Paper Path Access Patents (Class 399/124)
  • Patent number: 10452006
    Abstract: A fixing device includes a first unit including a first rotatable member, a second unit including a second rotatable member forming a nip with the first rotatable member, for fixing a toner image on a recording material, and a frame supporting the second unit. A guiding member is movable between a guiding position for guiding the recording material toward the nip, and a retracted position in which the guiding member is retracted from a space permitting demounting of the second unit from the frame. A cover member is openable to an open position for exposing the space, and is configured to move to a closed position, and an interrelating mechanism is configured to restore the guiding member, in the retracted position when the cover member is in the open position, to the guiding position in interrelation with movement of the cover member from the open position to the closed position.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 22, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Hashimoto, Shutaro Saito
  • Patent number: 10345734
    Abstract: A developing device and image forming apparatus are provided. The developing device includes a chassis; a developer carrying member; a thickness regulating member; a supply member; and a conveying member. In a state in which the developing device is attached to a main body an opening of the chassis faces upward; the thickness regulating member pressure-contacts the developer carrying member from below the developer carrying member; the conveying member is disposed below the developer carrying member; the supply member overlaps a portion of the conveying member in a horizontal direction; and a portion of the conveying member is disposed within a vertical projection plane between a pressure-contact position of the thickness regulating member to the developer carrying member, and a contact position of the supply member to the developer carrying member. The image forming apparatus includes a main body; a plurality of photosensitive members; and a plurality of developing devices.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: July 9, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 10295954
    Abstract: The image forming member has a frame member which forms the image forming member, the frame member including: a first support member, the first support member having a first member and a second member which is attached to the first member, a part of the second member being outside of the first member in a longitudinal direction of the first support member, a second plate member being fixed to a first plate member so that a length of the first support member in a longitudinal direction becomes a predetermined length; a second support member which is fastened to the first plate member by welding; and a third support member which is fastened to the second plate member by welding. Thereby, the image forming member can form images with high accuracy.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: May 21, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuhei Takei
  • Patent number: 10274859
    Abstract: The present invention provides an image forming apparatus including: a first moving member pressed and moved by an openable/closable member when the openable/closable member is opened, and switching a cartridge from a state where the cartridge is positioned in an image forming position to a state where the positioning is released; and a second moving member pressed and moved by the openable/closable member when the openable/closable member is opened, and moving the exposure member from an exposure position to a retracted position, wherein when the positioning of the cartridge is released, a reaction force applied from the first moving member to the openable/closable member reaches a first peak, when the exposure member is moved to the retracted position, a reaction force applied from the second moving member to the openable/closable member reaches a second peak, and timing of the first peak is different from timing of the second peak.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Tanaami, Keita Nakajima, Koji Miwa, Yuji Mitsui
  • Patent number: 10216121
    Abstract: A transfer unit includes a transfer roller, a guide, a holder and a lever. The transfer roller is configured to be pressed against an image carrier to form a transferring nip and to transfer a toner image from the image carrier to a sheet at the transferring nip. The guide is configured to guide the sheet to the transferring nip. The holder is configured to support a rotating shaft of the transfer roller in a rotatable manner and to support the guide. The lever is configured to support the holder in a turnable manner around the rotating shaft so as to press the transfer roller against the image carrier. The guide has an engaged part. The lever has an engagement part which is engaged with the engaged part. An engagement of the engagement part with the engaged part prevents a turning of the guide with respect to the lever.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: February 26, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yuki Uohashi
  • Patent number: 10167148
    Abstract: An image forming apparatus includes an image forming unit, a paper loading base on which manual-feed paper is loaded, a manual-feed paper conveying unit, and a dustproof cover which covers the paper loading base being in the overhang state. The paper loading base has a lower end rotatably supported on one outer surface portion of the device main body, and is opened from an upper end thereof and disposed at a predetermined oblique angle or in a horizontal overhang state such that an overhang side becomes an upper side in an oblique direction. The manual-feed paper conveying unit is conveys the manual-feed paper on the paper loading base onto a paper conveyance path one by one. The dustproof cover includes a base which engages with the paper loading base, and an opening-and-closing cover which is rotatably connected to the base and is opened upwardly on the overhang side.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 1, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Kuno, Hajime Nishida, Hideki Tobinaga, Jumpei Aoyama, Junpei Kamichi, Shun Kobayashi, Manabu Nonaka
