Process Cartridge Unit Patents (Class 399/111)
  • Patent number: 10412235
    Abstract: In an embodiment, an authentication system includes a supply device having a data storage chip with identification (ID) bit memory cells. The ID bit memory cells comprising a measured cell, pointer cells to store address information that points to the measured cell, and analog cells that store factory-measured analog information about the measured cell.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Huston W. Rice, David B. Novak, Erik D. Ness, Brendan Hall
  • Patent number: 10409186
    Abstract: A toner is provided, where good cleanability is exhibited, abrasion variations of the photo conductor surface is reduced, and contamination of a charge member is reduced. The toner includes toner particles and organic-inorganic composite fine particles on the toner particle surfaces, wherein each of the organic-inorganic composite fine particles is a particle in which inorganic fine particles are exposed at the surfaces of vinyl based resin particles in such a way that convex portions derived from the inorganic fine particles are formed on the surfaces, the average circularity of the toner is 0.960 or more, and the absolute value Q of the amount of triboelectricity of the toner measured by a two-component method and the electrostatic adhesion F of the toner satisfy 0.003?F/Q2?0.040.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: September 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yojiro Hotta, Shohei Tsuda, Taiji Katsura, Masaharu Miura, Yoshinobu Baba, Takayuki Itakura
  • Patent number: 10401785
    Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: September 3, 2019
    Assignee: Lexmark International, Inc.
    Inventors: Brian Scott Carpenter, Jason Paul Hale, James Richard Leemhuis, Matthew Lee Rogers, Daniel Joshua Smith, Edward Lynn Triplett
  • Patent number: 10401787
    Abstract: An image forming apparatus includes an apparatus main body, a cartridge including a supported portion, a moving member configured to move to the apparatus main body and thereby move the cartridge, the moving member moving to the apparatus main body so as to be in an external position and an internal position, a main body side positioning portion provided on the apparatus main body and configured to, when the moving member is in the internal position, support the supported portion, and an upward inclination portion provided on the apparatus main body and inclined upwardly from a movement direction in which the moving member moves from the external position to the internal position. The upward inclination portion causes the cartridge to move upward with respect to the moving member in a process in which the moving member moves from the external position to the internal position.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shoji Kamizato, Takayuki Yada
  • Patent number: 10401788
    Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
  • Patent number: 10394184
    Abstract: An image forming apparatus includes an image carrier, a developer carrier disposed so as to face the image carrier, a transfer body disposed so as to face the image carrier, and a contact-separation mechanism. The contact-separation mechanism brings the developer carrier and the image carrier into contact with each other and separates the developer carrier and the image carrier from each other, and brings the image carrier and the transfer body into contact with each other and separates the image carrier and the transfer body from each other.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 27, 2019
    Assignee: Oki Data Corporation
    Inventors: Kazuteru Kurihara, Atsushi Ohta
  • Patent number: 10386780
    Abstract: In a state where a first drum cartridge is mounted on a drawer unit located at an external position, a first exposure head moves from a first position through a second position to a third position. The first position is a position where the first exposure head is adjacent to a first photosensitive drum and a first drum cartridge is prevented from being removed from the drawer unit. The second position is a position where the first exposure head is farther away from the first photosensitive drum than at the first position and the first exposure head is slidably moved from the first position. The third position is a position where the first exposure head is farther away from the first photosensitive drum than at the second position, the first exposure head is rotatably moved from the second position, and the first drum cartridge is allowed to be removed.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 20, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Nao Itabashi
  • Patent number: 10386747
    Abstract: An image forming apparatus includes a toner container attaching unit to which a toner container is to be attached, the toner container attaching unit including an apparatus-side terminal that comes into contact with a container-side terminal of the toner container and an apparatus-side coupling that engages with a container-side coupling of the toner container, and a control unit. The control unit is configured to execute a first process to acquire information of the toner container via the apparatus-side terminal, and cause the apparatus-side coupling to be rotated based on a result of the first process.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: August 20, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masaaki Wakamatsu
