portion for loading a paper which is discharged; a paper rear-end abutting portion which a rear end of paper in a paper conveying direction abuts; a pair of paper holding members for holding the paper at the paper holding position when the paper is discharged; a paper holding member moving device which is connected to at least one of the pair of the paper holding members and moves the pair of the paper holding members from a paper holding position to a paper loading position; when the pair of the paper holding members reach the paper loading position, the paper holding member moving device moves at least one of the pair of the paper holding members in the opposite direction of the paper conveying direction and makes the rear end of the holding paper abut the paper rear-end abutting portion.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: May 6, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masaaki Uchiyama, Hiroyuki Wakabayashi, Tsutomu Anezaki
  • Patent number: 8712314
    Abstract: A method of a sheet alignment includes carrying a sheet from a sheet discharging port; transferring the sheet on a tray device toward a sheet end regulating device; moving the sheet on the tray device in a width direction orthogonal to the sheet discharging direction for widthwise alignment; and abutting again the sheet on the tray device against the sheet end regulating device while the sheet is in the widthwise alignment. When the sheet on the tray device is transferred toward the sheet end regulating device, the sheet is transferred at a predetermined speed. Before the sheet abuts against the sheet end regulating device, the speed is reduced to provide a conveying force to the sheet without stopping. While the conveying force is continuously applied to the sheet, the sheet is aligned in the width direction to thereby prevent skewing of the sheet relative to the sheet end regulating device.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 29, 2014
    Assignee: Nisca Corporation
    Inventors: Eiichi Kubo, Masato Hosaka
  • Patent number: 8695971
    Abstract: In a sheet processing apparatus, a pair of regulating members is provided at a pair of joggers so that the regulating members are movable together with the joggers. When the pair of joggers is laterally moved, the pair of regulating members also laterally moves together with the pair of joggers. By moving the pair of joggers to passage positions, the pair of regulating members regulates the lateral ends of a sheet, which falls and is stacked on a first stacking tray.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Sekiyama, Masayoshi Fukatsu, Atsushi Ogata, Hiroharu Tsuji, Yuri Yoshimura
  • Patent number: 8668198
    Abstract: A controller controls operations of a sheet conveying portion and a sheet feeding portion in such a manner that an operation for feeding a preceding sheet by the sheet feeding portion is started after a downstream portion of a subsequent sheet conveyed by the sheet conveying portion is overlapped an upstream portion of the preceding sheet stacked on the stacking portion, and the downstream edge of the preceding sheet is caused to abut against the reference member by the sheet feeding portion in a state where the upstream portion of the preceding sheet and the downstream portion of the subsequent sheet are maintained in an overlapped state.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: March 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroharu Tsuji, Masatoshi Yoshida, Tomooku Koyama, Junichi Sekiyama
  • Patent number: 8657283
    Abstract: There are provided a sheet stacking apparatus capable of stably stacking a large number of sheets and an image forming apparatus. The sheet stacking apparatus configured to stack sheets includes a plurality of discharge units disposed to an apparatus main body in a vertical direction and configured to discharge sheets, a plurality of sheet stacking units disposed to be independently elevatable on a side surface of the apparatus main body corresponding respectively to the plurality of discharge units and configured to stack thereon the sheets discharged from the discharge units, and an alignment unit disposed between the plurality of sheet stacking units and configured to sequentially align a position in a width direction perpendicular to a discharging direction of the sheets stacked on a lower sheet stacking unit among the plurality of sheet stacking units.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: February 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Iwata, Hideki Kushida
  • Patent number: 8651480
    Abstract: A finisher 100 includes a pair of bundle discharge rollers 130, a lower stack tray 137, and a width-direction aligning portion 200. The width-direction aligning portion includes a pair of aligning members 1 and a driving motor. The aligning member includes a pair of first aligning members 91 that is rotatably supported while being movable in the sheet width direction orthogonal to the discharge direction and a pair of second aligning members 92. The driving motor rotates the pair of first aligning members and moves the pair of first aligning members in the width direction. When the pair of first aligning members rotates and one of the pair of second aligning members abuts on the sheet, the pair of second aligning members forms opposite surfaces in which the sheet can be aligned in the width direction, and the pair of first aligning members align the sheet by the opposite surfaces.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: February 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyoshi Watanabe, Hideki Kushida, Toshiyuki Iwata
  • Patent number: 8632067
