Having Subunit Separation Patents (Class 399/113)
  • Patent number: 10942486
    Abstract: A toner cartridge according to one example includes first and second alignment guides that extend outward from a first side and a second side of the toner cartridge, respectively, for positioning the toner cartridge. The first and second alignment guides define a pivot axis about which the toner cartridge is pivotable relative to an imaging unit when the toner cartridge is installed on the imaging unit. An engagement member is positioned on a rear of the toner cartridge for receiving a bias force for biasing the toner cartridge about the pivot axis when the toner cartridge is installed on the imaging unit. The engagement member is positioned next to the bottom of the housing. The engagement member includes an angled contact surface that faces upward and rearward for contacting a corresponding hold-down on the imaging unit when the toner cartridge is installed on the imaging unit.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: March 9, 2021
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Brian Scott Carpenter, Gregory Alan Cavill, James Richard Leemhuis, Jeffrey Lawrence Tonges
  • Patent number: 10921732
    Abstract: In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: February 16, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Naoya Kamimura
  • Patent number: 10901365
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: January 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10875292
    Abstract: An example printing system for printing liquid ink has a developer device to transfer ink to an image plate of the printing system. The developer device has an ink inlet to receive ink from an ink reservoir of the printing system; a developer roller to transfer ink to the image plate, a motor to rotate the developer roller, and an ink sensor to detect arrival of ink at the developer device. The printing system is configured to start the motor in response to the ink sensor detecting arrival of ink at the developer device.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: December 29, 2020
    Assignee: HP INDIGO B.V.
    Inventors: Lavi Cohen, Asaf Shoshani
  • Patent number: 10866560
    Abstract: An image forming apparatus includes a main body housing, a drawer, a drum cartridge, an exposure device, developing cartridge, a transfer roller, and a fixing device. The drum cartridge includes a photosensitive drum and is attachable to and detachable from a first supporting position on the drawer. The developing cartridge is attachable to and detachable from a second supporting position on the drawer and includes a developing roller. The drawer includes a first guide. The drum cartridge includes a second guide. In a state where the drum cartridge is attached to the first supporting position on the drawer, the first guide of the drawer and the second guide of the drum cartridge forms a developing cartridge guide configured to guide the developing cartridge toward the second supporting position on the drawer.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: December 15, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shougo Sato
  • Patent number: 10845731
    Abstract: A developer cartridge includes a developing roller, a housing, an electrode, a gear, and a hook. The developing roller is rotatable about an axis extending in a first direction. The housing extends in the first direction and is configured to store toner therein. The electrode is positioned at an outer surface of the housing in the first direction and extends in the first direction. The gear is rotatable about the electrode. The hook is positioned opposite to the developing roller relative to the gear in a second direction and is movable between a first position and a second position.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: November 24, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 10816929
    Abstract: An image forming apparatus including a drawer and a main body. The drawer includes a frame holding a photosensitive drum rotatable about an axis extending in a first direction and a drawer-side connector including a drawer-side electrical contact part. The main body includes: a housing including a main body-side electrical contact part; a shaft extending in the first direction; a unit removably insertable to the housing; and a connection member. One end in a third direction intersecting with the first and second directions of the unit is fitted to the housing and the other end is supported to the shaft via the connection member. The main body-side connector is supported to the unit. The drawer-side electrical contact part and the main body-side electrical contact part are interconnected when the drawer is accommodated.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: October 27, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shota Shinoya
  • Patent number: 10809661
    Abstract: A toner cartridge according to one example includes first and second alignment guides that extend outward from a first side and a second side of the toner cartridge, respectively, for positioning the toner cartridge. The first and second alignment guides define a pivot axis about which the toner cartridge is pivotable relative to an imaging unit when the toner cartridge is installed on the imaging unit. An engagement member is positioned on a rear of the toner cartridge for receiving a bias force for biasing the toner cartridge about the pivot axis when the toner cartridge is installed on the imaging unit. The engagement member is positioned next to the bottom of the housing. The engagement member includes an angled contact surface that faces upward and rearward for contacting a corresponding hold-down on the imaging unit when the toner cartridge is installed on the imaging unit.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 20, 2020