  • Patent number: 10359734
    Abstract: An image forming apparatus includes an image carrier, a developing roller, a biasing member, and a fluctuation preventing member. A latent image is formed on the image carrier. The developing roller is provided to face the image carrier and develops the latent image on the image carrier. The biasing member is provided on an outside of an end portion of the developing roller and biases the image carrier and the developing roller in a direction where the image carrier and the developing roller approach each other. The fluctuation preventing member is interposed between the image carrier and the developing roller and prevents, along with the biasing member, a fluctuation in a distance between a surface of the developing roller and a surface of the image carrier in a region where the image carrier and the developing roller face each other.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: July 23, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Nao Kato, Mutsumi Kikuchi, Kenji Hayamizu, Shota Makita, Shinichi Oba, Iori Togu
  • Patent number: 10353339
    Abstract: A cartridge detachably attached to an apparatus body of an image forming apparatus includes: a restriction member provided on a toner cartridge, the restriction member being movable between a restriction position, at which relative movement between (1) the toner cartridge attached to the attachment portion of the process cartridge and (2) the process cartridge is restricted by an engagement of the restriction member and the process cartridge, and a non-restriction position, at which the relative movement is not restricted; and a driving transmission unit for transmitting a driving force from the apparatus body to the toner cartridge by engaging with the apparatus body. The restriction member moves from the restriction position to the non-restriction position when a driving force reception unit receives the driving force from the driving transmission unit.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isao Koishi, Shinjiro Toba, Masaaki Sato, Hiroshi Takarada, Keita Moue, Toshiyuki Karakama
  • Patent number: 10345737
    Abstract: An image forming apparatus provided with a toner storage container that stores a toner includes an integrated cover that includes a top part configured to be fixed to an upper surface of the toner storage container and a cover part for a front surface of the toner storage container. The top part and the front cover part are integral with each other. The integrated cover is held by the toner storage container during fixing of the top part of the integrated cover to the toner storage container.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: July 9, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Keisuke Taniya
  • Patent number: 10338520
    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: October 24, 2018
    Date of Patent: July 2, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi Shimizu, Koji Abe
  • Patent number: 10331077
    Abstract: A cartridge that can be mounted in and detached from main body of an apparatus of an image forming apparatus includes: a rotating member that rotates upon reception of driving force from main body of the apparatus; a coupling member that includes a force receiving portion for receiving the driving force from main body of the apparatus via a drive shaft, transmits the driving force to the rotating member by rotating, and is capable of moving relative to the rotating member; and a wire-shaped biasing member for biasing the coupling member, wherein the coupling member includes a groove that is contacted by the biasing member, and an opening width of the groove is wider than a wire diameter of the biasing member.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 25, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yohei Kusano, Takuya Kawakami, Takatoshi Hamada
  • Patent number: 10322580
    Abstract: A first supporting member includes a first engaging portion and a second engaging portion that respectively engage with a first engaged portion and a second engaged portion that are provided in a second supporting member. The first engaging portion and the second engaging portion are configured to apply force in directions opposite to the directions in which the first engaged portion and the second engaged portion move when an opening opens.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 18, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisuke Makiguchi, Naoki Matsumaru, Go Torii
  • Patent number: 10310415
    Abstract: A toner cartridge disassembly machine for at least partially disassembling a toner cartridge. The toner cartridge includes a toner hopper and a waste hopper coupled to the toner hopper via a first pin and a second pin. The first pin is removably coupled within a first connection joint and the second pin is removably coupled within a second connection joint. The disassembly machine includes a base, a docking station supported by the base and capable of receiving the toner cartridge, and a carrier frame movably coupled to the base. The disassembly machine further includes a pin removal arm supported by the carrier frame. The pin removal is movable into a position between the first connection joint and the second connection joint. The pin removal arm includes a first push-out pin configured to interact with the first pin and a second push-out pin configured to interact with the second pin.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: June 4, 2019
    Assignee: CLOVER TECHNOLOGIES GROUP, LLC
    Inventor: Laurence A. Schoell
  • Patent number: 10310412
    Abstract: A developing apparatus, a cartridge, and an image forming apparatus in which, in a longitudinal direction, an edge portion of a carrying portion is disposed so as to be positioned outside an inner edge portion of an edge portion sealing member, and inside an outer edge portion of the edge portion sealing member. An edge portion of the restricting member is disposed so as to be positioned outside the edge portion of the carrying portion, and inside the outer edge portion of the edge portion sealing member.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: June 4, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Fukatsu, Yuta Isobe, Shunsuke Mizukoshi
  • Patent number: 10289062
    Abstract: Disclosed is a development cartridge attachable/detachable to/from a main body of an image forming apparatus. The development cartridge includes at least a photosensitive drum to form an electrostatic latent image thereon or a developer roller to develop the electrostatic latent image by supplying a developer to the photosensitive drum, a housing to support the at least one photosensitive drum or the developer roller. A developer roller gear may be provided on a rotation shaft of the developer roller to connect to a driving gear of the main body when the development cartridge is attached to the main body, and a driven coupler provided at an end of the photosensitive drum to couple to a driving coupler located coaxially with the driving gear in the main body, based on shaft coupling when the development cartridge is attached to the main body.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 14, 2019
    Assignee: HP PRINTING KOREA CO., LTD.
    Inventors: Young Chae Kim, Junhui Kim, Jin-Hong Kim, Ji-Won Moon, Yun Kyu Shim, Sungwook Kang, Sunggi Kim
  • Patent number: 10289063
    Abstract: A first guide guides a first cartridge when the first cartridge is mounted onto a main casing. A second guide guides a second cartridge when the second cartridge is mounted onto the main casing. The first and second guides are located in the main casing. A third guide is located at an upstream side of the first guide in a first mounting direction that is a direction in which the first cartridge is guided by the first guide when the first cartridge is mounted onto the main casing. The third guide guides the first cartridge toward the first guide when the first cartridge is mounted onto the main casing. The third guide moves relative to the second guide between a first protruding position at which the third guide protrudes to outside the main casing and a first accommodated position at which the third guide is accommodated in the main casing.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: May 14, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Atsushi Miwa
  • Patent number: 10289065
    Abstract: A driving force receiving module includes: a power receiving component which engages with the engaging component of the driving head of the image forming apparatus; a driving cooperating component which cooperates with the driven rotating component; The driving force receiving module is engaged with the driving head in that the minimum of L, which represents the distance between any two points on the projected area of the two symmetrically arranged power receiving components on the plane perpendicular to the assembly direction of the process cartridge, ranges between D/2 and D+H, including end values; where D is the maximum outer diameter of the rotating head perpendicular to the rotating axis of the driving head, and H is the height of the most outer point on the contour of driving head protruding out of the assembly location of the engaging component.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: May 14, 2019
    Assignee: ZHUHAI UN-TERN IMAGING PRODUCTS CO., LTD
    Inventor: Honghui Zhou
  • Patent number: 10281872
    Abstract: An image-forming apparatus includes an apparatus body and a process cartridge attachable to and detachable from the apparatus body. The apparatus body includes a sheet-feed roller and a body wall. The process cartridge includes: a photosensitive drum; a drum frame; a developing roller; a cleaner; a conveying pipe and a waste-toner container for storing waste toner removed from the photosensitive drum by the cleaner and conveyed by the conveying pipe. The waste-toner container is detachably mountable on the drum frame. The waste-toner container mounted on the drum frame is positioned opposite to the photosensitive drum with respect to the developing roller. The body wall of the apparatus body and a container wall of the waste-toner container constitute a part of a sheet-conveying guide for guiding conveyance of a sheet from the sheet-feed roller toward the photosensitive drum when the process cartridge is attached to the apparatus body.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: May 7, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takashi Shimizu, Shougo Sato
  • Patent number: 10281873