  • Patent number: 10088797
    Abstract: An image forming apparatus includes a body housing with an inner space, and an image forming unit. The body housing includes a front cover, a top cover, and an interlocking mechanism. The interlocking mechanism lifts a front end of the top cover by a predetermined distance in association with an operation of opening the front cover from a state that the top cover and the front cover are closed. The interlocking mechanism holds a closed state of the top cover for a period until the front cover is closed from a state that the top cover is closed and the front cover is opened.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 2, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Chien Danh Nguyen
  • Patent number: 10048627
    Abstract: This image forming apparatus is equipped with: a conveyance cover which forms a reverse conveyance path; and a double-sided conveyance unit. The conveyance cover is turnably mounted to a body housing, and the double-sided conveyance unit is turnably mounted to the conveyance cover. A side surface of the body housing is equipped with a first abutment surface. The double-sided conveyance unit is equipped with a second abutment surface that abuts on the first abutment surface. The first abutment surface and the second abutment surface are the surfaces against which the double-sided conveyance unit and the surface abut first when the conveyance cover is closed, if in a state where the conveyance cover is opened and the double-sided conveyance unit is separated from the conveyance cover. The abutment presses the double-sided conveyance unit toward a position to cause the conveyance cover to house the double-sided conveyance unit.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: August 14, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Takehiro Sato, Yoshiaki Tashiro, Koki Morizono
  • Patent number: 9891562
    Abstract: An image forming apparatus includes: a fixing section configured to fix a toner image formed on a recording medium to the recording medium by conveying the recording medium while heating and pressing the recording medium at a fixing nip; a conveyance section configured to convey the recording medium toward the fixing nip while sandwiching the recording medium; and a control section configured to control the fixing section such that, at a timing after an image formation operation on the recording medium is stopped during the image formation operation, conveyance of the recording medium in the fixing section is stopped before the conveyance of the recording medium in the conveyance section is stopped, and that a timing of stopping the conveyance of the recording medium in the fixing section is changed in accordance with a type of the recording medium.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: February 13, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takashi Yamada, Mikihiro Yamakawa
  • Patent number: 9864324
    Abstract: According to an embodiment, an image forming apparatus includes a case having a door which can be opened and closed. A first rotating body, provided in the case, is exposed from the case when the door is opened. A second rotating body, provided in the case, is exposed from the case when the door is opened. The second rotating body forms a nip with the first rotating body. A spacer, detachably provided in the case, separates the first rotating body and the second rotating body when the spacer is attached. The second rotating body forms a nip with the first rotating body when the spacer is detached.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 9, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yasushi Suzuki
  • Patent number: 9811044
    Abstract: An image forming apparatus, including: a conveyance unit configured to convey a sheet on a conveyance path on which the sheet is conveyed; a first conveyance path opening member configured to open a first portion of the conveyance path; a second conveyance path opening member configured to open a second portion, which is located downstream the first portion, of the conveyance path; a sheet leading edge position detecting unit configured to detect a position of a leading edge of a stopped sheet on the conveyance path; and a determination unit configured to determine, based on a detection result of the sheet leading edge position detecting unit, one of not conveying the stopped sheet, causing the conveyance unit to convey the stopped sheet toward the first portion, and causing the conveyance unit to convey the stopped sheet toward the second portion.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 7, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidenori Matsumoto, Hiroyuki Eda, Yuichi Yamamoto, Naoto Watanabe
  • Patent number: 9791822
    Abstract: An image forming apparatus and a lock mechanism including a toggle mechanism capable of eliminating the problem of abnormal noise before and after a lock member passes a neutral point are provided. A lock mechanism includes a toggle spring that rotationally biases a toggle lever toward a standby position when the lever is between a standby position and a neutral point, and implements switching in a direction of the rotational biasing toward a locking position after the lever passes the neutral point. A projection and a locked portion of an engagement member are sandwiched by a toggle base and the toggle lever to maintain a contact state before and after the toggle lever passes the neutral point.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 17, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Abe, Takashi Yano
  • Patent number: 9720345