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Brian Scott Carpenter, Gregory Alan Cavill, James Richard Leemhuis, Jeffrey Lawrence Tonges
  • Patent number: 10802437
    Abstract: A static eliminating device includes a light guide body formed in a bar shape and attached to a drum frame, and a light source. The light source is arranged at one end side in a longitudinal direction of the light guide body. The light guide body includes a plurality of reflection parts and an attachment part. The plurality of reflection parts is arranged in parallel in the longitudinal direction within a range at the other end side from a start position spaced a predetermined distance from one end in the longitudinal direction. The attachment part is arranged between one end in the longitudinal direction and the start position to act as a start point of thermal deformation in the longitudinal direction. The attachment part is composed of two protrusions to interpose an edge of a positioning hole provided in the drum frame at one end side in the longitudinal direction.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: October 13, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hironobu Oi, Teruhiko Nagashima
  • Patent number: 10795310
    Abstract: Provided is a cartridge that includes a photosensitive member unit, a development unit that moves with respect to the photosensitive member unit so as to be movable between a first position and a second position, a regulating member that is movable between a regulating position at which the regulating member contacts the photosensitive member unit and the development unit to regulate movement of the development unit from the first position to the second position and a nonregulating position at which movement of the development unit is not regulated, and an urging member that urges the regulating member to move the regulating member from the nonregulating position to the regulating position.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 6, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Munetsugu, Goshi Ozaki, Yosuke Kashiide
  • Patent number: 10782630
    Abstract: An image forming apparatus employing an electrophotographic image forming method includes a casing having a front wall to which an opening is formed and a rear wall facing the front wall, a photosensitive drum located close to the front wall, a support member configured to support the photosensitive drum. The support member is slidably movable between an accommodated position a drawn position at which the photosensitive drum is drawn out of the casing through the opening. The image forming apparatus further includes a sheet tray, a feeding roller configured to feed the plurality of sheets supported by the sheet tray, a first conveying guide arranged between the support member and the sheet tray to face the support member, and a second conveying guide formed to the support member at a position facing the first conveying guide to guide the sheet inserted through the opening.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: September 22, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shougo Sato, Yasutada Kato, Yasuo Fukamachi, Kazuna Taguchi
  • Patent number: 10719051
    Abstract: A developing cartridge includes: a casing; a developing roller; a shaft extending in a first direction; a first inclined surface; a second inclined surface; an elastic member; and a first protrusion. The shaft is movable in the first direction relative to the casing and the developing roller, and is movable in the second direction together with the same. The first inclined surface is positioned at one end portion of the shaft, while the second inclined surface is positioned at another end portion of the shaft. The first and second inclined surfaces are inclined relative to the first direction. The first protrusion is movable in the first direction together with the second inclined surface. The shaft is movable from a first position to a second position when the second inclined surface receives a pressing force directed in a direction from the another end portion to the one end portion.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 21, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuwen Wang, Junichi Hashimoto
  • Patent number: 10705480
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: July 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10649401
    Abstract: A toner cartridge according to one embodiment includes a housing having first and second alignment guides that extend outward from a first side and a second side of the housing, respectively, and that run along a front-to-rear dimension of the housing. Third and fourth alignment guides extend outward from the first side of the housing. The third alignment guide is spaced toward the front of the housing from the fourth alignment guide. Bottom surfaces of the third and fourth alignment guides are unobstructed to sit on top of a corresponding guide surface in an image forming device to control a vertical position of the toner cartridge in the image forming device. The bottom surfaces of the third and fourth alignment guides are aligned with each other in a vertical dimension of the housing and are positioned higher than the first and second alignment guides.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: May 12, 2020
    Assignee: Lexmark International, Inc.