    Abstract: A developing device, detachably mountable to an image forming apparatus main body, includes a developing frame containing a developer, a developing roller performing developing using the developer, and a plurality of electric contact points disposed at one end in an axial direction of the developing roller, on a face that intersects the axial direction. The developing device is pivotably centered on a pivot axis parallel to the axial direction of the developing roller, and electrically conducts with the image forming apparatus main body via the plurality of electric contact points when mounted to the image forming apparatus main body. In a plane perpendicular to the axial direction of the developing roller, a position of the pivot axis is within a polygon having a greatest area formed of outer shapes of the plurality of electric contact points and straight lines connecting the outer shapes of the multiple electric contact points.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 7, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Makiguchi, Tatsuro Harada, Hiroki Shimizu, Osamu Anan
  • Patent number: 10281867
    Abstract: A developer cartridge according to one aspect described herein is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a main body having an opening, the main body comprising an electric circuit, a front cover configured to move to an opening position in which the opening of the main body is exposed and to a closing position in which the opening of the main body is closed, a first terminal electrically connected to the electric circuit, a photosensitive drum, and a developer cartridge comprising a developing roller, developing frame having a pressed portion, memory unit and second terminal. The front cover may include a pressing portion configured to press the pressed portion of the developing frame in a direction from the developing roller toward the photosensitive drum, and wherein the second terminal faces to the front cover when the front cover is in the closed position.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: May 7, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masahiro Ishii, Fumio Morita
  • Patent number: 10274866
    Abstract: A toner container includes: a containing unit that contains a toner; a storage device that stores information; and an attachment unit. The attachment unit includes a cover member, a supporting member, and an insertion member. The cover member has a first projection and an insertion opening. The first projection extends in a first direction. The insertion opening is provided on the first projection and extends in a second direction. The supporting member has a first depression and a through opening. The first depression extends in the first direction and allows the first projection to be inserted into the first depression. The through opening extends in the second direction and is in communication with the first depression. The insertion member is inserted into the through opening and the insertion opening in a state where the storage device is positioned between the cover member and the supporting member.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: April 30, 2019
    Assignee: OKI DATA CORPORATION
    Inventors: Tetsu Koyama, Shigenori Koido, Atsushi Ota
  • Patent number: 10261444
    Abstract: A developing apparatus includes a rotatable developer carrying member, a first chamber to supply developer to the developer carrying member, and a second chamber to collect the developer from the developer carrying member. A first conveyance screw in the first chamber conveys the developer in a first conveyance direction, and a second conveyance screw conveys the developer in the second chamber. The second conveyance screw includes a rotary shaft, a first vane portion, and a second vane portion provided downstream of the first vane portion. A developer discharge portion is disposed upstream of the second vane portion in the first conveyance direction and discharges excess developer. The developer discharge portion is disposed in a predetermined area of the second chamber in which the developer is deliverable to a communication portion, and is provided in a bottom portion in the predetermined area of the second chamber.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 16, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Jun Shirayanagi
  • Patent number: 10261465
    Abstract: A developing cartridge may include a housing configured to hold toner. The cartridge may further include a developing roller including a developing roller shaft, a supply roller including a supply roller shaft, a developing electrode and a supply electrode. The developing electrode and supply electrode may be configured to guide an electrical contact of an image forming apparatus in one or more directions. In some examples, the developing electrode and supply electrode may have angled surfaces that extend toward one another.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: April 16, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Patent number: 10261467
    Abstract: A cartridge has a surface to be biased which is connected to a first surface extending in an intersecting direction that intersects with an insertion direction from an upstream side to a downstream side in the insertion direction, and an engaging portion engaging with a support member that supports the cartridge inside a main body and has a biasing member that biases an engaged portion to be engaged with the engaging portion in the intersecting direction. The engaged portion has a biasing surface extending in the intersecting direction from the upstream side to the downstream side in the insertion direction. Movement of the support member in the intersecting direction by the closing operation of an opening and closing member, the surface to be biased is biased by the biasing surface, the cartridge contacts with a positioning portion, and positioning of the cartridge is performed.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masaki Seto