    Abstract: The present invention provides an image forming apparatus including: a first moving member pressed and moved by an openable/closable member when the openable/closable member is opened, and switching a cartridge from a state where the cartridge is positioned in an image forming position to a state where the positioning is released; and a second moving member pressed and moved by the openable/closable member when the openable/closable member is opened, and moving the exposure member from an exposure position to a retracted position, wherein when the positioning of the cartridge is released, a reaction force applied from the first moving member to the openable/closable member reaches a first peak, when the exposure member is moved to the retracted position, a reaction force applied from the second moving member to the openable/closable member reaches a second peak, and timing of the first peak is different from timing of the second peak.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: August 1, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Tanaami, Keita Nakajima, Koji Miwa, Yuji Mitsui
  • Patent number: 9650219
    Abstract: A paper conveying device includes a conveying guide, a bearing, a conveying-guide facing surface, and a separation restrictor. The conveying guide includes a conveyance surface for conveying paper and a pivot shaft and is swingable about the pivot shaft. The bearing includes a support surface facing at least an upper semiperimeter of the pivot shaft. The conveying-guide facing surface is provided to face an end of the conveying guide when the conveying guide swings. The end is opposite to the conveyance surface. The separation restrictor is provided to the conveying guide to restrict separation of the pivot shaft from the bearing at least in a given swing range of the conveying guide by contacting the conveying-guide facing surface.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: May 16, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Kohichi Utsunomiya, Kiho Sai, Shohei Saito, Yutaka Ikebuchi, Motoyoshi Yamano
  • Patent number: 9612574
    Abstract: An image forming apparatus includes an image forming section, an output section, a sheet transport unit, an air blowing device, and an air exhaust device. The image forming section forms a toner image. The sheet transport unit transports in a region above the image forming section a sheet onto which the toner image has been fixed. A first channel causes air to pass from a downstream side to an upstream side in a sheet transport direction, the air blowing device applies an airflow by using the first channel, a second channel causes the air to pass from the downstream side to the upstream side in the sheet transport direction, and the air exhaust device exhausts the air by using the second channel.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: April 4, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akira Harada, Mitsuaki Kuroda
  • Patent number: 9594336
    Abstract: An image forming apparatus having an improved structure to enable a user to conveniently operate the image forming apparatus at a front of the image forming apparatus, and a method thereof. The image forming apparatus includes a main body formed with a discharge port at a front portion, a printing unit mounted inside the main body and disposed adjacent to a front panel of the main body, a feeding unit to feed paper printed by the printing unit toward a rear panel of the main body, and a discharge reversal unit to reverse a moving direction of the paper fed by the feeding unit to feed the paper to the discharge port. A sensor to detect a moving position of the paper and a paper guide guiding movement of the paper is mounted between the feeding unit and the discharge reversal unit.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: March 14, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Sun Ahn, Jin Min Chung, Jin Soo Lee, Min Jae Kim
  • Patent number: 9561670
    Abstract: An image recording apparatus includes a rotational tray including a supporting surface for supporting a recording medium and a retaining mechanism. The rotational tray is attached to the housing to be rotatable so that an angle between the rotational tray and a side surface of the housing is changeable. The retaining mechanism is able to retain the rotational tray in one of: an open state in which a second discharging slot formed in the side surface of the housing is opened and the recording medium discharged from the second discharging slot is supportable by the supporting surface; a closed state in which the second discharging slot is closed by the supporting surface; and an intermediate state between the open state and the closed state, in which the recording medium discharged from the second discharging slot can be guided in a direction along the supporting surface.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 7, 2017
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kenichi Hirata
  • Patent number: 9479660
    Abstract: An image recording apparatus includes a printing device, an image reading device, two hinge members, and a feed tray. The printing device includes a printing unit configured to record an image on a sheet. The image reading device is disposed above the printing device and includes a scanner configured to read an image recorded on a sheet. The two hinge members are configured to connect the image reading device and the printing device such that the image reading device is pivotable with respect to the printing device. The feed tray, on which a sheet is to be placed, is disposed between the two hinge members. The printing device includes a feeder configured to feed the sheet placed on the feed tray into the printing unit.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: October 25, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Osakabe, Yuta Uchino
  • Patent number: 9423766