    Inventors: Jason Paul Hale, Kyle Bradley Martin, Jeremy Keith Payne, Matthew Lee Rogers, Edward Lynn Triplett
  • Patent number: 10520885
    Abstract: A process unit includes a drum frame supporting a photoconductor drum and a development frame supporting a development roller. The development cartridge is swingably supported by the drum frame at a coupling joint provided at a first side of the development frame and a support portion provided at a second side of the development frame. A center of rotation of the development roller is located in a position shifted from a line segment connecting a center of rotation of the coupling joint and a center of rotation of the photoconductor drum to an upstream side with respect to a direction of rotation of the coupling joint as viewed in an axial direction of the development roller, such that the development roller is pressed against the photoconductor drum by the action of the rotatory force received by the coupling joint.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 31, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masatoshi Shiraki, Hiroki Mori
  • Patent number: 10514656
    Abstract: A drum cartridge includes: a drum frame to which a developing cartridge including a storage medium having an electrical contact surface is detachably attachable; a photosensitive drum; a transfer roller; and a conveying roller. The drum is rotatable about a first axis extending in a first direction and positioned at one end portion of the frame in a second direction. The transfer roller is rotatable about a second axis extending in the first direction and in contact with the drum. The conveying roller is rotatable about a third axis extending in the first direction and separated from the transfer roller in the second direction. A first opening of the frame is positioned between the transfer roller and the conveying roller in the second direction. The electrical contact surface is exposed to an outside through the first opening in a case where the developing cartridge is attached to the frame.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 24, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi Shimizu, Koji Abe
  • Patent number: 10514655
    Abstract: A drum cartridge includes: a drum frame to which a developing cartridge including a storage medium having an electrical contact surface is detachably attachable; a photosensitive drum; a transfer roller; and a conveying roller. The drum is rotatable about a first axis extending in a first direction and positioned at one end portion of the frame in a second direction. The transfer roller is rotatable about a second axis extending in the first direction and in contact with the drum. The conveying roller is rotatable about a third axis extending in the first direction and separated from the transfer roller in the second direction. A first opening of the frame is positioned between the transfer roller and the conveying roller in the second direction. The electrical contact surface is exposed to an outside through the first opening in a case where the developing cartridge is attached to the frame.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 24, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi Shimizu, Koji Abe
  • Patent number: 10509360
    Abstract: An image forming apparatus includes a main assembly and a cartridge including at least an image bearing member. The apparatus further includes a tray drawable from the main assembly, wherein the cartridge is mountable to and dismountable from the tray in one direction and an opposite direction, respectively; and a light emission unit provided in the tray and including a plurality of light emission elements arranged in an axial direction of the image bearing member to form a latent image on the image bearing member. The cartridge is capable of being inserted into the tray by moving it in the one direction, in response to which the light emission unit is moved in a direction crossing with the one direction to outside of a movement range of insertion of the cartridge.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: December 17, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunsuke Hijikata, Yuichiro Inaba, Toshiyuki Watanabe
  • Patent number: 10488813
    Abstract: A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 26, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuwen Wang, Junichi Hashimoto, Isao Kishi, Kazuaki Ooka
  • Patent number: 10466646
    Abstract: A photosensitive drum is rotatable about a first axis extending in a particular direction. A frame rotatably supports the photosensitive drum. A developing roller is rotatable according to driving force about a second axis extending in the particular direction. A surface of the developing roller contacts a surface of the photosensitive drum through toner. A resistance generating member generates a resistance torque TQ1 serving as resistance between the frame and photosensitive drum in a case where the photosensitive drum rotates relative to the frame. In a case where the developing roller rotates according to the driving force in a state where the surface of the developing roller contacts the surface of the photosensitive drum through toner, the resistance torque TQ1 is smaller than a torque TQ2 that causes the photosensitive drum to rotate due to friction between the surface of the developing roller and the surface of the photosensitive drum.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 5, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tomoya Ichikawa, Takashi Shimizu, Masaaki Furukawa, Naoya Kamimura, Takashi Yasuda, Masanari Yoshikawa, Koji Abe