    Abstract: A post-processing device includes a transport section transporting a sheet transported at a predetermined speed from an upstream side toward a downstream side; a load section on which the transported sheet is loaded; an aligner aligning the loaded sheet; an alignment controller performing control such that the aligner performs the alignment process on the sheet transported from the transport section to the load section for every predetermined number of sheets; and a transport controller controlling the transport section by causing the transport section to transport the sheet at a reduced speed for the every predetermined number of sheets so that the sheet transported at the reduced speed reaches the load section after the aligner completes the sheet alignment process that is performed on a previous sheet transported immediately prior to the sheet after the previous sheet is loaded on the load section.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: January 21, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroaki Awano
  • Patent number: 8608162
    Abstract: An image forming apparatus including an image forming unit, a discharger, and a presser including a swingable member and a contact member is provided. The contact member is partially attached to the swingable member in a condition to create clearance between an unattached part and the swingable member. Weights of the contact member and the swingable member affect the sheet when the recording medium contacts the contact member and the contact member is moved to swing upward along with the swingable member by the recording medium. Resilient force is provided by the contact member to affect the recording medium when the recording medium contacts the contact member and the contact member is moved in a direction to narrow the clearance.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: December 17, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazutoshi Nakamura, Takashi Saito
  • Patent number: 8556566
    Abstract: Aspects of embodiments of the present invention are directed toward a method of stacking disk-shaped substrates for polishing without using a centering shaft and an apparatus for implementing the method. A stack of disk-shaped substrates can be concentrically aligned without contacting the inside circumferential surfaces of the disk-shaped substrates by applying pressure to the outside edges of the disk-shaped substrates in different lateral directions.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 15, 2013
    Assignee: WD Media, LLC
    Inventors: Shoji Suzuki, David A. Throckmorton
  • Patent number: 8556258
    Abstract: To provide a sheet storage apparatus for enabling a sheet to be aligned so that the length-direction position and width-direction position of the sheet coincide with correct reference positions in positioning and storing the sheet in a predetermined position on a tray, it is configured that a paper feed rotating member in a center portion of a sheet that is carried out onto the tray and a paper-pressing guide in the side portion are disposed swingably up and down in the sheet load direction, and that the paper-pressing guide moves upward integrally with the paper feed rotating member floating a predetermined amount or more from the sheet top surface on the tray corresponding to a curl of the sheet.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: October 15, 2013
    Assignee: Nisca Corporation
    Inventors: Tsuyoshi Mizubata, Naoya Nakayama, Daiki Komiyama, Hisashi Osada, Kenji Yoshida, Eiji Fukasawa, Kazunori Hatakawa
  • Patent number: 8540229
    Abstract: The alignment unit includes: an upstream-side pressing portion that presses a side edge of the sheet; and a downstream-side pressing portion that presses the side edge of the sheet. The downstream-side pressing portion includes: a first pressing portion that is arranged downstream of the center of gravity of a predetermined-size sheet and upstream of the downstream edge of the predetermined-size sheet and that presses the predetermined-size sheet; and a second pressing portion that is arranged downstream of the downstream edge of the predetermined-size sheet and downstream of the center of gravity of a large-size sheet having twice or more than twice the length of the predetermined-size sheet and that presses the large-size sheet. The second pressing portion is formed to protrude further toward the center side in the width direction than the first pressing portion.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroharu Tsuji
  • Patent number: 8534666
    Abstract: A sheet discharged from a sheet discharging portion arranged at a distance from a sheet stacking portion, to a stacking portion, is conveyed along the sheet stacking portion while the sheet edge on an upstream side in a sheet discharging direction is held. A shifting unit arranged downstream of the sheet stacking portion in the sheet discharging direction shifts the discharged sheet from the sheet discharging portion toward the downstream side in the sheet discharging direction while a pressing member presses the sheet to the sheet stacking portion.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: September 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yusuke Obuchi
  • Patent number: 8511679
    Abstract: A sheet processing device in the form of an offset stacker, a sheet fence (103, 104) is provided on a side of sheets (S) to be processed stacked on a stack tray (3) opposite from a jogger (101, 102) so that the sheet fence accurately defines a final offset position of the sheets. When a transient offset position at which the sheets are stacked on the stack tray varies from one sheet to another, the side edges of sheets selected for offset stacking can be lined up without fail owing to the jogging action of the jogger and the supporting action of the sheet fence. A pair of joggers may be arranged on either side of the sheets, along with a pair of corresponding sheets fences on the opposing sides. The jogger and sheet fence on a same side may be supported by a common moveable frame (107, 108).
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: August 20, 2013
    Assignee: Gradco (Japan) Ltd.
