Patents Examined by Sandra Brase
  • Patent number: 10599094
    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: August 7, 2018
    Date of Patent: March 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Miyamoto, Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki
  • Patent number: 10599091
    Abstract: A cabinet includes a first body side engagement and a second body side engagement mounted on a body and a first cover side engagement and a second cover side engagement mounted on a cover. Slide restriction faces of the first cover side engagement and the second cover side engagement come into contact with slide restriction faces of the first body side engagement and the second body side engagement, respectively, to restrict sliding of a slider when the first cover side engagement does not engage the first body side engagement. The slide restriction face of at least one of the first body side engagement and the first cover side engagement has a length that is greater than a length of the slide restriction face of other one of the first body side engagement, the first cover side engagement, the second body side engagement, and the second cover side engagement.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 24, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Kikura, Yoshihide Ohta, Shoji Asanuma, Gakushi Tanaka, Tomoya Tanaka, Akimitsu Obana, Taiga Shoen
  • Patent number: 10592183
    Abstract: Examples disclosed herein relate to identifying a plurality of available printers associated with a printer sharing service, displaying, from the plurality of available printers, a sorted list of the plurality of available printers and a cost per page for each of the plurality of available printers, receiving a selection of a first printer of the plurality of available printers, and causing the first printer to print a print job.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: March 17, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Anil Datta Kumar B, Ramesh Kumar Veerthineni, Sekhar Muni Sirigiri
  • Patent number: 10591860
    Abstract: Provided is an image formation device including a photoreceptor configured to carry a toner image and a developer configured to form the toner image on a surface of the photoreceptor and configured such that the developer is a replaceable development unit, the image formation device including: a development bias application section configured to apply a development bias to between the photoreceptor and the developer; a stabilization control section configured to perform image stabilization control of determining a development bias value to be used in future by changing the development bias while measuring a density of the toner image formed by the developer, thereby obtaining the toner image with a target density; and a life determination section configured to determine expiration of use of the development unit when the development bias value determined by the stabilization control falls outside a preset acceptable range.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 17, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tatsutoshi Yamada, Kazuya Kitamura
  • Patent number: 10591854
    Abstract: An image forming apparatus includes a plurality of heater elements arranged in a direction perpendicular to a sheet transport direction to heat the sheet, a plurality of temperature sensors, each of which is configured to detect a temperature of one of the heater elements, and a controller configured to control each of the sensors to detect a first temperature before the sheet is passed by the corresponding heater element and a second temperature of the heater element after the sheet is passed by the corresponding heater element, and determine one or more of the heater elements to be energized based on the first temperatures and the second temperatures detected by the sensors.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: March 17, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masaya Arakawa
  • Patent number: 10585375
    Abstract: An image forming apparatus includes a groove, an exposure device and an adjustment member. In the groove, an end portion of a rotation shaft of a photosensitive drum is inserted. The exposure device is configured to emit a laser light on the photosensitive drum to form an electrostatic latent image. The adjustment member is configured to shift the end portion of the rotation shaft in a direction other than a vertical direction in the groove to adjust a skew of the laser light.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: March 10, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Teruhiko Nagashima
  • Patent number: 10585382
    Abstract: An MFP receives print data from an information processing apparatus, such as a mobile terminal or a PC. It is determined whether a predetermined character code is included as content in the received print data. A setting is changed so that the post-processing is performed in a position based on a right end of a printed matter in accordance with the determination before the printed matter is output.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: March 10, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Kaneda
  • Patent number: 10578994
    Abstract: An image forming apparatus includes a processor that derives, for each of a plurality of blocks of image data, a value indicating a toner amount to be used in forming a toner image by referring to a density of every pixel, of a plurality of pixels included in each block of image data, shifts a window, and outputs the window before shifting and the window after shifting, the window before shifting and the window after shifting overlapping with each other, and determines a fixing temperature for a fixing operation based on an analysis result of a first toner amount in the window that is output by referring to the toner amount of each block included in the window before shifting, and an analysis result of a second toner amount in the window that is output by referring to the toner amount of each block included in the window after shifting.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: March 3, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsunari Suzuki
  • Patent number: 10571859
    Abstract: A cartridge for use with a main assembly of an electrophotographic image forming apparatus, the main assembly including a driving shaft having a rotational force applying portion, wherein the cartridge is dismountable from the main assembly in a direction substantially perpendicular to an axial direction of the driving shaft, the cartridge including i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis thereof; and ii) a coupling member engageable with the rotational force applying portion to receive a rotational force for rotating the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller and a disengaging angular position in which the coupling member is inclined away from the rotational force transmitting angular position, wherein when t
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeo Miyabe, Takahito Ueno, Masanari Morioka
  • Patent number: 10571844
    Abstract: An image forming apparatus includes an image forming portion configured to form an image on a recording material, and a fixing portion including a first rotatable member and a second rotatable member, rotatable by rotation of the first rotatable member, and in contact with the first rotatable member. The fixing portion fixes the image on the recording material by heating the image while nipping and feeding the recording material, on which the image is formed, at a nip formed between the first rotatable member and the second rotatable member. A motor drives the first rotatable member, and torque detecting means detects a driving torque of the motor. On the basis of the driving torque detected by the torque detecting means, a controller controls a degree of temperature rise of the first rotatable member immediately before the recording material enters the nip.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiji Uekawa, Takao Izaki
  • Patent number: 10564577
    Abstract: A fixing device fixes a toner image onto a recording material by applying heat and pressure to the toner image formed on the recording material at a nip provided in a conveyance path of the recording material, and includes: a heating source; a pressure roller and a pressure pad; and a sandwiching member, wherein the pressure pad includes a first main surface and a second main surface, and the first main surface is formed of a long plate-like member, the sandwiching member includes a long plate-like abutting part, and a width-direction center in an area included in the second main surface and corresponding to a recording material passing region provided in the nip bulges toward the abutting part side more than width-direction both ends of the area included in the second main surface and corresponding to the recording material passing region provided in the nip.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 18, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Shinichi Yabuki
  • Patent number: 10564568
    Abstract: Provided is a method of detecting release of a development nip of an image forming apparatus that includes a photoconductor and a developing roller to contact each other to form a development nip and to be away from each other to release the development nip. The method includes obtaining a reference load, after charging the photoconductor in a state in which the development nip is formed, by measuring a load of a transfer system including the photoconductor and a transfer roller, release the development nip and blocking light irradiated from an exposing unit to the photoconductor, obtaining a detected load by measuring a load of the transfer system after exposing the photoconductor, and determining whether the development nip is normally released based on the reference load and the detected load.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 18, 2020
    Assignee: HP PRINTING KOREA CO., LTD.