  • Patent number: 10386784
    Abstract: An apparatus main body includes a drum guide configured to guide installation of a drum cartridge into the apparatus main body and a developing guide configured to guide installation of a developing cartridge into the apparatus main body. A downstream end of the developing guide is located farther away from an opening than a downstream end of the drum guide is. The drum cartridge includes a first handle located inside the apparatus main body in a state where the drum cartridge is installed in the apparatus main body. The developing cartridge includes a second handle located inside the apparatus main body in a state where the developing cartridge is installed in the apparatus main body. The handle cover is located between the opening and the first handle to cover the first handle, in a state where the drum cartridge and the developing cartridge are installed in the apparatus main body.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: August 20, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Mayu Wakamatsu, Masatoshi Shiraki, Kei Katagiri, Shota Iriyama, Keigo Nakajima
  • Patent number: 10372079
    Abstract: A photosensitive member unit includes a photosensitive member, a transfer roller, a mounting portion capable of mounting a development unit including a development roller, a first gear and a second gear each provided at one end of the photosensitive member in an axial direction of the photosensitive member, and a third gear provided at one end of the transfer roller in an axial direction of the photosensitive member and configured to engage with the second gear. The first gear, the second gear, and the third gear are helical gears. A direction in which helical teeth of the first gear are inclined is opposite to a direction in which helical teeth of the second gear are inclined, and the direction in which the helical teeth of the first gear are inclined matches a direction in which helical teeth of the third gear are inclined.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 6, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masao Uyama, Kenji Matsuda, Ken Kikuchi
  • Patent number: 10310443
    Abstract: An image forming apparatus has an openable-closable member, an image carrier, a cover sheet, and a cover moving mechanism. The openable-closable member is arranged in an open position where it keeps a recording medium conveying passage open and in a closed position where it keeps the recording medium conveying passage closed. The cover sheet is reciprocatable between a protection position where it covers the recording medium conveying passage side of the image carrier and a retracted position where it is retracted from the recording medium conveying passage. The cover moving mechanism moves the cover sheet to the retracted position or to the protection position by opening and closing the openable-closable member. Drawing out the cover sheet in the protection position to the recording medium conveying passage side causes the cover sheet to be arranged in a recording medium removal position.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 4, 2019
    Assignee: KYOCERA DOCUMENT SOLUTIONS
    Inventor: Nobuhiro Nishioka
  • Patent number: 10303115
    Abstract: A process cartridge includes: a drum cartridge including a photosensitive drum; and a toner cartridge which is mountable on the drum cartridge and stores toner, wherein the drum cartridge includes: a cleaner configured to collect waste toner on the photosensitive drum; a waste toner conveyance tube configured to convey the waste toner collected by the cleaner; and a developing unit which includes a developing roller configured to supply toner to the photosensitive drum and is swingable about a swing axis with respect to the photosensitive drum, and wherein the toner cartridge has a waste toner storing chamber for storing the waste toner conveyed by the waste toner conveyance tube.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 28, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 10291825
    Abstract: An image forming apparatus has an image forming unit that prints an image on a transfer medium, a conveying unit that conveys the transfer medium, a storage unit that stores a target color profile and a transfer medium profile; and a control unit that controls the storage unit and the image forming unit, and the control unit enables printing of a test chart at the image forming unit based on the target color profile and has a color adjustment function of, when receiving colorimetric data obtained by measuring color of the test chart, comparing the colorimetric data with data of a target chart based on the target color profile and enabling color adjustment of the image forming unit based on a comparison result, and, when obtaining a result after the color adjustment, storing information relating to the result after the color adjustment in association with a transfer medium profile.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: May 14, 2019
    Assignee: Konica Minolta, Inc.
    Inventor: Shin Ohba
  • Patent number: 10241466
    Abstract: An image forming apparatus includes a body casing, a pressing member, a process cartridge, and a drawer. The body casing includes a positioning member. The pressing member is disposed inside the body casing. The process cartridge includes a photosensitive drum. The drawer is configured to support the process cartridge and to move, in a sliding direction orthogonal to an axis direction of the photosensitive drum, between an inside position that is a position inside the body casing and an outside position that is a position outside the body casing. The process cartridge includes an engagement portion and a spring. The engagement portion is configured to be positioned by the positioning member. The spring is configured to be pressed by the pressing member such that the engagement portion is pressed toward the positioning member.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: March 26, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 10197966
    Abstract: An image forming apparatus includes image forming stations including respective electrophotographic photosensitive drums; an image transfer belt contactable to the drums; image transfer rollers, contactable to the transfer belt to urge the belt to the drums for transferring the toner images from the drums onto the belt, the rollers being provided with respective rotational shafts about an axis of which the rollers are rotatable; and a slidable member slidable in a direction in which the stations are arranged to retract the rollers away from the corresponding drums, the slidable member being provided with inclined surfaces contactable to the shafts, the inclined surfaces being disposed at such positions that the rollers are retracted from respective drums sequentially with the movement of the slidable member in the direction.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomomichi Kawashima, Takayuki Miyamoto
  • Patent number: 10191446
    Abstract: A photosensitive member cartridge detachably mountable to a main assembly of an image forming apparatus for forming an image, includes a frame; a photosensitive drum on which and which is provided in the frame; a transfer member for transferring an image formed on the drum onto the sheet; a mounting portion for detachably mounting a developing cartridge including a developer carrying member onto the drum and a memory for storing information; a first electrical contact provided on the frame and electrically connectable with a main assembly electrical contact provided in the main assembly when the cartridge is mounted to the main assembly; and a second electrical contact provided on the frame for electrically connecting the memory and the first electrical contact portion with each other when the developing cartridge is mounted to the mounting portion.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: January 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Miyamoto, Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki
  • Patent number: 10120326
    Abstract: There is provided a manufacturing method of manufacturing a cartridge by using a cartridge having a rotator, a frame that supports the rotator, an elastic member that is provided in a concave portion formed in the frame along a rotation axis direction of the rotator, and a sheet member that has one end fixed to the elastic member and the other end abutting on the rotator along the rotation axis direction of the rotator, and the manufacturing method includes: detaching the rotator from the frame; detaching the sheet member from the frame; detaching the elastic member from the frame; and attaching another sheet member to the frame via an adhesive member that is attached to an adhesive member attachment portion formed in the concave portion of the frame.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: November 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiteru Yamasaki
  • Patent number: 10061227
    Abstract: A powder container includes a storing chamber that stores powder, a discharge path extending through a wall of the storing chamber and from which the powder is discharged, an inner wall that forms an inner surface of the wall and has an opening communicating with the discharge path, an outer wall that forms an outer surface of the wall and has an opening communicating with the discharge path, and an opening-and-closing member provided between the inner wall and the outer wall and that opens and closes the discharge path while moving along the inner wall and the outer wall.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: August 28, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Atsushi Funada
  • Patent number: 10031474
    Abstract: An image forming apparatus, including a process cartridge and a main body with an opening and a cartridge supporter is provided. The process cartridge includes a drum cartridge; a toner cartridge attachable to the drum cartridge; and a switching member switchable states in the process cartridge between a first state, wherein detachment of the toner cartridge is restricted, and a second state, wherein the toner cartridge is released from the restriction. The cartridge supporter is movable between a first position, wherein the cartridge supporter supports the process cartridge to be placed entirely in an inner space in the main body on an inner side of the opening, and a second position, wherein the cartridge supporter supports the process cartridge to be at least partly placed outside the inner space. When the cartridge supporter is in the second position, the switching member is at least partly placed outside the inner space.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 24, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shougo Sato, Yasuo Fukamachi, Motoaki Mushika, Kazuna Taguchi