    Inventors: Kuniaki Kimura, Kenichi Watanabe
  • Patent number: 8505911
    Abstract: A sheet discharging tray device includes: a discharging section from which a sheet is discharged; a discharging tray on which the sheet discharged from the discharging section is stacked sequentially; a tray drive section which drives the discharging tray in a tray shift direction that is perpendicular to a sheet discharging direction from the discharging section with reference to a sheet surface; a controller which conducts a tray shift operation that shifts a position of the discharging tray under a condition of the number of sheets stacked on the discharging tray, and a sheet detection section which detects an alignment deviation in the tray shift direction. The controller changes an operation status of the discharging tray when a tray shift operation is conducted and changes a discharging operation of a sheet to the discharging tray, based on a detected result of the sheet detection section.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: August 13, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Takeshi Tamada, Eiji Sugimoto, Kazumichi Yamauchi, Hideo Yamane
  • Publication number: 20130187324
    Abstract: A sheet processing apparatus has a process tray onto which a sheet is stacked, an aligning member that conveys the sheet toward a sheet edge regulating member arranged on an upstream end portion of the process tray in a contact state in which the aligning member, the sheet edge regulating member regulating the leading edge of the sheet, and a switching member that switches a state of the aligning member between the contact state where the aligning member is in contact with the sheet, and a non-contact state where the aligning member is spaced apart from the process tray. While the sheet on the process tray is being conveyed toward the sheet edge regulating member by the aligning member, the switching member switches the aligning member from the contact state to the non-contact state, and further switches the aligning member from the non-contact state to the contact state.
    Type: Application
    Filed: February 21, 2013
    Publication date: July 25, 2013
    Applicant: CANON FINETECH INC.
    Inventor: Canon Finetech Inc.
  • Patent number: 8454010
    Abstract: In a method of aligning a sheet on a tray, the sheet on the tray is transferred toward a stopper member in one direction by a transfer device. Then, the sheet is moved in a sheet width direction perpendicular to the one direction to align the sheet in the sheet width direction by an aligning device. Further, force is provided to the sheet on the tray to move the sheet in the one direction by the transfer device while the aligning device regulates the sheet in the sheet width direction.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: June 4, 2013
    Assignee: Nisca Corporation
    Inventors: Takashi Saito, Makoto Shimura
  • Patent number: 8444141
    Abstract: A sheet processing apparatus comprises: an first stack portion which temporarily stacks a sheet thereon; a first stack portion which is disposed under the first stack portion and stacks thereon a sheet discharged from the first stack portion; a second stack portion which is disposed above the first stack portion and stacks a sheet thereon; a stack reference wall which serves as an abutment reference at an end of the sheet on the second stack portion; and an alignment reference wall which is disposed more upstream in the sheet conveyance direction than the stack reference wall and serves as an abutment reference at an end of the sheet on the first stack portion; wherein the second stack portion has such a length that an end of the sheet stacked on the first stack portion cannot project from the second stack portion, as viewed from above in a vertical direction.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: May 21, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Sekiyama, Masayoshi Fukatsu, Atsushi Ogata, Hiroharu Tsuji
  • Patent number: 8398078
    Abstract: An image forming apparatus includes a sheet aligning mechanism that aligns a sheet of medium stacked by causing the sheet of medium to move in a shift direction orthogonal to a feed direction. The sheet aligning mechanism includes: a pair of alignment members having a pair of alignment surfaces; a rotational waiting position detector that detects whether the alignment members have moved to a rotational waiting position at which the alignment members wait; a rectilinear waiting position detector that detects whether the alignment members have moved to a rectilinear waiting position; and a post-processing controller that performs correction of a rotational angle and amount of movement of the alignment members performed by a rotational movement drive mechanism, based on signals output from the rotational waiting position detector and the rectilinear waiting position detector.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 19, 2013
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Takashi Kotani
  • Patent number: 8393617
    Abstract: A sheet alignment device includes a first alignment arm, a second alignment arm, a first sensor and a controller. The first alignment arm includes a first blocking piece and a second blocking piece. During the sheet-aligning action of each sheet, the first alignment arm is moved for a preset distance from a standby position. Then, the first alignment arm is moved back to the standby position, and a waiting time is required to introduce a next sheet into the sheet placement tray. When the first sensor is no longer interrupted by the second blocking piece of the first alignment arm, the controller starts to calculate the moving distance of the first alignment arm. Since the moving distance of the first alignment arm is calculated at the same start point during the sheet-aligning action of each sheet is performed, the possibility of resulting in the moving distance error is minimized.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: March 12, 2013
    Assignee: Primax Electronics, Ltd.