    Abstract: The present invention provides an image forming apparatus including: a first moving member pressed and moved by an openable/closable member when the openable/closable member is opened, and switching a cartridge from a state where the cartridge is positioned in an image forming position to a state where the positioning is released; and a second moving member pressed and moved by the openable/closable member when the openable/closable member is opened, and moving the exposure member from an exposure position to a retracted position, wherein when the positioning of the cartridge is released, a reaction force applied from the first moving member to the openable/closable member reaches a first peak, when the exposure member is moved to the retracted position, a reaction force applied from the second moving member to the openable/closable member reaches a second peak, and timing of the first peak is different from timing of the second peak.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: August 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Tanaami, Keita Nakajima, Koji Miwa, Yuji Mitsui
  • Patent number: 9411275
    Abstract: An image forming apparatus includes an image forming device configured to form, in a first position, a toner image on a sheet using toner containing a parting material; a fixing device configured to fix the toner image formed on the sheet by the image forming device in a second position, by heat and pressure; a fan configured to flow air along an air flow path between the image forming device and the fixing device; and a partition configured and positioned to substantially separate between the air flow path and a sheet feeding path from the first position to the second position.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 9, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Sugiyama, Koji Nojima, Takanori Sakurai
  • Patent number: 9400473
    Abstract: A media supply device includes a tray feeding printable media into a printing device. The tray has a first section sized for a first size of printable media and a second section sized for a second size of printable media. The first section is within the second section. The tray has a base with a first end and a second end. A first endwall is perpendicularly connected to the first end of the base. A second endwall is perpendicularly connected to the second end of the base. Sidewalls having a top edge are connected to edges of the base between the first endwall and the second endwall. The top edge of the sidewalls is a first height above the base in the first section and a second height above the base in the second section. The first and second heights are different.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: July 26, 2016
    Assignee: Xerox Corporation
    Inventor: Duncan I. Stevenson
  • Patent number: 9377749
    Abstract: The image forming apparatus includes a first guide that defines a conveyance path and rotates about a fulcrum with the opening of the cover, the fulcrum being provided at a lower portion of the first guide, the conveyance path extending upward and downward and through which the sheet is conveyed; and a second guide that defines the conveyance path in combination with the first guide, the second guide being rotatable with the cover being open. The second guide moves in a direction away from the fulcrum with the opening of the cover.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 28, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuhiro Saito
  • Patent number: 9352918
    Abstract: An image recording apparatus includes: a first tray on which a sheet is to be placed, a case having a first conveyance path extending from the first tray, a feed roller to feed the sheet from the first tray, a conveyance roller to convey the sheet through the first conveyance path, a recording unit to record an image on the sheet conveyed through the first conveyance path, a first guide member pivotable between a first position defining an outside of a curved portion of the first conveyance path and a second position opening the curved portion of the first conveyance path, a second guide member defining an inside of the curved portion of the first conveyance path, and a third guide member pivotably provided at the side of a pivot front-end of the first guide member to pivot between a third position and a fourth position.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 31, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hirotaka Aoki
  • Patent number: 9348284
    Abstract: A sheet conveyor, which is incorporated in an image forming apparatus, includes a first conveyor to convey a sheet via a first sheet conveying path and move in a direction intersecting a sheet thickness direction, a second conveyor to convey the sheet via a second sheet conveying path and include a third conveyor and a fourth conveyor bringing either one close to and away from the other via the second sheet conveying path in the sheet thickness direction, a first attaching part provided to the first conveyor to attach the first conveyor to the sheet conveyor, and a state changer to change a state of one of the first attaching part to a movement allowed state and the second conveyor to a sheet releasing state in conjunction with a releasing action of the other of the first attaching part and the second conveyor.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 24, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Watanabe, Kenji Ishii, Yuji Karikusa, Junji Shirakawa
  • Patent number: 9342023
    Abstract: An image forming apparatus includes a protruding tray part. The protruding tray part is provided on the upper surface portion of a body casing part, extends in a paper discharge direction and has a convex shape which becomes convex at an upper side, and supports a part of a lower surface of a paper, which is discharged from a paper discharge port, from below, thereby forming a space between end portions of the paper and the upper surface portion of the body casing part. The paper conveying device is formed at a lower surface thereof with a guide recessed part. The guide recessed part has a concave shape corresponding to the convex shape of the protruding tray part, and is engaged with the convex shape to guide the paper conveying device when the paper conveying device is mounted in the in-body paper discharge space.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: May 17, 2016
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Shuji Osaki, Hiroshi Inui