    Inventors: Won-chul Jung, Joon-hee Kim, Young-hwan Kim
  • Patent number: 10564581
    Abstract: An image forming apparatus includes a photoreceptor, a charging unit, an exposure unit, a developing unit, a transfer unit, a detector, and a controller. The charging unit charges the photoreceptor. The exposure unit exposes the photoreceptor charged by the charging unit to light and forms an electrostatic latent image on the photoreceptor. The developing unit develops the electrostatic latent image that has been exposed by the exposure unit and formed on the photoreceptor. The transfer unit transfers an image obtained by development by the developing unit to a transfer object. The detector detects strip developer, which is a strip-shaped developer image formed on the transfer object.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: February 18, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kazuki Kuramoto, Yasuhiro Funayama, Hirofumi Hamada
  • Patent number: 10558137
    Abstract: An image forming apparatus includes a detection unit (control unit) configured to detect operation information of the image forming apparatus and a controller (control unit) configured to apply an AC voltage to a charging roller by a charging power source during a non-image-forming operation of the image forming apparatus. The controller is configured to control the duration for which the AC voltage is applied on the basis of the operation information detected by the detection unit.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 11, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Ikeda
  • Patent number: 10558144
    Abstract: A developing cartridge includes a developing portion to supply toner, a toner storing portion to store the toner, a partition wall formed between the developing portion and the toner storing portion and having a toner supply section, and a storing-portion agitating member rotatably disposed in the toner storing portion to intermittently rotate to move the toner in the toner storing portion while the developing portion supplies the toner.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 11, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ho-jin Jang, Jong-in Kim, Seong-woong Yang, Woong-yong Choi, Jin-hwa Hong
  • Patent number: 10551790
    Abstract: A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving side
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: February 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriyuki Komatsu, Shunsuke Uratani, Toru Oguma
  • Patent number: 10551775
    Abstract: A fusing apparatus for an image forming apparatus includes a fusing belt which rotates, a bushing guiding the fusing belt, a ring member rotatably coupled to the bushing and in contact with the fusing belt so as to rotate together with the fusing belt, and a sliding guide member, provided between the ring member and the sidewall of the bushing and at least partially disposed above a central axis of the fusing belt. The sliding guide member slidably supports the ring member and protrudes from the sidewall of the bushing such that a continuous gap is provided from a bottom of the sliding guide member to a bottom of the sidewall of the bushing.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 4, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Sun-hyung Lee, Sung-woo Kang, Ji-su Park, Sea-chul Bae, Gil-jae You, Seung-jun Lee, Young-hoon Han
  • Patent number: 10551766
    Abstract: A mode control section forms a plurality of reference toner images having different densities on a photosensitive drum, where the frequency of an alternating-current voltage of a development bias is varied with a potential difference between direct-current voltages of a development roller and the photosensitive drum maintained constant, generates a reference straight line indicating a relationship between a toner amount of each reference toner image obtained by converting the density of the measured reference toner image into weight, and a representative value of current values of a development current measured during formation of the reference toner image, and acquires the amount of electrostatic charge of toner using the reference straight line.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: February 4, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kazuhiro Nakachi, Satoshi Sunayama
  • Patent number: 10551786
    Abstract: An image forming apparatus includes a main assembly, a photosensitive drum, an optical print head, a receiving portion, a portion-to-be-engaged, and a guiding portion. The guiding portion is provided between the portion-to-be-engaged and the receiving portion with an interval from both the portion-to-be-engaged and the receiving portion. The guiding portion guides movement of a cleaning member in a direction from the receiving portion toward the portion-to-be-engaged while limiting movement of the cleaning member in a direction different from the longitudinal direction of the cleaning member to engage the engaging portion with the portion-to-be-engaged.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: February 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Iwai, Daisuke Aruga, Shinichiro Hosoi, Toshiki Momoka, Takehiro Ishidate, Yuya Tamura, Shinichiro Kaikawa
  • Patent number: 10551792
    Abstract: An image-forming apparatus includes: a main body; a toner cartridge having a first opening; a process cartridge having a photosensitive drum and a second opening; a positioning part; a transfer unit; and an urging member. The toner cartridge and process cartridge are attachable to and detachable from the main body in an axial direction of the photosensitive drum. The positioning part and transfer unit are positioned above the process cartridge attached to the main body. The positioning part fixes the attached process cartridge in position relative to the main body. The urging member urges the attached process cartridge toward the positioning part and urges the process cartridge such that the toner can be supplied from the toner cartridge to the process cartridge through the first opening and the second opening when the toner cartridge and the process cartridge are attached to the main body.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: February 4, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato