With Selective Actuation Of Means For Inverting Duplex Sheets Patents (Class 271/291)
  • Patent number: 11936823
    Abstract: There is provided a medium transport device including a placement section on which a medium is placed, a transport path through which the medium is transported, a feeding roller that feeds the medium, a set guide configured to switch between a contact position where the medium and the feeding roller are brought into contact and a separation position where the medium and the feeding roller are separated, a restricting section configured to switch between a restricting position for restricting feeding of the medium by coming into contact with a leading end of the medium and an allowing position for allowing the feeding of the medium, and a drive source that generates power for switching of the set guide and switching of the restricting section. The set guide and the restricting section are provided below the transport path in a direction of gravity.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: March 19, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhito Noda, Ryoichi Shuto, Masaki Namiki
  • Patent number: 11827010
    Abstract: Monitoring device (50, 52) for monitoring a plurality of containers (10) which have been printed with at least one first image element (B1-B8) by a direct printing machine (20), having a transport device (40) which supplies and/or discharges the printed containers (10) to be monitored along a predefined transport path, in particular individually and successively, to the monitoring device (50, 52), wherein the monitoring device (50, 52) monitors the printed containers (10) at least with respect to the first image element (B1-B8) applied by the direct printing machine (20), and has a memory device (53) which stores the at least one set of first image elements (B1-B8) to be monitored. According to the invention, for each container (10) to be monitored, the monitoring device (50, 52) carries out monitoring taking into account at least one image element (B1-B8) uniquely assigned to this container (10) to be monitored from the set of first image elements (B1-B8) to be monitored.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: November 28, 2023
    Assignee: KRONES AG
    Inventor: Anton Niedermeier
  • Patent number: 11760598
    Abstract: A printing apparatus includes a stacking portion on which a print medium printed by a printing unit configured to perform printing is stacked, a discharge unit configured to discharge the print medium printed by the printing unit to the stacking portion, a passage forming portion arranged facing the stacking portion and configured to form a discharge passage of the print medium together with the stacking portion, and an outlet port located at a downstream end of the stacking portion and a downstream end of the passage forming portion in a conveying direction of the print medium. The passage forming portion includes an opening/closing portion which is displaceable between a closed position for forming the discharge passage and an open position for opening access to the stacking portion.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: September 19, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Obata, Yoshiaki Suzuki, Kenji Shimamura, Ryoya Shinjo, Ryosuke Araki
  • Patent number: 11718494
    Abstract: A printing apparatus includes a stacking portion on which a print medium printed by a printing unit configured to perform printing is stacked, a discharge unit configured to discharge the print medium printed by the printing unit to the stacking portion, a passage forming portion arranged facing the stacking portion and configured to form a discharge passage of the print medium together with the stacking portion, and an outlet port located at a downstream end of the stacking portion and a downstream end of the passage forming portion in a conveying direction of the print medium. The passage forming portion includes an opening/closing portion which is displaceable between a closed position for forming the discharge passage and an open position for opening access to the stacking portion.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: August 8, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Obata, Yoshiaki Suzuki, Kenji Shimamura, Ryoya Shinjo, Ryosuke Araki
  • Patent number: 11623837
    Abstract: An image reading apparatus, includes: a supply tray; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth as the document supported by the paper feed tray is decreased, the fourth position being higher than the third position; a first drive source, which generates a drive force; a first rotation body, which moves the movable plate by transmitting the drive force from the first drive source to the movable plate; and a second rotation body, which moves the discharge unit by transmitting the drive force from the first drive source to the discharge unit, wherein a diameter of the first rotation body and a diameter of the second rotation body are different from each other.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: April 11, 2023
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tetsuo Ito
  • Patent number: 11418666
    Abstract: An image forming system includes: a first storage that stores paper ejected after image formation processing; a second storage that stores the paper transferred from the first storage; a hardware processor that controls an operation of the image forming system; and a notifier that notifies of a state of the image forming system, wherein the hardware processor determines whether the paper remains in the first storage, and allows the notifier to notify that the paper is left untaken based on determination that the paper remains in the first storage.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: August 16, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hiroaki Aizawa
  • Patent number: 11034166
    Abstract: A recording apparatus includes: a housing body in which a recording portion that performs recording is housed; a curved reversal path along a curve of which the medium, after the recording, is turned over to be guided to a position above the recording portion; a medium receiving tray that is provided over the recording portion at a position of horizontally overlapping with the housing body and receives the medium ejected through the curved reversal path; a relaying portion that is provided over the medium receiving tray at a position of horizontally overlapping with the housing body and sends the medium coming along the curved reversal path to an area horizontally outside the housing body; and a course switcher that switches a course of the medium beyond the curved reversal path to either the medium receiving tray or the relaying portion.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 15, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Kodama, Isao Momose