  • Patent number: 9335678
    Abstract: An image forming apparatus includes a discharge unit, fixing unit, movable guide, cover, and retaining part. The discharge unit discharges a sheet out of a main body. The fixing unit thermally fixes developer image deposited on the sheet to provide an image-fixed sheet. The movable guide is movable between a first position and second position. The movable guide guides one surface of the sheet in the first position. The movable guide exposes a conveying path in the second position. The cover is movable between an open position where the movable guide is exposed and a closed position where the movable guide is covered. The movable guide is in the first position while the cover moves from the closed position to the open position. The retaining part is configured to retain the movable guide in the second position after the movable guide moves from the first position to the second position.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: May 10, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsushi Ozawa, Noboru Suzuki
  • Patent number: 9329565
    Abstract: An image forming apparatus is configured to include an apparatus main body, further including an internal sheet discharge portion for ejection of a sheet having an image formed thereon; and a relay conveying unit, positioned in the internal sheet discharge portion, and configured to convey the sheet to a post-processing device. The relay conveying unit has: a body portion; a cover member positioned on a side surface of the body portion; a detection switch; and a hook positioned on the cover member. The body portion and cover member form a sheet conveying path, the cover member being turnable in vertical directions into opening and closing states, to open and form the sheet conveying path, respectively, as detected by the detection switch. The hook prevents the cover member from being turned from the closing state and switches the detection switch into an on state.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: May 3, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Shuji Osaki
  • Patent number: 9272856
    Abstract: An image forming apparatus includes an apparatus main body, an image forming unit, a tray unit and an attaching portion. The tray unit includes a pivot portion. The sheet is placed on the tray unit in an open state. The tray unit is capable of making a sliding movement in an axial direction of the pivot portion in a closed state. The tray unit is attached to the attaching portion in the closed state. The tray unit includes a pair of hooks that project from opposite end parts in the axial direction and each includes a projection. The attaching portion includes a pair of openings and a pair of engaging portions. The projections are inserted into the opening. Engaged positions of the projections with the engaging portions are variable according to the sliding movement in the closed state of the tray unit.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 1, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yoshimasa Okura
  • Patent number: 9268287
    Abstract: A sheet feed device of an image forming apparatus includes an outside cover and an inside cover. The outside cover opens and closes a side of a housing. The inside cover is disposed more inside of the housing than the outside cover. Each of the covers is rotatably supported with a lower end thereof as a fulcrum by the housing. A first locking piece is provided in the upper end of the outside cover, and a second locking piece is disposed below the first locking piece. A coupled portion configured to be selectively coupled with the first locking piece or the second locking piece is provided in the inside cover. During the process where the outside cover is rotationally moved in the opening direction, the coupled portion is once released from the coupling with the first locking piece, and then is coupled with the second locking piece.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: February 23, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kei Maruyama, Yoshiyuki Asakawa
  • Patent number: 9152123
    Abstract: A jam removing device, an apparatus including a jam removing device, and a method of removing a jam are provided. The jam removing device includes a first door member installed on an in/out path of a tray mounted with a developing unit and is opened or closed with respect to an apparatus body, a second door member installed in the apparatus body in an opposite direction to the first door member and is opened or closed with respect to the apparatus body, a guide unit including a first guide that guides insertion/withdrawal of the tray with respect to the apparatus body and a second guide that guides the first guide so that the developing unit approaches or separates from a transfer unit, a first link unit connecting the first door member and the first guide, and a second link unit connecting the second door member and the first guide.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong-yeon Park, Byung-sun Ahn
  • Patent number: 9134666
    Abstract: A fixing device includes a pair of detachable rollers and applies heat and pressure to a sheet nipped between the rollers to fix a toner image formed on the sheet to the sheet. The fixing device includes a biasing part which gives a biasing force to bring one of the rollers into tight contact with the other, an adjusting part which adjusts the biasing force of the biasing part, and a guide indication part providing a guide for an amount of adjustment to be made by the adjusting part in accordance with the hardness of the surface layer of a roller of the rollers.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: September 15, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Masami Maruko
  • Patent number: 9133657
