Responsive To Copy Media Characteristic Patents (Class 399/45)
  • Patent number: 10969712
    Abstract: An image heating apparatus includes a heater including a first heat generating block and a second heat generating block, and a power control portion that controls electrical power to be supplied to the respective heat generating blocks. When a recording material passes the position of the heater, and, in a longitudinal direction of the heater, when an entire range in which the second heat generating block is provided is a range in which the recording material passes and only a portion of a range in which the first heat generating block is provided is a range in which the recording material passes, the power control portion controls the electrical power to be supplied to the respective heat generating blocks so that electrical power Wd supplied to the first heat generating block is less than electrical power Wc supplied to the second heat generating block.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: April 6, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Sako, Atsushi Iwasaki, Keisuke Mochizuki
  • Patent number: 10962913
    Abstract: An image forming apparatus includes: a sheet feeding tray that stores a sheet; a sheet thickness measurement device that measures a sheet thickness of the sheet fed from the sheet feeding tray; a hardware processor that: determines a type of the sheet of which the sheet thickness is measured, a sheet type associated with each of sheet thickness ranges, and the sheet thickness measured by the sheet thickness measurement device; and adjusts a first sheet thickness range by expanding the first sheet thickness range to at least one of an upper limit value side or a lower limit value side; and an image former that forms an image on the sheet fed from the sheet feeding tray under image forming conditions corresponding to the sheet type determined by the hardware processor.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: March 30, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Mie Kawabata, Akira Murakawa, Atsushi Kawai
  • Patent number: 10948863
    Abstract: An image forming apparatus including an image forming device, a sensor, and a processor. The image forming device is to form an image on recording medium. The sensor is to irradiate light to the recording medium and detect an amount of light transmitted through the recording medium and an amount of light reflected from the recording medium, resulting in a control of a printing operation of the image forming device based the amount of light transmitted through the printing medium and the amount of light reflected from the printing medium.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: March 16, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: Yuichiro Tomishima
  • Patent number: 10931844
    Abstract: An image inspection apparatus includes a first outputter that outputs color information of an image to be formed on a recording medium determined according to the type of recording medium; a reader provided facing one side of the recording medium and configured to output an image signal obtained by reading the recording medium; a second outputter that outputs an edge position of the recording medium and/or the image formed on the recording medium detected based on the image signal; first background members configured to face and contact another side of the recording medium and having different heights; second background members configured to face and contact the another side of the recording medium and having different colors; and an arranger that brings one member, selected according to the recording medium type from among the first and second background members, into contact with the another side of the recording medium.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: February 23, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohta Aoyagi, Susumu Mikajiri, Kimiharu Yamazaki, Satoshi Nakayama, Hideyo Makino, Yoshinari Onuma
  • Patent number: 10915052
    Abstract: A recording material determination apparatus includes a transmission unit, a reception unit, and a determination unit. The transmission unit transmits an ultrasonic wave to a recording material. The reception unit vibrates when the reception unit receives the ultrasonic wave having been transmitted from the transmission unit and having passed through the recording material, and outputs a signal corresponding to a vibration state. The determination unit determines a basis weight of the recording material in accordance with the signal output from the reception unit. A resonance frequency of the reception unit differs from a resonance frequency of the transmission unit, and the reception unit is capable of receiving a sound wave in an ultrasonic range and a sound wave in an audible range.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junya Azami, Masafumi Monde, Hiromitsu Kumada, Yuka Fujii, Mizuki Ishimoto
  • Patent number: 10852678
    Abstract: A pressing rotator can contact a rotatable member. An arm rotatably supports the pressing rotator and changes the distance from a rotation center of the pressing rotator to the rotatable member by rotation. A pusher is rotatable around a rotation center of the arm. An elastic member is located between the arm and the pusher and biases the arm in a direction in which the pressing rotator contacts the rotatable member. A cam follower is mounted on the pusher. The cam can contact A cam follower and is rotatable around a first rotation center. The distance from the rotation center of the arm to the first rotation center of the cam is shorter than the distance from the rotation center of the arm to the center of the cam follower.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: December 1, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Toshiya Inomata
  • Patent number: 10852693
    Abstract: An image forming apparatus includes a transfer member to transfer a toner image borne on s photosensitive member onto a conveyed recording material on receiving voltage from a power supply. Where an image is formed at a transfer portion on a first recording material and a subsequent second recording material, a time interval is changed to a first or second interval based on information concerning the transfer onto the first recording material. The second recording material has a second width greater than a first width of the first recording material. The time interval is from when a first recording material trailing edge passes through the transfer portion to when a second recording material leading edge reaches the transfer portion. The photosensitive member rotates one or less rotations during the first interval and rotates one or more rotations during the second interval.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 1, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Jun Asami
  • Patent number: 10813177
    Abstract: A cooking apparatus includes a coil configured to generate a magnetic field, a driver including a first switch and a second switch and configured to change a direction of the current, a current detector configured to detect the current of the coil, a controller configured to increase a duty cycle of the first switch during a reference time when an operation start signal is transmitted thereto, control operations of the first switch and the second switch on the basis of an operating frequency when the reference time elapses, check zero cross points of currents detected while the first switch and the second switch are operated, compare a time point of the checked zero cross point to a starting time point of an turn-on operation of the first switch to determine a material of the vessel, and block the applied current when the vessel is determined to be a non-heatable vessel.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam Ju Park, Ji Woong Choi, Sang Hyun Kang, Se Bin Im
  • Patent number: 10754294
    Abstract: A controller is configured to execute a larger gamut technology mode in which the controller performs image formation by controlling a ratio of a rotation speed of a development roller to a rotation speed of a photosensitive drum such that the ratio becomes a second speed ratio higher than a first speed ratio in a normal mode. The controller is configured to, when the controller executes the larger gamut technology mode, control transfer voltage based on a humidity around an image forming apparatus.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoaki Nakai, Shizuma Nishimura, Masaki Shimomura
  • Patent number: 10725409
    Abstract: A fixing device for fixing a toner image to a recording medium, such as a sheet of paper, includes a fixing element, a press roller to press against the fixing element and form a nip through which the sheet passes, and a pressure control mechanism configured to control a pressing of the press roller against the fixing element according to a position of a radio frequency identification (RFID) tag embedded in the sheet such that a pressure of the press roller against the fixing element is at a first pressure when a RFID region of the sheet passes through the nip and at a second pressure otherwise, the first pressure being less than the second pressure.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: July 28, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Koichiro Sato
  • Patent number: 10705444
    Abstract: An image forming apparatus includes an intermediate transfer unit that holds an image to be transferred onto a recording medium, a base image formation unit that forms a planar base image onto the intermediate transfer unit by using an opaque base image forming agent, the base image being brought into contact with and disposed onto an entire surface of the recording medium or a partial region of the surface of the recording medium, a transparent image formation unit that forms a transparent image onto the intermediate transfer unit by using a transparent image forming agent, a first control unit that performs control for transferring a monochromatic or polychromatic image including the base image formed on the intermediate transfer unit by the base image formation unit onto the recording medium, a second control unit that performs control for superposing a monochromatic or polychromatic image including the base image formed by the base image formation unit onto the transparent image formed on the intermediate
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 7, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yoshiyuki Tominaga, Masaaki Yamaura, Jun Kuwabara
  • Patent number: 10684443
    Abstract: An apparatus includes a control portion. When a toner image formed on a first recording material is fixed onto the first recording material by the fixing portion, and then an image is formed on a second recording material of which width is larger than that of the first recording material, the control portion can execute a cooling sequence to cool a non-passing region of the fixing portion through which the second recording material passes but the first recording material does not pass, before the toner image formed on the second recording material is fixed by the fixing portion. The control portion sets an execution condition to execute the cooling sequence in accordance with information on the toner image in the region of the second recording material corresponding to the non-passing region.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 16, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Tsuchihashi, Atsushi Iwasaki
  • Patent number: 10671007
    Abstract: An image forming apparatus including an image forming device, a sensor, and a processor. The image forming device is to form an image on recording medium. The sensor is to irradiate light to the recording medium and detect an amount of light transmitted through the recording medium and an amount of light reflected from the recording medium at each of a plurality of positions. The processor is to determine a thickness of the recording medium based on the amount of light transmitted through the recording medium and the amount of light reflected from the recording medium at each of the plurality of positions. The processor is to then control the image forming device on the basis of the determined thickness.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: June 2, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: Yuichiro Tomishima