  • Patent number: 10899567
    Abstract: An image forming apparatus, including a main chassis having a discharge tray and a switchback tray in an upper position with respect to the discharge tray; an image forming unit; a discharge roller to discharge a recording sheet conveyed through the image forming unit onto the discharge tray; a duplex conveyer to invert the sheet and convey the inverted sheet to return to the image forming unit; and a switchback roller being rotatable in a normal direction to convey the sheet toward the switchback tray and a reverse direction to convey the sheet to the duplex conveyer; is provided. The main chassis includes a pair of walls, each of which extends in a vertical direction and in a conveying direction of the sheet and is arranged in adjacent to the switchback tray such that the switchback tray is interposed between the pair of walls.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: January 26, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shougo Sato
  • Patent number: 10289067
    Abstract: An image forming apparatus includes an image forming unit to form an image on a sheet, a sheet ejection section to which a relay unit and a sheet processing apparatus are removably coupled, a driving-side ejection roller disposed in the sheet ejection section, to eject the sheet outside the apparatus, a plurality of driven-side ejection rollers that are replaceable, one of which is disposed facing the driving-side ejection roller, and a roller holder removably secured to the sheet ejection section to hold the one of the plurality of driven-side ejection rollers. Each driven-side ejection roller has a shaft and a plurality of roller bodies attached to the shaft and lined in an axial direction of the shaft. The driven-side ejection roller is replaced with another driven-side ejection roller in accordance with whether or not the relay unit and the sheet processing apparatus are coupled to the sheet ejection section.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 14, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadayasu Enomoto, Shintaroh Yamada
  • Patent number: 10273104
    Abstract: An image forming apparatus, including a main chassis having a discharge tray and a switchback tray in an upper position with respect to the discharge tray; an image forming unit; a discharge roller to discharge a recording sheet conveyed through the image forming unit onto the discharge tray; a duplex conveyer to invert the sheet and convey the inverted sheet to return to the image forming unit; and a switchback roller being rotatable in a normal direction to convey the sheet toward the switchback tray and a reverse direction to convey the sheet to the duplex conveyer; is provided. The main chassis includes a pair of walls, each of which extends in a vertical direction and in a conveying direction of the sheet and is arranged in adjacent to the switchback tray such that the switchback tray is interposed between the pair of walls.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: April 30, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shougo Sato
  • Patent number: 10088793
    Abstract: A post-processing apparatus includes a post-processing section configured to execute post-processing on a sheet conveyed from an image forming section, and a controller configured to set a first post-processing speed or a first number of sheets to be post-processed if the post-processing section is performing the post-processing on first sheets, and a second post-processing speed or a second number of sheets to be post-processed if the post-processing section is performing the post-processing on second sheets. The second sheets are sheets that have been decolored at least a predetermined number of times, and the first sheets are sheets that have been decolored less than the predetermined number of times.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: October 2, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hidetoshi Yokochi
  • Patent number: 9921521
    Abstract: A sheet processing apparatus comprises a sheet placing section in which recording media are stacked, a storage section configured to record a total amount of toner on the recording media stacked in the sheet placing section, and a control section configured to determine whether or not the recording media stacked in the sheet placing section is likely to stick when a new recording medium is stacked thereon, based on the total amount of toner on the recording media stacked in the sheet placing section.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: March 20, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Shunichi Megawa
  • Patent number: 9885993
    Abstract: Upon occurrence of a paper jam on a main conveying route, a controller performs control of stopping paper conveyance at a section of the main conveying route upstream of a position of the paper jam in a conveying direction and discharging sheets at a section of the main conveying route downstream of the position of the paper jam in the conveying direction, and performs control of stopping paper conveyance at a circulation conveying route. Upon occurrence of a paper jam on the circulation conveying route, a controller performs control of stopping paper conveyance at a section of the circulation conveying route upstream of a position of the paper jam, and performs control of discharging sheets at a section of the circulation conveying route downstream of the position of the paper jam and at the main conveying route.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: February 6, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Masashi Hara
  • Patent number: 9663318
    Abstract: A noise dampened re-drive assembly for an imaging device. The re-drive assembly includes a two position, pivotally mounted diverter gate that is driven by a reversible motor coupled to a sector gear fixedly mounted to the diverter gate. A slot is provided in the sector gear with a stop pin positioned in the slot. An end of the slot strikes the stop pin as the diverter gate reaches one of its positions. A cantilevered mounted T-shaped dampener having a dampening finger at each of its free ends is mounts in the slot. As the end of the slot nears the stop pin when the diverter gate approaches one of its two positions, the dampening finger adjacent thereto engages the stop pin and reduces the acoustical impulse of the slot end striking the stop pin. A pair of dampeners mounted in a mirror image fashion may be provided in the slot.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: May 30, 2017
    Assignee: Lexmark International, Inc.