  • Patent number: 10012950
    Abstract: A printer 100 includes a housing, an image forming unit 120H, a body unit 150, positioning mechanisms and a lock lever 50. The positioning mechanism includes a unit biasing spring and a biasing projection, and positions the image forming unit 120H by biasing the image forming unit 120H mounted at a first position in the housing. The lock lever 50 is pivotably provided on the image forming unit 120H. The lock lever 50 can change the posture thereof between a first posture for locking the image forming unit 120H at the first position and a second posture for unlocking the image forming unit 120H and allowing the image forming unit 120H to be removed from the housing.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 3, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Daisuke Eto
  • Patent number: 9983499
    Abstract: A discharging member includes an electrically conductive knit fabric, a support member, and a first magnet member. The conductive knit fabric is knitted into a cylindrical shape with use of yarn formed by twisting together a plurality of metal fibers. The support member is cylindrical shaped and inserted in the conductive knit fabric. The first magnet member is placed inside the support member. With the conductive knit fabric grounded or with a voltage applied to the conductive knit fabric, the discharging member is placed in noncontact with a discharged member in such a fashion that the first magnet member is opposed to the discharged member with the support member and the conductive knit fabric interposed therebetween.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 29, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kenichi Tamaki, Tamotsu Shimizu, Hiroka Itani
  • Patent number: 9880514
    Abstract: A drum unit, to which a developer cartridge with a developer roller and a protrusion protruding in an axial direction of the developer roller is attachable, is provided. The drum unit includes a casing, a photosensitive drum to contact the developer roller, a first guide arranged to confront the protrusion along a direction orthogonal to the axial direction when the developer cartridge is attached to the casing to guide the protrusion, a second guide movable between a first position and a second position to guide the protrusion and arranged to confront the protrusion along the orthogonal direction when the developer cartridge is attached to the casing, and an urging member to urge the second guide in a direction from the first position toward the second position. The second guide includes a contact part to contact the first guide when the second guide is in the second position.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 30, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiromitsu Mizutani
  • Patent number: 9851692
    Abstract: Provided is a technique for suppressing the occurrence of density non-uniformities in an image formed on a sheet. An image forming apparatus, which forms an image on a recording material by transmitting driving force to a cartridge, includes: a frame having a positioning portion which positions the cartridge by contacting the attached cartridge; a driving force transmission rotating body which transmits driving force by engaging with a driving force receiving portion of the driven unit; and a circumferential surface which is provided in one portion of the frame and rotatably supports the driving force transmission rotating body.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: December 26, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Tsukahara
  • Patent number: 9841723
    Abstract: An image forming apparatus is described. An image forming apparatus may include an image forming apparatus body and a tandem type photosensitive unit slidable with respect to the body, wherein the unit includes: a frame; a plurality of photosensitive bodies; a plurality of developer cartridges, including developer carriers, detachably mountable on the frame; and a pressing portion provided on the frame for pressing each of the cartridges so that the developer carrier thereof is directed toward the corresponding photosensitive body, each of the cartridges is pivoted to be movable to an imaging position pressed by the pressing portion and a detached position released from the pressing by the pressing portion, and the body is provided with an abutting portion abutting the cartridge located on the detached position thereby pivoting the cartridge and moving the same to the imaging position when the unit is mounted on the body.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: December 12, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yasushi Okabe, Junichi Hashimoto, Isao Kishi
  • Patent number: 9760057
    Abstract: An image forming apparatus includes a cover that opens and closes an opening of an apparatus body, a unit removable from the apparatus body through the opening, a latch that is included in the unit and that is rotatable about a rotation fulcrum, the latch including a hook that is latched onto a latched portion of the apparatus body from downstream in a mounting direction of the unit to fix the unit onto the apparatus body and an operating portion that opposes the hook across the rotation fulcrum and that is operable through the opening, and a hindering portion that is included in the cover and that interferes, when the hook rotates in a separating direction in which the hook is separated from the latched portion in a state where the cover closes the opening, with the operating portion and hinders the hook from rotating in the separating direction.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: September 12, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Jun Sawamura, Hideki Sato, Yoshiro Konishi, Yasuhiro Kato, Takayuki Ukawa, Masahiro Akatsuka, Yusuke Sakurai