    Abstract: A cover opening-closing mechanism is provided, which is configured to allow a cover to rotate around a rotational axis with respect to a housing, the cover opening-closing mechanism including a connecting member configured to connect the housing with the cover, a first contact portion disposed at the cover, and a second contact portion disposed at the housing, the second contact portion configured to contact the first contact portion of the cover so as to hold the cover in a hold position relative to the housing.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 15, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Muneaki Takahata
  • Patent number: 9090103
    Abstract: A recording apparatus includes a recording unit, a conveying unit disposed below the recording unit, a return path unit configured to return the recording medium from the upstream side of the recording unit to the conveying unit, and a casing. The return path unit is disposed below the conveying unit and includes a horizontal conveying path including an upper portion and a lower portion. The side walls of the casing include a drawing port through which the conveying unit and a least the upper portion of the horizontal conveying path are drawn out, and an opening facing in a direction perpendicular to the drawing direction thereof. The inner edge of the lower end of the opening is positioned the same or lower in height than the uppermost portion of the horizontal conveying path in the return path unit.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 28, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuji Sakano
  • Patent number: 9042780
    Abstract: An image forming apparatus includes a unit housed in an apparatus body and configured to contribute to image formation, a driving source disposed in the apparatus body and configured to apply a driving force to the unit, an opening formed in the apparatus body, a door configured to form a conveyance path for conveying a recording material, and movable between a first position, where the opening is closed, and a second position, where the opening is opened, and a transmission unit configured to transmit the driving force from the driving source to the unit when the door is at the first position and to urge the door in a door closing direction.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 26, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akifusa Ando, Yuuichi Tanabe
  • Patent number: 9031462
    Abstract: An apparatus includes a device that includes a driving source, an opening and closing door that is opened and closed by rotational operation about a rotating shaft with respect to a body of the apparatus, and an elastic part that is provided at the body of the apparatus, that is elastically deformed by contact with a first portion of a part of the opening and closing door on the side of the rotating shaft and blocks a gap between the first portion and the body of the apparatus when the opening and closing door is closed, and that is elastically deformed by contact with a second portion of the opening and closing door that is different from the first portion when the opening and closing door is opened.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: May 12, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masahiro Mori, Shuichi Yamamura, Kokichi Kasai
  • Patent number: 9027924
    Abstract: Provided is an information recording device in which jam processing operation can be easily performed with simple operation when a recording medium such as a card is jammed in a conveyance passage. A card storing section and a medium conveyance passage for conveying a card to an image forming section are arranged in a housing at upper and lower sides and a passage open-close member for removing a card jammed at the image forming section is arranged therebetween. Then, electronic information recording means is incorporated in the passage open-close member and a medium conveyance path which conveys a card toward the electronic information recording means is arranged on a medium introduction passage for feeding a card from the card storing section to the medium conveyance passage. According to the above, a card jammed at the image forming section or the information recording section can be easily removed to the outside of the device by opening the card storing section.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 12, 2015
    Assignees: Toppan Printing Co., Ltd., Nisca Corporation
    Inventors: Naoki Yokoyama, Akira Takei, Tatsuya Asakawa, Hiromitsu Tamura, Yuichi Aihara
  • Patent number: 9016690
    Abstract: A sheet conveying device includes an apparatus main body with a wall portion, a sheet conveyance path, a conveyor roller pair, an opening/closing unit and a cleaning unit. The conveyor roller pair includes a first roller and a second roller. The opening/closing unit is openable and closable relative to the apparatus main body. The opening/closing unit defines a part of the sheet conveyance path and brings the first roller into contact with the second roller in a closed state. The opening/closing unit separates the first roller from the second roller in an open state. The cleaning unit includes a cleaning member and a support frame. The cleaning member cleans a surface of the second roller. The support frame supports the cleaning member and moves the cleaning member toward and away from the surface of the second roller in association with the movements of the opening/closing unit.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 28, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yasuyuki Fukunaga
  • Patent number: 9008549
    Abstract: An image forming apparatus includes a structure having an image formation device to form an image, a cover pivotally attached to the structure around a rotary shaft, and an opening angle restricting device to restrict an opening angle of the cover regarding the structure. The opening angle restricting device includes a pivotable cover rotation restriction member coaxially arranged with the rotary shaft to contact a downstream side of the pivotable cover in a cover opening direction at its first end to restrict the rotation of the pivotable cover in the opening direction.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: April 14, 2015
    Assignee: Ricoh Company, Ltd.