    Inventor: William Michael Connors
  • Patent number: 9648186
    Abstract: A scanning apparatus is provided with a conveyer having a plurality of conveying rollers and configured to convey an original sheet, a scanning device configured to scan the original sheet, and a controller. The controller is configured to execute a detection process of detecting an error which causes stoppage of conveying the original sheet by the conveyer, an identifying process of identifying a type of the error detecting in the detecting process, and a notification process of notifying a user of an operation which the controller encouraging the user to execute when the controller causes the conveyer to re-convey the original sheet that has been stopped, depending on the type of the error identified by the identifying process.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: May 9, 2017
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Toshiki Motoyama
  • Patent number: 9592978
    Abstract: The present invention provides a medium protection device and a medium separating and stacking device capable of avoiding damage to a medium when moving the medium along a guide. In a banknote cassette, a guide body is attached to a circumferential side face of a central body of a tongue piece roller in a range not provided with tongue pieces. When feeding out banknotes, the banknote cassette stops the tongue piece roller in a retracted state, thereby positioning an outer circumferential face of the guide body in the vicinity of the surface of a front upper curved portion of a hole in the conveyance guide, such that the hole can be placed in an almost completely blocked state. The present invention can accordingly prevent the vicinity of a corner of a banknote from entering the hole, enabling creasing during conveyance to be forestalled.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: March 14, 2017
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Michio Suetaka, Takamoto Yokote, Satoru Iwasaki, Hajime Togiya
  • Patent number: 9580266
    Abstract: A media diverter system for an imaging device including a single motor coupled to one of a plurality of diverter assemblies for sequentially directing media sheets from an input path to one of a plurality of output destinations. Each diverter assembly includes a gate moveable between a first and a second position for opening a path between an input and a first and a second output, respectively, a pivot arm coupled to the gate, and a drive gear providing a lobe having up and down camming surfaces on which the pivot arm travels. The single drive motor rotatably is coupled to the drive gears, and, as the drive motor is driven, the drive gears synchronously rotate and corresponding gates are moved to one of a first and a second position for providing a media path from an input of the system to a selected one of the output destinations.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 28, 2017
    Assignee: Lexmark International, Inc.
    Inventors: Julian Ariel Bell'Albero, Jayron Malicsi Dela Cruz, Kevin Matthew Johnson, Brian Keith Owens, Roel Firmeza Pantonial, Marvin Aliviado Rodriguez, Donald Norman Spitz
  • Patent number: 9457594
    Abstract: An image recording apparatus includes a first upper-position guide member, a first lower-position guide member defining a first feeding path and a first feeding portion feeding a sheet in a feeding direction along the first feeding path. The image recording apparatus further includes a recording portion located downstream of the first feeding portion in the feeding direction, a second upper-position guide member, a second lower-position guide member defining a second feeding path and a second feeding portion comprising at least one pair of rollers each consisting of an upper-position roller and a lower-position roller. The second feeding portion feeds the sheet along the second feeding path and a first axis of the upper-position roller is located upstream of a second axis of the lower-position roller in the feeding direction.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: October 4, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji Samoto, Yuji Koga, Takashi Omura
  • Patent number: 9296585
    Abstract: A sheet conveying apparatus includes a conveying member conveying and rotating a sheet, a moving member configured to be movable between a first guiding position and a second guiding position, a first abutting portion configured to stop the moving member at the first guiding position, a second abutting portion configured to stop the moving member at the second guiding position, and a planetary gear mechanism.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 29, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Yamada
  • Patent number: 9216600
    Abstract: A printer apparatus includes a presenter unit including a first roller and a second roller connected to the first roller by a connection arm to move along an outer periphery of the first roller in accordance with the rotation of the first roller between a first rotating position and a second rotating position, rotate at the first rotating position in accordance with the rotation of the first roller to transfer a cut printed recording paper in an ejecting direction while interposing with the first roller, and rotate at the second rotating position in accordance with the rotation of the first roller to transfer the cut printed recording paper in a recovering direction while interposing with the first roller.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: December 22, 2015
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Tetsuhiro Ishikawa, Sumio Watanabe, Yukihiro Mori, Masaru Kihara, Masahiro Tsuchiya
  • Patent number: 9144952
    Abstract: A sheet processing apparatus, including a sheet processing section which performs predetermined processing on sheets of paper to form a booklet; a booklet ejection section which nips the booklet and ejects the booklet outside; an ejected paper stacking section on which the booklet ejected by the booklet ejection section is stacked; a shutter section which is provided between the booklet ejection section and the ejected paper stacking section and is openable and closable; and an opening and closing mechanism which performs an opening and closing operation that is opening the shutter section when the booklet is ejected by the booklet ejection section and closing the shutter section after the booklet is ejected.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: September 29, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Keisuke Oshima
  • Patent number: 9132979
    Abstract: A shuttling nip set sheet inverter is for use with a digital printing system. A shuttle nip selectively rotates in a forward or reverse direction. The shuttle nip rollers are mounted for mutual revolving orbit about an orbital axis. The shuttle nip rollers are also mounted for mutual translation in the process direction. An inversion nip is disposed adjacent a main nip and downstream from the shuttle nip. A diverter gate has a first end adjacent the shuttle nip and a second end adjacent the inversion nip. In duplex operation, the media sheet lead edge will pass through the shuttle nip. The shuttle nip will revolve orbitally and translate downstream. The trail edge will become the lead edge, inverting the media sheet, which enters the main nip. The diverter gate moves from an inversion position to a storage position away from the process path.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: September 15, 2015
    Assignee: Xerox Corporation
    Inventors: Aaron M. Moore, Carlos M. Terrero, Timothy G. Shelhart, Roberto A. Irizarry
  • Patent number: 8948681
    Abstract: An image forming apparatus includes an image forming unit forming an image on a recording sheet; a transport unit transporting the recording sheet; a support surface supporting the recording sheet; a rotating member having an outer peripheral surface pressed against the support surface and rotationally following the recording sheet when the recording sheet passes through between the support surface and the outer peripheral surface; an ascertaining unit ascertaining a length of the recording sheet on the basis of an amount of rotation of the rotating member; and a restricting unit restricting a movement of the rotating member that moves toward the support surface after the recording sheet passes through between the support surface and the outer peripheral surface, the restricting unit preventing the outer peripheral surface, which comes into contact with the recording sheet, and the support surface from coming into contact with each other.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: February 3, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takao Furuya, Yoshinari Iwaki, Minoru Ohshima
  • Patent number: 8939448
    Abstract: There is provided an image forming apparatus including a driving source, a switchback roller which switches between a normal rotation direction and a reverse rotation direction, first and second gear train for rotating the switchback roller in the normal and reverse rotation directions, respectively, a switching mechanism which switches among a first mode for transmitting driving force to the first gear train, a second mode for transmitting the driving force to the second gear train, and a third mode for not to transmit the driving force, a switching element which switches between a first state allowing switching of the switching mechanism into the first or third mode and a second state allowing switching of the switching mechanism into the second mode; and a controller which controls a state change of the switching element between the first state and the second state.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: January 27, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yohei Hashimoto
  • Patent number: 8919773
    Abstract: A sheet conveyor included in an image forming apparatus includes a conveying roller rotatable in normal and reverse directions to convey a sheet in opposite sheet conveyance directions, a switching guide rotatable about a support shaft to guide the sheet to a path, a first switchback mechanism performing a first operation of changing a direction of rotation of the conveying roller, a first actuator actuating the first switchback mechanism, a second switchback mechanism performing a second operation of changing a position of the switching guide, a second actuator actuating the second switchback mechanism. The switchback mechanisms and the actuators are configured to be replaceable with a switchback linking mechanism, by employing a linking member, configured to link the first and second operations to be actuated by one actuator of the first and second actuators without changing an arrangement of the one actuator of the first and second actuators.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: December 30, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Shinichi Kato
  • Patent number: 8840328