  • Patent number: 10261463
    Abstract: An image forming apparatus includes a mounting unit configured to mount a cartridge including a developing member by moving the cartridge in the insertion direction, and a pressing member having a first pressing portion configured to press the cartridge mounted on the mounting unit to separate the developing member from a photosensitive member. The pressing member has a second pressing portion configured to press the cartridge mounted on the mounting unit to bring the developing member into contact with the photosensitive member, and the first pressing portion and the second pressing portion integrally moves with the movement of the pressing member. The image forming apparatus also includes an elastic member configured to press the pressing member so that the second pressing portion presses the cartridge.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: April 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomofumi Kawamura, Shoichi Zensai, Takashi Yano
  • Patent number: 10252873
    Abstract: An image forming apparatus includes a main body and a processing apparatus. The processing apparatus includes a first processing unit and a second processing unit. The main body has a manual-feed tray at one lateral face. The first processing unit and the second processing unit are stacked in the vertical direction on the same lateral face side of the main body as the manual-feed tray provided. The second processing unit is slidable in a toward-away direction between a connecting position and a separate position, and has a hollow to insert the manual-feed tray therein at the connecting position.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 9, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Yuhi Akagawa
  • Patent number: 10254705
    Abstract: A process cartridge having a drum cartridge and a toner cartridge is provided. The drum cartridge includes a photosensitive drum, a cleaner, a conveyer tube, a developing roller, and a developing device. The toner cartridge is attachable to the drum cartridge and is located on a side of the developing roller opposite to the photosensitive drum in an attaching direction. The toner cartridge includes a waste toner container to store the toner conveyed through the conveyer tube and a toner container to store the toner to be supplied to the photosensitive drum. The toner container communicates with a developing chamber in the developing device and is located at least partly between the waste toner container and the developing chamber. The conveyer tube extends in the attaching direction and is arranged to overlap the photosensitive drum, the toner container, and the waste toner container in a view along an axial direction.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: April 9, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shougo Sato, Hideshi Nishiyama, Aya Adachi, Atsushi Fukaya
  • Patent number: 10248075
    Abstract: An image forming apparatus includes: a frame; a plate including first and second electrical contact portions; and a developing cartridge detachably mountable to the frame. At least a portion of the first electrical contact portion is movable relative to the plate and separated farther from the plate than the second electrical contact portion The developing cartridge includes: a storage medium and a pressing portion. The storage medium includes first and second electrical contact surfaces. The pressing portion is configured to press the first electrical contact surface toward the first electrical contact portion to bring the first electrical contact surface into contact with the first electrical contact portion and to press the second electrical contact surface toward the second electrical contact portion to bring the second electrical contact surface into contact with the second electrical contact portion in a state where the developing cartridge is mounted to the frame.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 2, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 10228631
    Abstract: An image forming apparatus, having a photosensitive drum assembly, an exposure head, and a bearing, is provided. The photosensitive drum assembly includes a photosensitive drum and a flange disposed at an end of the photosensitive drum in an axial direction of an axis of the photosensitive drum. The flange contacts an inner surface of the photosensitive drum. The exposure head includes a plurality of light emitters aligned along the axial direction of the photosensitive drum, a lens array focusing light from the light emitters on the photosensitive drum, and a head frame to support the light emitters and the lens array. The bearing has a first contact face to contact the exposure head to define a distance between the lens array and the photosensitive drum along a direction of an optical axis of the light.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: March 12, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takamasa Tsukada, Junichi Yokoi
  • Patent number: 10222740
    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: May 1, 2018
    Date of Patent: March 5, 2019
    Assignee: Lexmark International, Inc.