    Inventor: Takashi Fujimoto
  • Patent number: 8998205
    Abstract: A recording apparatus includes a apparatus main body, and a unit body that forms a medium transportation path, and is configured to be attachable and detachable with respect to the apparatus main body. The unit body includes a feeding roller that transports a medium, and a driven transportation unit that transmits the drive force of the drive transportation unit to the feeding roller. The unit body is displaceable between a first position at which the driven transmission unit is connected to the drive transmission unit and a second position at which the driven transmission unit is separated from the drive transmission unit. When a user pulls out the medium, the unit body retained at the first position moves from the first position to the second position.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: April 7, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Akinobu Nakahata, Kazuyoshi Ohashi, Takeshi Aoki
  • Patent number: 8995879
    Abstract: An image recording apparatus includes a first pullout unit, a second pullout unit, and a first lock mechanism. The first unit is movable along a first axis between a first retracted position where the first unit is fully retracted in the apparatus, and a first exposed position where at least one side surface thereof is fully exposed to the front of the apparatus. The second unit is movable along a second axis, which is perpendicular to the first axis, between a second retracted position where the second unit is fully retracted in the first unit, and a second exposed position where the second unit is exposed to a side of the side surface of the first unit. The first lock mechanism prevents movement of the second unit from the second retracted position to the second exposed position when the first unit is not in the first exposed position.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: March 31, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihiko Seike, Toshiki Takiguchi, Junya Masuda, Hiroyuki Murai
  • Patent number: 8991811
    Abstract: An image recording device having a first housing, a second housing, and a support tray adjacent to a first side of the second housing and a first side of the first housing. The support tray is pivotably connected to the first housing and is movable between a third state and a fourth state and a retainer portion connecting the support tray to the second housing in a first state and a second state.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: March 31, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shota Iljima
  • Publication number: 20150063858
    Abstract: Disclosed is an image forming apparatus including: a printing paper transport path in which printing paper is transported; a secondary transfer unit and a fixing section both disposed on the printing paper transport path; an open/close cover that, when opened, exposes the printing paper transport path in a main body of the apparatus; a pressure roller, disposed in the fixing section, that presses the printing paper on a side thereof facing the open/close cover against the printing paper transport path; and cooling fans that cool down the pressure roller, wherein the secondary transfer unit and the cooling fans are attached to the open/close cover and disposed at such positions that the secondary transfer unit and the cooling fans move following overlapping paths when the open/close cover is opened/closed.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 5, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hirokazu Nakamura, Kimihide Tsukamoto, Masaki Amemiya
  • Patent number: 8967620
    Abstract: A sheet transport device includes a device body that transports a sheet; a pair of transport rollers that come into contact with each other and transport the sheet toward a downstream side in a transport direction of the sheet; a transport member that guides and transports the sheet toward the transport rollers; and an open and close member that opens and closes a side surface of the device body. One of the transport rollers is provided at the device body and the other transport roller is provided at the transport member, and the transport member is rotatable around an axis parallel to the transport rollers. When the open and close member moves to an open position at which the side surface is open, the open and close member rotates around the axis and the contact between the transport rollers is allowed to be released.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: March 3, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenichi Ishikura, Naoya Kamigaito
  • Patent number: 8971762
    Abstract: An image forming apparatus includes a bearing member provided to a secondary transfer unit, with the bearing member being configured to engage with a main body unit of the apparatus, a hooking-receiving member rotatably provided in the main body unit of the apparatus and opposed to the bearing member, and a rotation regulation member provided to the main body unit of the apparatus to regulate rotation of the hooking-receiving member. The hooking-receiving member contacts the rotation regulation member when the secondary transfer unit is closed with respect to the main body unit of the apparatus and-rotates in a direction away from the rotation regulation member when the secondary transfer unit is opened with respect to the main body unit of the apparatus.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuhiro Fukase
  • Patent number: 8965246
