Patents Examined by Quana Grainger
  • Patent number: 11934133
    Abstract: An image forming apparatus includes an image forming device and circuitry. The image forming device forms an image. The circuitry corrects an amount of deviation based on a pattern formed by the image forming device, changes a magnification of the pattern, and calculates the amount of deviation based on the magnification.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: March 19, 2024
    Assignee: Ricoh Company, Ltd.
    Inventor: Ryoichi Kuboki
  • Patent number: 11934125
    Abstract: An image forming apparatus includes a heating rotary member that heats toner born on a recording material, and a pressure rotary member that pressurizes the heating rotary member. These rotary members form a fixing nip portion and fix a toner image to the recording material at the fixing nip portion while nipping and conveying the recording material. The apparatus further includes a web that collects toner adhering to a surface of the heating rotary member, a winding roller that winds the web, a motor that rotates the winding roller, a contact member that makes contact with an outer surface of the wound web and moves based on a position of the outer surface, a variable resistor that is connected to change a resistance value depending on a position of the contact member, and a control unit that controls a rotation amount of the motor based on the resistance value.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: March 19, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideki Ohta
  • Patent number: 11927902
    Abstract: An image forming apparatus according to one embodiment includes a maintenance management prediction device that predicts and determines the necessity of maintenance for a fixing unit, the type of the required maintenance, and the like by obtaining the difference between initial data (an initial detected temperature and an initial temperature estimation value) and latest data (a latest detected temperature and a latest temperature estimation value) of the fixing unit and comparing the difference to a predetermined range. Based on the comparison of the difference to the predetermined range the prediction device issues or not warning information.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: March 12, 2024
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Takeshi Kojima
  • Patent number: 11926501
    Abstract: An accommodating device includes a device body, an accommodating unit that is movable to a supply position where a user is able to supply a medium by being pulled out from the device body in a pulling direction and of which a centroid position is located on one side surface side with respect to a center in an intersecting direction with the pulling direction, a first expanding and contracting member that expands and contracts to connect the accommodating unit to the device body so as to be able to be pulled out and is fixed to one side surface of the accommodating unit in the intersecting direction, and a second expanding and contracting member that expands and contracts to connect the accommodating unit to the device body so as to be able to be pulled out and is fixed at a position higher than the first expanding and contracting member on the other side surface of the accommodating unit in the intersecting direction.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: March 12, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kota Tomioka, Hiroyuki Tanaka, Yoichi Yamakawa, Shinya Hasegawa
  • Patent number: 11927904
    Abstract: Provided is an electrophotographic belt of an endless shape including a substrate, wherein the substrate contains a polyimide resin and carbon nanotubes, wherein a content of the carbon nanotubes in the substrate is 15 vol % or less with respect to a total volume of the polyimide resin, wherein the substrate has a tensile strength of 200 MPa or more in each of a peripheral direction thereof and a direction perpendicular to the peripheral direction, and wherein the substrate has a thermal conductivity of 0.9 W/(m·K) or more in a thickness direction thereof.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: March 12, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akeshi Asaka, Taiki Watanabe, Yuma Kobayashi, Hidetaka Kawamura, Satoru Nishiuma, Akihiro Taya, Ryunosuke Kawahara
  • Patent number: 11921450
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a varnish coater, and a controller. When a first image forming job in which a toner image is formed to a first recording material and varnish is not applied is executed, the controller controls conveyance of the first recording material at a fixing nip portion such that a conveyance speed of the first recording material at the fixing nip portion is a first conveyance speed. When a second image forming job in which a toner image is formed to a second recording material of which a grammage is the same as a grammage of the first recording material and varnish is applied is executed, the controller controls conveyance of the second recording material at the fixing nip portion such that the second recording material is conveyed at a second conveyance speed faster than the first conveyance speed.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: March 5, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiro Tsukada
  • Patent number: 11914309
    Abstract: The present disclosure provides a toner cartridge. The toner cartridge includes a toner hopper containing toner, a waste toner bin containing waste toner, and a developing part disposed in the toner hopper. The toner hopper and the waste toner bin are movably connected; and the toner hopper is capable of moving from a first position to a second position relative to the waste toner bin. When the toner hopper is at the first position, the developing part is electrically connected to a printer and capable of receiving a developing voltage signal sent by the printer; and when the toner hopper is at the second position, the developing unit is electrically disconnected from the printer and not capable of receiving the developing voltage signal sent by the printer or not capable of sending an electrical signal to the printer.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: February 27, 2024
    Assignee: GEEHY MICROELECTRONICS INC.