  • Patent number: 9740163
    Abstract: The present invention relates to a rotational force driving assembly and a process cartridge used for being engaged with a rotational force driving head inside an electrophotographic image forming device. The rotational force driving assembly can comprise a hub, a rotational force receiving component, a side plate, and an axis offset adjusting mechanism. When the axis offset adjusting mechanism is not subjected to external force, the axis offset adjusting mechanism enables the axis of the rotational force receiving component to be parallel and offset to the axis of the hub. When the axis offset adjusting mechanism is subjected to external force, the rotational force receiving component extends out to be engaged with the rotational force driving head.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 22, 2017
    Assignee: NINESTAR CORPORATION
    Inventors: Hongbiao Xiao, Jinlian Liu, Chao Wang, Hui Cao, De Chien, Jianxin Cao, Miaoling Yang, Likun Zeng, Geming Ding, Qin Luo, Wenyi Ding, Shuchun Dai, Hailong Ma
  • Patent number: 9678458
    Abstract: Provided is a remanufacturing method of a developer accommodating unit including a frame member configured to accommodate a flexible container for accommodating developer. The remanufacturing method includes taking out the flexible container from the inside of the frame member, and refilling the developer into the flexible container.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: June 13, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Kase, Kouki Yano, Yuta Isobe, Takahiro Ikeda, Yusuke Usui
  • Patent number: 9639009
    Abstract: The present invention provides a highly electro-conductive electrophotographic member which contributes to formation of high-quality electrophotographic images while bleeding out of an ion conducting agent is reduced, a process cartridge, and an electrophotographic apparatus. Accordingly, the electrophotographic member according to the present invention includes an electro-conductive mandrel and an electro-conductive layer, wherein the electro-conductive layer contains a resin synthesized from a nitrogen-containing aromatic heterocyclic cation and a compound being able to react with the nitrogen-containing aromatic heterocyclic cation, and an anion; the nitrogen-containing aromatic heterocyclic cation has two substituents bonded to hydroxyl groups; and the substituent bonded to the hydroxyl group is bonded to a nitrogen atom of a nitrogen-containing aromatic heterocycle of the nitrogen-containing aromatic heterocyclic cation.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 2, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sosuke Yamaguchi, Masaki Yamada, Hideya Arimura, Kazuhiro Yamauchi, Satoru Nishioka
  • Patent number: 9575452
    Abstract: An image forming apparatus includes a photosensitive drum, a light exposure device, a developing device, a fixing unit disposed opposite to the light exposure device relative to the developing device, a sheet supply tray disposed below the developing device, an ejection tray disposed above the developing device and having a sheet receiving surface inclined downward, relative to a horizontal direction, toward the charger, and a sheet conveying path through which a sheet is conveyed from the sheet supply tray to the ejection tray. A lowest end portion of the sheet receiving surface is disposed below an upper end of the charger in the vertical direction. The charger is disposed opposite to the developing device relative to the lowest end portion of the sheet receiving surface.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: February 21, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Masahito Saeki
  • Patent number: 9557684
    Abstract: In a developing cartridge, a first supporting member is attached to a housing and has a first developing supporting portion and a driving-force-receiving-member supporting portion. The first developing supporting portion is configured to rotatably support a first part of a rotational shaft and the driving-force-receiving-member supporting portion is configured to rotatably support a driving-force-receiving member. The second supporting member is attached to the housing and has a second developing supporting portion and a detection-rotational-body supporting portion. The second developing supporting portion is configured to rotatably support a second part of the rotational shaft and the detection-rotational-body supporting portion is configured to rotatably support a detection rotational body.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 31, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Nao Itabashi, Hideshi Nishiyama, Yasuo Fukamachi
  • Patent number: 9529304
    Abstract: A developer accommodating unit for accommodating a developer for image formation. A flexible container includes a developer accommodating portion for accommodating the developer and an opening for permitting discharge of the developer. The flexible container also includes a superposed multi layer sheet structure portion for forming the developer accommodating portion. A sealing member seals the opening and an unsealing member moves the sealing member to unseal the opening. A frame that accommodates the flexible container, the sealing member, and the unsealing member includes a fixing portion for fixing the flexible container. A fixed portion fixed to the fixing portion is provided at the superposed multi layer sheet structure portion of the flexible container, and an interlayer bonding portion between the superposed layers is provided between the fixed portion of the multi layer sheet structure portion and the developer accommodating portion.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: December 27, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Uesugi, Kojiro Yasui, Masaaki Matsushita, Masatomi Yoshida, Hiroomi Matsuzaki, Tatsuo Fujisaki, Junichi Matsumura, Kazuki Matsumoto