    Inventors: Jason Paul Hale, Kyle Bradley Martin, Jeremy Keith Payne, Matthew Lee Rogers, Edward Lynn Triplett
  • Patent number: 10222738
    Abstract: A replaceable unit for an electrophotographic image forming device according to one example embodiment includes an electrical contact positioned on a first side of a housing of the replaceable unit for contacting an electrical contact in the image forming device. A guide on the first side of the housing is positioned closer to a front of the housing than the electrical contact and leads rearward toward the electrical contact. The guide includes an inside surface that faces inward sideways toward a second side of the housing. At least a portion of the inside surface is angled inward sideways from front to rear permitting contact between the inside surface and an electrical connector in the image forming device to draw the electrical connector in the image forming device inward sideways relative to the replaceable unit during insertion of the replaceable unit into the image forming device.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: March 5, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Jeremy Keith Payne, Edward Lynn Triplett
  • Patent number: 10216118
    Abstract: A toner cartridge includes a toner supply pipe and a first shutter. The toner supply pipe has a toner supply opening. When the toner cartridge is mounted onto a main unit, the toner supply pipe moves through an insertion opening from an outside position at which the toner supply opening is located outside a developing frame to an inside position at which the toner supply opening is located inside the developing frame. The first shutter is provided at the toner supply pipe. The first shutter moves relative to the toner supply pipe between an open position at which the toner supply opening is opened and a closed position at which the toner supply opening is closed. The first shutter moves relative to the toner supply pipe from the closed position to the open position in a state where the toner supply pipe is located at the inside position.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: February 26, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Saya Minoshima, Shougo Sato
  • Patent number: 10216138
    Abstract: A developing cartridge includes: a lever movable between a first position and a second position; an urging member urging the lever toward the first position; a gear; and a first and a second protrusions that are rotatable together with the gear. During rotation of the gear from a first rotational position to a second rotational position, the first protrusion moves the lever to the second position against urging force of the urging member and then the lever moves to the first position at a first speed while contacting the first protrusion. During rotation of the gear from the second rotational position to a third rotational position, the second protrusion moves the lever to the second position against the urging force. When the gear reaches the third rotational position, the urging force moves the lever to the first position at a second speed higher than the first speed.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 26, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Keita Shimizu
  • Patent number: 10216139
    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: December 8, 2017
    Date of Patent: February 26, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yasushi Okabe, Junichi Hashimoto, Isao Kishi
  • Patent number: 10209641
    Abstract: A charging device has a charging member, a pair of bearing members, and a frame. The charging member makes contact with an image carrying member to electrostatically charge the surface of the image carrying member. The bearing members rotatably support both end parts of the rotary shaft of the charging member. The frame supports the bearing members movably in the direction perpendicular to the axial direction. The bearing members are arranged selectively at a first position where they are arranged to keep the charging member in contact with the image carrying member or at a second position where they are arranged to keep the charging member apart from the image carrying member. In the bearing members, a restricting portion is formed which, at the second position, makes contact with the inner face of the frame to restrict the movement of the charging member in the axial direction.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: February 19, 2019
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Yoshimasa Okura
  • Patent number: 10203623
    Abstract: It is an object to suppress yellowing of a binder resin while obtaining an image with a high degree of whiteness and to suppress occurrence of image defects when printing at a high temperature and a high humidity. A toner for developing an electrostatic image, the toner including: white toner base particles containing a binder resin and titanium oxide having an average particle size of from 130 to 600 nm; and an external additive including strontium titanate.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 12, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yasuko Uchino, Hitomi Motani, Tomomi Oshiba
  • Patent number: 10203629
    Abstract: Provided is an image forming apparatus including an image carrier on which a latent image is developed, a developing roller that is provided to face the image carrier to perform development for the latent image of the image carrier, an urging unit that urges the image carrier and the developing roller so that the image carrier and the developing roller approach each other, and a distance regulating unit that includes a viscoelastic body that is deformed according to a change of a distance between the image carrier and the developing roller, and regulates at least one of a maximum value of the distance between the image carrier and the developing roller and a minimum value of the distance between the image carrier and the developing roller so that the distance between the image carrier and the developing roller falls within a predetermined range.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 12, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shota Makita, Shinichi Oba, Mutsumi Kikuchi, Nao Kato, Iori Togu
  • Patent number: 10197969
    Abstract: A process cartridge including a drum cartridge, a developing cartridge, and a waste toner container, is provided. The drum cartridge includes a photosensitive drum including a photosensitive layer and a rotation axis extending in an axial direction, a drum cleaner arranged to contact the photosensitive drum, a cleaner frame configured to accommodate the drum cleaner therein, and a waste toner conveyer tube connected with the cleaner frame. The developing cartridge is movable to be attached to and detached from the drum cartridge and includes a developer roller. The waste toner container is movable to be attached to and detached from the drum cartridge. When the developing cartridge and the waste toner container are attached to the drum cartridge, the waste toner container is connected with the waste toner conveyer tube and is located on an opposite side of the developing cartridge to the photosensitive drum.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: February 5, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hideshi Nishiyama, Atsushi Fukaya, Aya Adachi, Ryosuke Hayashi, Masaaki Furukawa, Shougo Sato
  • Patent number: 10191445
    Abstract: An image forming apparatus includes a movable unit including a regulating portion for regulating a position of a developing unit for supporting a developer carrying member, a driving member for moving the movable unit from a contact position to a spaced position, and an openable member for opening and closing an opening provided for demounting the developer carrying member and/or the image bearing member from a main assembly of the image forming apparatus. A pressing member presses and moves the movable unit by being moved in interrelation with an opening operation of the openable member. When the driving member is displaced from a contact phase to a spaced phase, the movable unit is moved to a first spaced position, and when the openable member is opened, the pressing member presses and moves the movable unit to a second spaced position from the contact position.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shoichi Zensai, Tomofumi Kawamura
  • Patent number: 10191442
    Abstract: An image forming apparatus includes an image forming unit and a cartridge removably attached thereto. The image forming unit includes: a toner image forming unit; and a toner storing portion including a first toner storing portion that stores a first toner, a waste toner storing portion that stores a waste toner, and a movable partition that separates the storing portions. The cartridge includes a second toner storing portion that stores a second toner. The image forming unit includes: a first portion for supplying the first toner in the first toner storing portion to the toner image forming unit; a second portion for supplying the second toner in the second toner storing portion to the toner image forming unit; and a conveying member that conveys the first toner supplied through the first portion and the second toner supplied through the second portion, to the toner image forming unit.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: January 29, 2019
    Assignee: Oki Data Corporation
    Inventor: Makoto Kitamura
  • Patent number: 10185286
    Abstract: An image forming apparatus includes a casing, a photosensitive member, an exposing device, a cartridge attachable to and removable from the casing, a protruding portion protruding toward a removal path along which the cartridge is removed, and a guide portion disposed on the cartridge. The guide portion is configured to, when the cartridge is attached to the casing, guide a sheet toward the photosensitive member. The guide portion is movable relative to the cartridge between a guide position where the guide portion guides a sheet and a retracted position where the guide portion is retracted from the protruding portion when the cartridge is removed from the casing.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: January 22, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Okamoto, Yusuke Ikegami
  • Patent number: 10185282
    Abstract: A disassemblable imaging apparatus includes a photo sensing assembly, a toner cartridge, and at least one torsion spring. The photo sensing assembly includes a casing and a photosensitive drum. The casing has an accommodating space. The photosensitive drum is installed on the casing and located at a side of the accommodating space. The toner cartridge is detachably located in the accommodating space. The at least one torsion spring is located in the accommodating space. A part of the at least one torsion spring is installed on the casing, and another part of the at least one torsion spring presses a side of the toner cartridge facing away from the photosensitive drum for pushing the toner cartridge toward the photosensitive drum.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 22, 2019
    Assignee: Avision Inc.