    Inventor: Weichen Liu
  • Patent number: 11914319
    Abstract: A digital printing system incorporating in-track position corrections includes one or more printing subsystems, a data processing system; and a digital memory for storing a representation of an in-track position correction function, wherein the in-track position correction function is a non-linear function that specifies in-track position corrections to be applied as a function of cross-track position, and wherein the representation of the in-track position correction function includes the cross-track positions and transition direction of transitions in the in-track position correction function.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: February 27, 2024
    Assignee: EASTMAN KODAK COMPANY
    Inventor: Chung-Hui Kuo
  • Patent number: 11904531
    Abstract: Disclosed are selective deposition based additive manufacturing systems (10) and methods for printing a 3D part. Layers of a powder material (22) are developed using one or more electrostatography-based engines (12). The layers (22) are transferred for deposition on a part build surface. For each of the layers (22), the part build surface is heated to a temperature within a range between a flowable temperature and a thermal oxidation threshold to form a flowable part build surface, and the developed layer (22) is pressed into contact with the flowable build surface (88) to heat the developed layers (22) to a flowable state and form a new part build surface (88) which is fully consolidated. The new part build surface (88) is then cooled to remove the heat energy added during heating step before repeating the steps for the next developed layer.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: February 20, 2024
    Inventors: Chris Counts, J. Samuel Batchelder
  • Patent number: 11899385
    Abstract: According to one embodiment, a temperature control device includes a temperature estimation unit and a frequency generation unit. The temperature estimation unit is configured to estimate a temperature of an object being heated by an induction heating coil, the temperature being estimated based on a frequency of a drive signal supplied to an inverter connected to the induction heating coil. The frequency generation unit is configured to set the frequency of the drive signal based on the temperature estimated by the temperature estimation unit, a detected temperature of the object from a temperature sensor, and a target temperature for the object.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: February 13, 2024
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Yutaka Usami
  • Patent number: 11892795
    Abstract: An image-forming apparatus includes: a housing having an opening; a top cover configured to cover the opening; a short-range wireless communication circuit board attached to the top cover; a relay circuit board attached to the top cover; and a first wiring connecting the short-range wireless communication circuit board and the relay circuit board to each other. The short-range wireless communication circuit board includes: an antenna configured to transmit/receive radio waves; and a circuit electrically connected to the antenna. At least a part of the circuit and at least a part of the relay circuit board are overlapped with each other in an up-down direction.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: February 6, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Junichi Yokoi, Yohei Hashimoto
  • Patent number: 11874625
    Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: January 16, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Osamu Anan, Masato Tanabe, Tsukasa Abe, Kazutaka Sueshige
  • Patent number: 11874619
    Abstract: An image forming apparatus includes a toner image forming unit, a fuser including a heater, a temperature sensor that detects a temperature of the fuser, and a controller. The controller exercises a standby control that includes repeating a control cycle, measuring a temperature fluctuation period that is a time period from start of energizing the heater to an end of the control cycle, and setting an energization amount for a next control cycle, based on the measured temperature fluctuation period. The control cycle includes energizing the heater with an energization amount during a preset heating period when the detection temperature has dropped to a temperature below the target standby temperature, and waiting until the detection temperature drops to the target standby temperature in a case where the detection temperature has risen to a temperature equal to or above the target standby temperature after the preset heating period has elapsed.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: January 16, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Daisuke Noda
  • Patent number: 11846901
    Abstract: An example fuser includes a flexible fixing belt, a backup member to form a fixing nip with the fixing belt, a heater substrate for heating the fixing belt at the fixing nip and having a first surface comprising a heating element pattern, a common terminal and a driving power supply terminal for supplying power to the heating element pattern, and a second surface in contact with the fixing belt, and a temperature sensor sheet comprising a temperature sensor, a sensing terminal and an electric wire connecting the temperature sensor to the sensing terminal, wherein the temperature sensor sheet is in contact with the first surface of the heater substrate such that the sensing terminal and the electrical wire do not overlap the common terminal and the driving power supply terminal.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: December 19, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hojin Ryu, Sunhyung Lee, Sungwoo Kang
  • Patent number: 11841658
    Abstract: A fixing apparatus includes a first rotary member, a nip forming unit including a heater and a holder member, a second rotary member, and a support member. The holder member includes a first surface configured to support the heater and provided on the nip portion side of the holder member in an orthogonal direction orthogonal to both of a longitudinal direction and a short direction, a second surface provided on a side of the holder member opposite to the first surface in the orthogonal direction and configured to abut a first abutting portion of the support member and abut a second abutting portion of the support member, and a rib portion provided to project from the second surface and extend in the short direction throughout at least a range in the short direction where the first surface is provided.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takaaki Akamatsu, Toru Imaizumi, Koji Yasui, Yosuke Naito
  • Patent number: 11841667
    Abstract: A coupling structure is provided in an imager forming apparatus that forms an image on a recording material and configured to couple a first member and a second member. The second member includes a sheet metal having an insulative layer on a surface of a metal layer. A first conductive portion is formed in the first member. A second conductive portion includes a projection formed by press working in the second member. A coupling portion couples the first member and the second member in a state in which at least a part of the first conductive portion and at least a part of the second conductive portion are contacted with each other.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: December 12, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiro Tomono, Takahiro Kobayashi
  • Patent number: 11841649
    Abstract: In an image forming apparatus including a transfer member that primarily transfers a developer image from an image bearing member onto an intermediate transfer belt by applying an electric current to an intermediate transfer belt in a circumferential direction, a control unit which executes a first mode in which to rotate the intermediate transfer belt and a second mode in which to rotate the intermediate transfer belt at a rotation speed higher than that in the first mode. The control unit performs control such that an absolute value of a second voltage to be applied to the transfer member in a case of performing primary transfer in the second mode is less than an absolute value of a first voltage to be applied to the transfer member in a case of performing the primary transfer in the first mode.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroko Katagiri, Shinji Katagiri, Koji An
  • Patent number: 11841676
    Abstract: An image forming apparatus includes an image bearing member, a transfer member, a power source, a detecting portion, a controller, an environment detecting portion, and a contact member. In a case that an absolute water content acquired on the basis of environmental information is a predetermined threshold or more, the controller sets a limit voltage on the basis of a detection result of the detecting portion in a state in which the recording material is absent in a transfer portion, and the controller controls the power source so that an absolute value of a voltage applied from the power source to the transfer member during contact of the recording material with the transfer member and the contact member is an absolute value of the limit voltage or less.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji An, Shinji Katagiri
  • Patent number: 11841659
    Abstract: An apparatus provided with a power source device indicating a converting unit includes a switching unit, a discriminating unit, and a controller. In the case where the discriminating unit discriminates that an overcurrent state occurs during an operation of the power source device in a first mode, the mode of the operation of the power source device is switched to a second mode by the switching unit and then the occurrence of the overcurrent state is notified.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: December 12, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shotaro Yoshimura
  • Patent number: 11835876
    Abstract: In opposition to a sheet feeding path, an ultrafine particle (UFP) collecting filter provided between transfer and fixing is easily exchanged. Therefore, a duct unit kept in a state of holding the UFP collecting filter is removably and easily mounted to a duct.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: December 5, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryoichi Kawasumi