    Inventors: Ching-Tse Wang, Chia-Wen Wu
  • Patent number: 8387974
    Abstract: An image forming apparatus has a sheet stacking apparatus including a tray on which sheets are stacked, and an aligning member aligning the sheets stacked on the tray. The aligning member aligns sheets stacked, on a sheet previously stacked on the tray, with a displacement in an aligning direction of the aligning member with respect to the sheet previously stacked. An aligning operation of the aligning member is changed on the basis of whether or not the number of the sheets stacked on the sheets previously stacked is a predetermined number or less.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: March 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenichi Hayashi
  • Patent number: 8371579
    Abstract: A sheet alignment apparatus includes: a sheet storage section for storing sheets; a sheet push-up section for conveying the sheets in the sheet discharge direction; a sheet discharge section having a pair of forward and reverse rotatable rollers configured to align sheet between the rollers and the sheet push-up section and to then discharge the sheets by sandwiching the sheet in the nip portion between the pair of rollers; and a sheet width direction alignment section located between the sheet storage section and the sheet discharge section and configured to align the sheets in the width direction perpendicular to the sheet discharge direction, wherein the sheet discharge section causes the pair of rollers in the reverse direction so as to separate the sheet edge in the sheet discharge section from the nip portion before the lateral alignment performed by the sheet width direction alignment section.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: February 12, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Masahiro Kaneko
  • Patent number: 8366103
    Abstract: A sheet post-processing apparatus includes: a sheet conveying unit that conveys a sheet; a sheet accumulating feed path that is arranged on a downstream side of the sheet conveying unit in a sheet conveying direction and being capable of accumulating therein a plurality of sheets; a stopping member that stops a leading edge of a sheet conveyed into the sheet accumulating feed path; a width aligning unit that aligns a width of the sheet stopped by the stopping member and accumulated in the sheet accumulating feed path; and a control unit that performs control to cause: the sheet conveying unit to convey a sheet into the sheet accumulating feed path; the stopping member to stop the leading edge of the sheet; and the width aligning unit to align the width of a sheet every time a sheet is accumulated in the sheet accumulating feed path.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: February 5, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Masanobu Kimata
  • Patent number: 8366100
    Abstract: A discharge tray apparatus according to one embodiment of the present invention is a discharge tray apparatus wherein a plurality of sheets of recording paper that have been successively transported at a fixed speed and a fixed interval, discharged from a discharge opening, and have landed on a discharge tray, are received and placed onto the discharge tray, the discharge tray apparatus being provided with a discharge tray moving means that performs a tray shift operation that moves the discharge tray in a horizontal direction approximately perpendicular to the discharge direction, such that after a preceding paper successively transported earlier has been placed on the discharge tray, a succeeding paper succeedingly transported after the preceding paper is placed at a position different from the placement position of the preceding paper on the discharge tray.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: February 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masaru Tsuji
  • Patent number: 8328186
    Abstract: A post-processing method involves using a standby tray to receive a paper sheet to be supplied from a digital copier, a processing tray to receive a paper sheet dropped from a standby tray, a feed member which guides the rear end of a paper sheet received in a standby tray in the feeding direction to a processing tray, and scrapes and sends the rear end of a paper sheet dropped onto a processing tray to a stopper, a press member which clamps the rear end of a paper sheet received in a standby tray by cooperating with two feed members, and a stapler to staple the aligned rear ends of paper sheets. When a first paper sheet is supplied to the standby tray, the press member presses the rear end of the first paper sheet, to receive a second paper.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: December 11, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Yasunobu Terao, Mikio Yamamoto, Yoshiaki Sugizaki, Hajime Yamamoto, Hiroyuki Taki
  • Patent number: 8326208
    Abstract: A paper discharge device includes a discharge member, a paper carry portion, a first moving section, a pair of paper side end register sections, a second moving section, and a discharge paper control section. The paper carry portion carries thereon paper discharged by the discharge member. The first moving section moves the discharge member in a paper width direction to shift the position of paper. The pair of paper side end register sections holds the paper from both sides in the paper width direction. The second moving section moves the pair of paper side end register sections in the paper width direction. The discharge paper control section, when the shifting direction of the paper by the first moving section is switched from one direction to the other direction, controls the second moving section to move the pair of paper side end register section in the other direction.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 4, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Osamu Tamura, Yoshiyuki Takaishi, Ryuichi Sato
  • Publication number: 20120299238
    Abstract: A sheet processing device in the form of an offset stacker, a sheet fence (103, 104) is provided on a side of sheets (S) to be processed stacked on a stack tray (3) opposite from a jogger (101, 102) so that the sheet fence accurately defines a final offset position of the sheets. When a transient offset position at which the sheets are stacked on the stack tray varies from one sheet to another, the side edges of sheets selected for offset stacking can be lined up without fail owing to the jogging action of the jogger and the supporting action of the sheet fence. A pair of joggers may be arranged on either side of the sheets, along with a pair of corresponding sheets fences on the opposing sides. The jogger and sheet fence on a same side may be supported by a common moveable frame (107, 108).