    Abstract: When a size of a reversing unit is smaller than that of a printing medium, errors can be detected without adding any other mechanism, and if such errors are not caused by a paper jam, the printing can be continued. A printing apparatus is provided with: an reversing unit provided with an reversing roller; a sensor ; and a control unit configured to, if when the detecting unit detects a load equal to or more than a predetermined value, a conveyance amount of the printing medium after the sensor has detected the fore end is longer than a threshold value that is a distance from a position of the fore end at the time of being detected by the sensor to a position of the fore end at the time of exiting from the conveyance path of the reversing unit, perform control to continue conveyance.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: September 23, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ken Hoshino
  • Patent number: 8840104
    Abstract: A sheet conveyance apparatus for winding a sheet around a rotator, pulling the sheet wound around the rotator, and sending out the sheet includes a guiding unit that guides a sheet side end pulled from the rotator. The guiding unit forms a slack in the outer periphery of the sheet wound around the rotator, and guides the side end of the sheet sent from the rotator.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: September 23, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akira Fujikake
  • Patent number: 8824953
    Abstract: A device includes a winding rotary member having a cylindrical shape; a holder having a rotating member, which is provided in the vicinity of a cylindrical surface of the winding rotary member, capable of nipping and conveying the sheet; a first driving mechanism configured to rotate the winding rotary member; and a second driving mechanism configured to rotate the rotating member. The winding rotary member rotates with the sheet is nipped with the rotatable holder, whereby the sheet is wound around the winding rotary member.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: September 2, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kota Uchida, Manabu Kanazawa, Masahito Yoshida, Tetsuhiro Nitta, Takayuki Okamoto
  • Patent number: 8755735
    Abstract: An image forming apparatus in one embodiment includes: a first paper feeding control unit; a transfer unit that transfers a toner image onto a front surface or a back surface of the sheet; a second paper feeding control unit that reverses the sheet whose front surface has been transferred; a first decision unit that decides a transfer order on each surface by interleaf control; an execution control unit that controls the transfer on the back surface; and a second decision unit that decides whether a second sheet is to be fed for being transferred. The execution control unit makes the second sheet be fed from the sheet staking unit. The first paper feeding control unit controls such that the first sheet is apart from the second sheet by a predetermined interval distance or more, without changing a transfer order.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: June 17, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Akito Okutsu
  • Patent number: 8695972
    Abstract: A reversing apparatus within a media path comprises an input nip moving sheets of media in a first direction, and a reversing nip positioned to receive the sheets of media from the input nip. The reversing nip stops the sheets and moves the sheets in a second direction opposite the first direction. Also included is an output nip positioned to receive the sheets of media from the reversing nip, and an actuator connected to the reversing nip. The actuator moves the reversing nip relative to a position of the input nip and the output nip, based on a characteristic of the sheets of media.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 15, 2014
    Assignee: Xerox Corporation
    Inventors: Injae Choi, Joannes N. deJong, Steven R. Moore
  • Patent number: 8699937
    Abstract: An image processing device, comprising a supplying path; a re-carrying path; and a supply and separation mechanism to carry and separate a sheet-like medium, and wherein the supply and separation mechanism comprises: a sending roller; an independent roller and a retard roller, and the sending roller includes an arc part and a recess formed inside of a trace of an outer circumferential surface of the arc part, the independent roller is able to rotate independently of the sending roller, the retard roller, by stopping or rotating in an inverse direction of a supplying direction, causes a frictional resistance with respect to the sheet-like medium being sent out by the arc part to separate the sheet-like medium one by one, and the image processing device further comprises: a control unit configured to cause the retard roller to rotate in the supplying direction when re-supplying is executed.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 15, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takuya Yamaguchi, Yoshiteru Hattori
  • Patent number: 8641040
    Abstract: An image forming device includes an image formation path extending from an entrance end adjacent to a source of supply of media sheets, past an image forming station, to an exit end adjacent to a top collection site adapted to receive media sheets, a duplex path extending from an inlet end adjacent the top collection site to an outlet end adjacent a lower front opening in the device, a media sheet directing mechanism disposed between the exit end of the image formation path, top collection site and inlet end of the duplex path and selectively operable to deliver printed media sheets to the top collection site or the inlet end of the duplex path, and a deflector mechanism between the lower front opening and the outlet end of the duplex path and operable to divert printed media sheets from the duplex path through the lower front opening to exterior of the device.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: February 4, 2014
    Assignee: Lexmark International, Inc.
    Inventors: Daniel Paul Cahill, Chad Michael Piening, Louann Behymer Samuels, Brian Patrick Weaver, Curtis Duane Woodson
  • Patent number: 8616550
    Abstract: Disclosed is a sheet transport device including a main body, a first transport path through which a transported sheet passes, a second transport path through which the sheet that passes through the first transport path and is reversed in a transport direction thereof passes, having a curved portion on a downstream side thereof, a first guiding member that forms a first guiding surface of the second transport path, and a second guiding member that forms a second guiding surface opposite to the guiding surface, wherein the first guiding member is supported to be rotatable between a guiding posture where the sheet is guided and an open posture that rotates from the guiding posture to open the guiding surfaces, and an interval between the first guiding member and the second guiding member in the open posture is greater than that in the guiding posture.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: December 31, 2013
    Assignee: Fuji Xerox Corporation
    Inventor: Satoru Ishii
  • Patent number: 8613445
    Abstract: A drive transmission device includes a gear train and a movable gear locking device. The gear train transmits rotational drive to a drive target, and includes a first gear train forming a first transmission path for transmitting the drive to the target, a second gear train forming a second transmission path for transmitting the drive to the target as drive opposite in rotation direction to the drive transmitted by the first gear train, and a movable gear movable between a first drive transmission position whereat the movable gear forms a part of the first gear train to transmit the drive to the target and a second drive transmission position whereat the movable gear forms a part of the second gear train to transmit the drive to the target. The movable gear locking device locks the movable gear at an idle position.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: December 24, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshikane Nishii, Haruyuki Honda, Mitsutaka Nakamura, Hirofumi Horita
  • Patent number: 8611808
    Abstract: A conveyor including a conveyance element configured to rotate in a first rotary direction for sending in a first direction a sheet conveyed along a first path and in an opposite second rotary direction for sending the sheet to a second path including: a guide member for rotating between first and second positions; a first transmission element for transmitting a drive force to the conveyance element; a lever for rotating the guide member to at least one of the first and second positions; a second transmission element connected with the first transmission element to transmit the drive force to the lever; and a transmission controller for controlling transmission of the drive force from the second transmission element to the lever, wherein the transmission controller transmits the drive force from the second transmission element to the lever while the lever rotates the guide member.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: December 17, 2013
    Assignee: Kyocera Mita Corporation
    Inventor: Mitsuhiro Tahara
  • Patent number: 8594555
    Abstract: Embodiments described herein are directed to registering media in a duplex printing system. A first side of a sheet of media is registered in a first pass in response to detection of a first end of the sheet. A registration marker is deposited on the sheet proximate to a second end of the sheet in the first pass. The registration marker can include a marking material that is in the non-visible light range. A second side of the sheet is registered in a second pass in response to detection of the registration marker deposited on the sheet.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: November 26, 2013
    Assignee: Xerox Corporation
    Inventor: Douglas K. Herrmann
  • Patent number: 8559043
    Abstract: An image forming apparatus (50) at least includes a paper output tray (80), an actuator (16) and a photo sensor (15). The actuator (16) is supported in such a manner as to be swingable above a paper loading surface of the paper output tray (80). The actuator (16) includes a fullness detection section (164) and a rear edge curling detection section (162). The fullness detection section (164) is disposed at a tip portion of the actuator (16), being configured so as to contact the uppermost paper on the paper output tray (80). The rear edge curling detection section (162) is formed so as to extend from the fullness detection section (164) toward a direction that gets further away from the paper loading surface of the paper output tray (80) toward a direction generally parallel to the paper loading surface of the paper output tray (80) and opposite to a paper conveying direction.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: October 15, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki Kobayashi, Masaharu Kimura, Yasuaki Fukada, Masahiko Fujita
  • Patent number: 8517379
    Abstract: A 3-way letterbox media diverter directs and controls media in 2 forward directions and 1 reverse direction within a printer's paper path. The letterbox design enables actuation of the diverter from a first position to a second position just as the trail edge of a sheet passes a post fuser nip. Once the diverter reaches the second position, an invert nip now controlling the sheet is reversed to thereby invert the sheet. Thus, inversion of the sheet is accomplished in a small space envelope, time to reverse direction is reduced, process speed can be reduced and additional paper guides are eliminated.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: August 27, 2013
    Assignee: Xerox Corporation
    Inventors: Nicola M Bianco, Richard G Hubbard
  • Patent number: 8500124
    Abstract: A media actuated, media diverter mounted on a guide member positioned between the output of a simplex path and the entrance of a duplex path in an imaging device. The media diverter comprises a first plate, a biasing member for biasing the first plate in a first position where the first plate extends into the duplex path, and a second plate having a media guiding surface and a center of gravity biasing the second plate in a first position where the media guiding surface extends into the simplex path. First plate and second plate are movable in a slot through the guide member. With the first plate in its first position, the second plate remains movable between from its first and second positions. A media sheet fed into the duplex path moves first plate to its second position blocking movement of the second plate from its first position.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: August 6, 2013
    Assignee: Lexmark International, Inc.
    Inventor: Glenn Alan Reidhaar
  • Patent number: 8469359
    Abstract: A media actuated, media diverter mounted on a media guide positioned between the output of a simplex path and the entrance of a duplex path in an imaging device. The media diverter comprises a plate having a media guiding surface and a media contact surface along portions of the edge of the plate. The plate is received within a slot through the guide member such that in a first position the media contact surface extends into the duplex path and when in a second position the media guiding surface extends into the simplex path with the plate biasable in the first position. A media sheet fed into the duplex path contacts the media contact surface actuating the media diverter to move the plate to the second position directing a following media sheet in the simplex path to an exit of the imaging device.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: June 25, 2013
    Assignee: Lexmark International, Inc.
    Inventor: Glen Alan Reidhaar
  • Patent number: 8448941
    Abstract: An image forming apparatus including a pair of rollers that rotate, that selectively carries out forward direction transport and switchback transport, including a guide member provided at a downstream side from the rollers in the forward direction transport that moves to either a first position or a second position, and a control portion causing the guide member to move to the first position during the forward direction transport and causing the guide member to move to the second position during the switchback transport. The first position is a position in which the guide member is retracted from a path of the recording paper on a downstream side from the rollers in the forward direction transport. The second position is a position in which the recording paper sandwiched between the rollers can be received on the guide member.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 28, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takahisa Narikiyo
  • Patent number: 8437684
    Abstract: In case of both sides printing, the sheet S having an image formed on the obverse surface is conveyed to the first reversal section of the reversal device 50 disposed in a reversal path R3. In the first reversal section, the sheet S is conveyed to a U-turn reversal path by the reversal roller 56 with the first side section of the sheet S as the leading edge section. In the U-turn reversal path, a position of the first side surface section and a position of the second side surface section of the sheet S are exchanged and the sheet S is conveyed to the second reversal section. In the second reversal section, the sheet having been turned over is fed again to the register rollers 16 with a leading edge section at image forming on the obverse surface as the leading edge side. Whereby the same edge of the sheet S contacts with the register rollers 16 when the image is formed on the obverse side and when the image is formed on the reverse side.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: May 7, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Kyoichi Mizuno, Kunihiro Kawachi, Takahiro Hara
  • Patent number: 8430586
    Abstract: A disabled state in which sheets cannot be discharged at a discharge unit while printing is detected. Upon detecting the disabled state, printing is continued at a printing unit, and a sheet printed upon is evacuated to a storage unit without cutting into a plurality of cut sheets at a cutter unit. After the disabled state is resolved, the sheet which has been evacuated to the storage unit is sent to the cutter unit so as to be cut into the cut sheets, and discharged at the discharge unit.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 30, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taichi Watanabe
  • Patent number: 8414206
    Abstract: The invention describes a sheet conveying device having a feed tray for storing sheets, a first conveying path for conveying a first sheet in a first direction, a feed roller that feeds the sheets in the feed tray to the first conveying path, a second conveying path that connects the first conveying path and the feed tray, and conveys the first sheet in a direction opposite the first direction, and a multiple feed guide in the second conveying path, which has a guide for guiding the first sheet between the feed roller and the feed tray, and an overlying portion which overlies the feed tray on one side of the feed roller. The feed roller feeds the first sheet that was fed to the first conveying path, and was guided by the multiple feed guide, back to the first conveying path. A duplex printer incorporates this sheet conveying device.
    Type: Grant
    Filed: March 22, 2008
    Date of Patent: April 9, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tetsuo Asada
  • Patent number: 8417176
    Abstract: A disclosed image forming apparatus includes a main conveyance path configured to convey a recording medium from a paper feeding unit to a sheet discharge unit; a double-side reversing conveyance path configured to switch back a recording medium, one side of which has an image formed, so as to reverse the sides of the recording medium for double-sided image formation; a sheet resending conveyance path configured to resend the recording medium reversed in the double-side reversing conveyance path to the main conveyance path; and a double-side reversing open-space unit configured to provide a space for switching back the recording medium on the double-side reversing conveyance path. The double-side reversing open-space unit also serves as a temporary tray for storing misfed recording media and remaining recording media left inside the image forming apparatus when a jam occurs.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: April 9, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Yutaka Shoji, Junji Shirakawa, Takayuki Muneyasu
  • Patent number: 8393619
    Abstract: An image forming apparatus includes a body frame, an image forming unit and a transporting unit. The transporting unit includes a transporting tray, a side guide, a plate, a skew roller and an urging member. The transporting tray is configured to support the recording medium which is being transported. The side guide is configured to abut with an end of the recording medium in a width direction. The plate is facing the transporting tray. The skew roller is rotatably supported by the plate and is configured to skew the recording medium toward the side guide. The urging member is configured to urge a portion of the plate toward the transporting tray.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: March 12, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tsuyoshi Iwamoto
  • Patent number: 8382098
    Abstract: The present invention provides a recording medium turnover device and a recording medium processing apparatus using the same. The recording medium turnover device comprises: a passage assembly, configured to form a first passage (3), one end of which is connected with a recording medium inlet (1) and the other end of which is connected with a recording medium outlet (2); a turnover mechanism (4), which is located on one side of the passage assembly and comprises a first plate (41) being located below the outlet and extending away from the outlet and a second plate (42) swingably arranged between the outlet and the inlet and forming a recording medium containing space with the first plate; conveying rollers (411, 424), configured to convey the recording medium; and a guide plate (5), which is controlled to guide the recording medium to enter the first passage or the recording medium containing space of the turnover mechanism.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: February 26, 2013
    Assignee: Shangdong New Beiyang Information Technology Co., Ltd.
    Inventors: Ming Gao, Zhenxing Zhao, Jigang Zhang, Kai Liu
  • Patent number: 8382108
    Abstract: The present invention provides a recording medium overturning mechanism, comprising: a bracket (100); an entry (50) and an exit (60), arranged in the bracket (100); a first channel (10), communicating the entry (50) with the exit (60) to convey a recording medium which does not need to be overturned; a second channel (20), communicating with the entry (50) to convey a recording medium which needs to be overturned; a third channel (30), communicating with the exit (60) and the second channel (20) to convey the overturned recording medium, wherein the first channel (10), the second channel (20) and the third channel (30) are basically arranged in an inverted triangle and joined with each other; a channel switching mechanism (40), arranged on the bracket (100) and located at a joining area between the first channel (10) and the second channel (20); and an overturning roller (70), arranged on the bracket (100) and located at a joining area between the second channel (20) and the third channel (30), the overturnin
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: February 26, 2013
    Assignee: Shangdong New Beiyang Information Technology Co., Ltd.
    Inventors: Ming Gao, Zhenxing Zhao, Zhigang Xu, Qiangzi Cong, Tianxin Jiang
  • Patent number: 8358962
    Abstract: In an image recording apparatus according to an aspect of the invention, a recording medium is allowed to be conveyed on a conveying path. An inversion guide portion connects a first portion of the conveying path positioned downstream of a recording unit to a second portion of the conveying path positioned upstream of the recording unit. A path changeover unit is disposed at the first portion of the conveying path and swingable between a recording medium discharge position and a recording medium inversion position. When the path changeover unit is positioned at the recording medium discharge position, the forward rotation of the roller pair allows the recording medium to be sent to a discharge portion. When the path changeover unit is positioned at the recording medium inversion position, the rearward rotation of the roller pair allows the recording medium to be sent to the inversion guide portion.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: January 22, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Wataru Sugiyama, Takashi Ohama, Noriyuki Kawamata, Yuta Uchino
  • Patent number: 8320816
    Abstract: An improved architecture for use in a tightly integrated serial or parallel printer includes an inverter module that comprises a straight pass-through media path, as well as, an invert path. This auxiliary ‘pass-through’ media path of the inverter allows a sheet to enter the inverter ‘backwards’ through the traditional duplex exit path and continue straight out the inverter into the media path of a downstream engine to receive an image thereon.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: November 27, 2012
    Assignee: Xerox Corporation
    Inventors: Henry T Bober, James J Spence