  • Patent number: 9513597
    Abstract: An image forming apparatus includes a toner cartridge which is detachably mounted from a first direction to store a toner; and a processing unit which is detachably mounted from a second direction perpendicular to the first direction and is provided with a photoconductor, a developing section for supplying a toner fed from the toner cartridge to the surface of the photoconductor to convert an electrostatic latent image to a toner image and a cleaning section for collecting the toner adhered on the surface of the photoconductor.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: December 6, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Takafumi Amano
  • Patent number: 9488928
    Abstract: The image forming apparatus has: a photoreceptor; an exposure unit that exposes the photoreceptor to light; a first contact portion; and a positioning portion provided in the exposure unit, this portion coming into contact with the first contact portion to position the exposure unit in a first position where the photoreceptor is exposed to light. The image forming apparatus also has: a second contact portion; and a contacted portion provided in the exposure unit, wherein the contacted portion is brought into contact with the second contact portion, thereby positioning the exposure unit in a second position where the positioning portion and the first contact portion are separated from each other.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 8, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Azeta
  • Patent number: 9471035
    Abstract: An image forming apparatus includes a printer body, a drum cartridge detachably attachable to the printer body, and a developing cartridge detachably attachable to the drum cartridge. The drum cartridge includes a handle and an urging member. The handle is configured to move between a protruding position at which the handle protrudes toward an attaching/detaching path for attaching and detaching the developing cartridge to and from the drum cartridge and a retracted position at which the handle is located farther from the attaching/detaching path than the handle that is located at the protruding position. The urging member urges the handle toward the protruding position. The handle is configured to protrude toward the protruding position by an urging force of the urging member when the developing cartridge is detached from the drum cartridge.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 18, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Shougo Sato
  • Patent number: 9465321
    Abstract: Provided is a remanufacturing method of a developer accommodating unit including a frame member configured to accommodate a flexible container for accommodating developer. The remanufacturing method includes taking out the flexible container from the inside of the frame member, and refilling the developer into the flexible container.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: October 11, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Kase, Kouki Yano, Yuta Isobe, Takahiro Ikeda, Yusuke Usui
  • Patent number: 9417603
    Abstract: A toner cartridge for an image forming device according to one example embodiment includes a housing having a reservoir for containing toner therein. The housing has an exit port on a front of the housing in fluid communication with the reservoir. A first leg and a second leg each project from a bottom of the housing and extend primarily along a front-to-rear dimension of the housing. A first alignment guide is positioned on a first side of the housing and a second alignment guide is positioned on a second side of the housing. Each alignment guide extends primarily along the front-to-rear dimension of the housing. The first alignment guide includes a pair of rounded contact points and the second alignment guide includes a rounded contact point. The rounded contact points of the first and second alignment control the vertical position of the toner cartridge in the image forming device.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: August 16, 2016
    Assignee: Lexmark International, Inc.
    Inventors: Benjer Albaran Acosta, James Anthany Carter, II, Gary Neal Hackney, Katrina Rosit Lactuan, James Richard Leemhuis, Keith Seaman, Bryan Christopher Scharf, Matthew Lee Rogers, Christopher Gene Vowels, Jason Hale
  • Patent number: 9395684
    Abstract: In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 19, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Nao Itabashi, Naoya Kamimura
  • Patent number: 9395688
    Abstract: A process cartridge includes: a drum cartridge including a photoconductor; a development cartridge configured to be detachably attached to the drum cartridge and including a developer carrying member for supplying developer to the photoconductor; a locking member provided on the drum cartridge and configured to be switchable between a locking position in which the development cartridge attached to the drum cartridge is in a locked state and restrained from being moved in a removing direction in which the development cartridge is removed from the drum cartridge and a lifting position in which the locked state is released and the development cartridge is movable in the removing direction, and a retaining member configured to retain the development cartridge which has been moved from the locked state in the removing direction by switching the locking member from the locking position to the lifting position.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 19, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yasuo Fukamachi