    Abstract: An image forming apparatus includes a covering/not-covering member that is supported by an apparatus body so as to be movable between a not-covered position and a covered position; a transporting member that is mountable on and removable from the covering/not-covering member; a positioning member provided at the apparatus body; and an engaging member provided at the covering/not-covering member, the engaging member moving as the transporting member is moved relative to the covering/not-covering member by the positioning member, to engage an engage member and hold the covering/not-covering member at the covered position.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 24, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Ao, Masahito Shikata
  • Patent number: 8965266
    Abstract: Automatic document feeder includes a transport path member having a transport path surface configuring a transport path in a device body, a latching member that is mounted on a rotating shaft provided in the other end side, is urged in a first rotation direction latched to a latched portion, and holds the transport path member in closed transport path, and an operating member that is rotated up to an operating position by own weight thereof or urging force in a second rotation direction when the device body moves to an exposed position of the transport path member, and is mounted with allowance so that the latching member is rotated in the second rotation direction according to a further rotating operation in the second rotation direction from the operating position and the latching member is detached from the latched portion.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: February 24, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Yamazaki, Hyundeok Ha, Senggyu Cho
  • Patent number: 8953983
    Abstract: Disclosed is an image forming apparatus including an image forming apparatus member, a toner image forming unit including a housing that accommodates at least one of a toner image retainer to retain a toner image and a toner retainer to supply a toner to the toner image retainer, and a recording medium transport unit including a transport belt, having an endless shape, that is openably and closably mounted to the image forming apparatus member and transports a recording medium with being wound between a pair of support rollers provided along a transport direction of the recording medium, and a regulation member that faces the transport belt to regulate a posture of the recording medium, wherein when the recording medium transport unit is closed with respect to the image forming apparatus member, the regulation member is positioned to come into contact with the housing.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: February 10, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuaki Iikura, Yasuhiro Warita, Satoshi Miyawaki
  • Patent number: 8942575
    Abstract: The image forming apparatus includes a cover member, a cover open/closed detection sensor, a driven unit, a drive detection sensor, and an attitude determination unit. The cover open/closed detection sensor outputs a closed signal corresponding to a closed attitude and an open signal corresponding to an open attitude. The drive detection sensor outputs a state signal corresponding to the drive state of the driven unit. The attitude determination unit determines whether the cover member is in an open attitude or is in a closed attitude based on a closed signal and a state signal input after the open signal.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: January 27, 2015
    Assignee: Kyocera Document Solutions, Inc.
    Inventor: Masatomo Matsuda
  • Patent number: 8923746
    Abstract: A sheet feeding mechanism incorporatable in an image forming apparatus includes a cover unit rotatably attached to one side of a main body of an image forming apparatus to cover a part of a sheet conveyance path, a first feeding member located in a main body of the apparatus, a second feeding member located in the cover unit in a displaceable manner and facing the first feeding member when the cover unit is closed and sandwiching and conveying a recording medium along the sheet conveyance path with the first feeding member, and a guide member disposed in the main body to guide the second feeding member. The guide member guides the second feeding member to move in a first direction that approaches the first feeding member when closing the cover unit and in a second direction that separates from the first feeding member when opening the cover unit.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 30, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsutaka Nakamura, Haruyuki Honda, Toshikane Nishii, Hirofumi Horita, Ippei Kimura, Masanori Namba
  • Publication number: 20140341611
    Abstract: An image forming apparatus (100) includes: a side cover (201) mounted on a side part of an apparatus body to be freely opened and closed; a fixing portion (80) mounted inside the apparatus body and close to the side cover (201) and fixing an image to a paper sheet P fed in a direction from a bottom to a top of the apparatus body; and a document platen (130) mounted at an upper part of the apparatus body and supporting a document placed thereon. The document platen (130) includes a cutout portion (130K) formed in a manner such that a portion opposed to an upper part of the side cover (201) is cut out inside; and the fixing portion (80) includes a nip (85) that, when the side cover (201) is opened, can be viewed obliquely from a lateral upper side of the apparatus body through the cutout portion (130K).
    Type: Application
    Filed: July 27, 2012
    Publication date: November 20, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masaya Asakawa, Yasuhiro Suto