    Inventors: Chia-Hsin Lin, Jan-Hsing Kao
  • Patent number: 10187540
    Abstract: An image forming apparatus includes a light-receiving unit that includes light-receiving elements arranged along a movement direction of a target formed on an image carrier, and is arranged so as to receive light emitted from a light-emitting unit and specularly reflected off the image carrier; a member configured to limit a size, in the movement direction, of diffused reflection light that is incident on the light-receiving unit; a selection unit configured to select whether or not each of the light-receiving elements in the light-receiving unit is an effective light-receiving element; a generation unit configured to generate a detection signal from an output of the effective light-receiving element; and a detection unit configured to detect a target formed on the image carrier based on the detection signal.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 22, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Mukaibara, Takashi Fukuhara, Kazushi Ino, Naoki Nishimura, Keisuke Nakano
  • Patent number: 10181058
    Abstract: Techniques are provided for assisting owners to recover missing devices. The missing device automatically performs certain actions proactively in response to detecting conditions that indicate that the device has been lost or stolen. Conditions that indicate the device has been lost or stolen (“triggering conditions”) may include that a password failure has occurred more than a predetermined number of times. Any number and type of recovery-assisting actions may be taken, in response to triggering conditions, to assist owners in recovering a missing device. For example, a device may generate a record that indicates the current location of the device, and synchronize the record with an online service or some other device. The generation and synchronization of such records may be repeated on a periodic basis until either (a) the device becomes disabled, or (b) a user enters an appropriate password.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 15, 2019
    Assignee: Dropbox, Inc.
    Inventor: Cailen D'sa
  • Patent number: 10180655
    Abstract: An image forming apparatus includes a supporting member configured to support a developing unit and be movable between a first position and a second position, an opening/closing member configured to open and close an opening through which the developing unit passes when the developing unit is attached to or detached from the supporting member, and a restriction member configured to restrict a movement of the supporting member from a third position different from the first and second positions, wherein in case where the opening/closing member is opened when the supporting member is at the first position, the restriction member presses the supporting member to move to the third position, and in case where the opening/closing member is opened when the supporting member is at the second position, the restriction member presses the supporting member to move to the third position.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: January 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryota Shibuya, Masatoshi Takiguchi
  • Patent number: 10180653
    Abstract: An image forming apparatus is provided with: an apparatus body; a photosensitive member; a developing cartridge configured to have a developer supporting body; a cleaner configured to collect developer remaining on the photosensitive member; and a waste developer container configured to contain developer collected by the cleaner. The apparatus body is configured to have an installment passage, through which the developing cartridge passes when the developing cartridge is installed into and removed from the apparatus body. The waste developer container is configured to be movable between a first position at which at least a part of the waste developer container is located within the installment passage and a second position at which the waste developer container is located away from the installment passage.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: January 15, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Junichi Yokoi
  • Patent number: 10180651
    Abstract: An image forming apparatus includes a contact-separation mechanism that causes a photosensitive drum and a developer-bearing member to come into contact with each other or to separate from each other and a restricting member that restricts movement of a cartridge with the cartridge installed in a main body of the image forming apparatus. In the image forming apparatus, the contact-separation mechanism causes the photosensitive drum and the developer-bearing member to separate from each other while the restricting member restricts the movement of the cartridge with the cartridge installed in the main body. The restriction of the movement of the cartridge by the restricting member is released in conjunction with operation of bringing the photosensitive drum and the developer-bearing member into contact with each other by the contact-separation mechanism.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: January 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Tagami, Tomio Noguchi
  • Patent number: 10175643
    Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: January 8, 2019
    Assignee: Lexmark International, Inc.
    Inventors: Brian Scott Carpenter, Jason Paul Hale, James Richard Leemhuis, Matthew Lee Rogers, Daniel Joshua Smith, Edward Lynn Triplett