    Type: Application
    Filed: June 12, 2012
    Publication date: November 29, 2012
    Inventors: Kuniaki KIMURA, Kenichi WATANABE
  • Patent number: 8320030
    Abstract: A storing and processing apparatus for a record member includes: a record member storing portion that stores therein a record member being transported along the record member transport route; a moving unit that moves up or down the record member storing portion; a positioning and storing portion that temporarily positions and stores the record member; an arranging unit that stocks and arranges record members in the positioning and storing portion; a discharge member that discharges, from a discharge position, the record member existing on the record member transport route or on the positioning and storing portion toward the record member storing portion; a record member type determining unit and, a control unit that drives the moving unit to move up or down the record member storing portion.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: November 27, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Masatoshi Kimura
  • Patent number: 8256766
    Abstract: A sheet aligning mechanism that aligns sheets of paper includes, in a shift tray, a pair of main joggers and a pair of sub joggers, which are arranged downstream of the main joggers in a sheet discharge direction, for use in width-direction alignment of the sheets. One of the sub joggers is configured to move from a position where the sub jogger is not upwardly receded to an upwardly-receded position so that the thus-opened up space, of which height corresponds to a height difference between the two positions, can be utilized for sheet removal.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: September 4, 2012
    Assignee: Ricoh Company, Ltd.
    Inventor: Hirotaka Iwata
  • Patent number: 8240664
    Abstract: A sheet processing apparatus according to the invention includes a conveying portion that conveys a sheet; and an abutment member against which an end of the sheet in a conveying direction abuts, the sheet being conveyed by the conveying portion. Herein, the abutment member is movable so as to change a distance between the abutment member and the conveying portion adjacent to the abutment member based on sheet information about the stiffness of a sheet, when an end of the sheet in the conveying direction is abutted against the abutment member.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: August 14, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akito Sekigawa
  • Patent number: 8201825
    Abstract: In order to reduce the stack failure of a sheet bundle, there is provided a sheet stacking/aligning apparatus comprising: a stack tray for stacking sheets thereon; and a rear end aligning member for pushing and aligning the rear end of a sheet conveyed onto the stack tray. The rear end aligning member includes sheet holding paddle for holding the sheets stacked on the stack tray.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: June 19, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisaku Kamiya, Mitsushige Murata, Hiromichi Tsujino, Yuzo Matsumoto, Takako Hanada
  • Patent number: 8152163
    Abstract: A sheet stacking apparatus includes a discharging portion configured to discharge a sheet, a stacking portion configured to stack a discharged sheet, and a deforming member configured to deform the sheet to be discharged by the discharging portion, wherein the deforming member decreases a deformation amount of the sheet as a stacking amount of the sheets stacked on the stacking portion increases.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: April 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomonori Kitan
  • Patent number: 8136807
    Abstract: In a sheet aligning apparatus, a pair of sheet aligning members stops at three positions such that when a sheet aligning operation is not conducted, the pair of sheet aligning members is stopped at the first position of an upper level so as not to come in contact with sheets discharged from a discharging section, when the sorting section shifts for sorting, the pair of sheet aligning members is stopped at the second position of a middle level lower than the first position so as not to come in contact with sheets stacked on the tray, and when a sheet aligning operation is conducted, the pair of sheet aligning members is stopped at the third position of a lower level so as to come in contact with the top surface of the tray or the upper surface of the sheets stacked on the tray.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: March 20, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masaaki Uchiyama, Hitoshi Tamura, Hiroyuki Wakabayashi
  • Patent number: 8128086
    Abstract: A sheet discharged from a sheet discharging portion arranged at a distance from a sheet stacking portion, to a stacking portion, is conveyed along the sheet stacking portion while the sheet edge on an upstream side in a sheet discharging direction is held. A shifting unit arranged downstream of the sheet stacking portion in the sheet discharging direction shifts the discharged sheet from the sheet discharging portion toward the downstream side in the sheet discharging direction while a pressing member presses the sheet to the sheet stacking portion.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: March 6, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yusuke Obuchi