  • Patent number: 10663901
    Abstract: An image forming apparatus includes: a fixer including fixing rotation body and pressing rotation body with a fixing nip therebetween, and heats and presses a fed sheet through the fixing nip to fix a toner image on the sheet to the sheet; and a hardware processor making a velocity difference between respective surface velocities of the fixing rotation body and the sheet passing through the fixing nip during a high-gloss mode operation to adjust a gloss of the toner image on the sheet. The hardware processor performs a control so that an absolute value of a velocity difference between respective surface velocities of the fixing rotation body and the pressing rotation body in press-contact when the sheet does not pass through the fixing nip is less than one between respective surface velocities of the fixing rotation body and the sheet when the sheet passes through the fixing nip during the high-gloss mode operation.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 26, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yasuo Shirodai, Makoto Fujii, Masahiro Onodera
  • Patent number: 10659641
    Abstract: Disclosed is an image forming apparatus, which may execute a job including printing an image. The disclosed image forming apparatus may include: a printer; a detector that may detect a property of a printing paper sheet, the printing paper sheet being a paper sheet used by the printer in the printing; and a determinator that may, on the basis of the property detected by the detector and a situation of the job, determine conditions for executing the printing.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: May 19, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Katsuyuki Ikuta, Masahiro Kamiya, Shota Igo
  • Patent number: 10609237
    Abstract: An image forming system having a printing apparatus including a feeder to be pulled out and an image forming unit. The printing apparatus further includes a reception unit to receive a user instruction for setting sheet information on a sheet in association with the feeder. Based on set sheet information, the image forming unit forms an image on a sheet fed from the feeder. The image forming system further includes a display unit to display feeder information and a detection unit to detect that the feeder in a pulled-out state is closed. The display unit displays the feeder information subjected to the user instruction in a first display form and, based on a detection by the detection unit, changes the display by the display unit including the first display form having the feeder information to a display including a second display form different from the first display form.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: March 31, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Aya Ito, Yuzo Harano, Hideaki Ooba, Nobuhiro Kawamura, Yusuke Kimura
  • Patent number: 10599073
    Abstract: An image forming apparatus includes a transport member that transports a continuous medium as a result of a transport surface of the transport member making contact with the continuous medium and a transfer device that is disposed on a downstream side in a direction in which the transport member transports the medium and that transfers an image onto the medium, which extends to the transport member, as a result of a transfer surface of the transfer device making contact with the medium. A moving speed of the transfer surface is lower than a moving speed of the transport surface when the medium is transported.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 24, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kanji Watanabe
  • Patent number: 10599083
    Abstract: An image forming apparatus includes: a printing part including: an image carrier on a surface of which an electrostatic latent image is to be formed; a developing device that develops the electrostatic latent image to generate a toner image; a transfer device that transfers the toner image to a paper sheet; a fixing device that fixes the toner image; and a cleaner that removes toner remaining on the image carrier; a selection part that allows a user to select one of a plurality of automatic detection modes; a paper conveying part including: a paper feeder that supplies the paper sheet; a conveying roller that conveys the paper sheet; and a timing roller that supplies the paper sheet to a transfer position; a detector that detects a characteristic of the paper sheet; and a hardware processor that detects a paper type category, and controls the printing part under image forming conditions.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: March 24, 2020
    Assignee: Konica Minolta, Inc.
    Inventor: Tomohisa Yoshida
  • Patent number: 10576753
    Abstract: An image forming apparatus includes: a light source that emits a laser beam; a polygon mirror that reflects the laser beam; a photoreceptor that is to be exposed to the laser beam reflected by the polygon mirror; a motor that rotates the polygon mirror; and a hardware processor capable of detecting sheet type, that is, type of a sheet conveyed in the image forming apparatus, wherein the hardware processor controls to rotate the motor at a first rotation speed until the sheet type is detected, and rotate the motor at a second rotation speed determined on the basis of the sheet type after detection of the sheet type.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: March 3, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Tatsutoshi Yamada
  • Patent number: 10564578
    Abstract: A fixing device includes a rotating unit, a heating unit configured to heat the rotating unit, and a pressure member configured to nip a recording material between the rotating unit and the pressure member and to convey the recording material. A control portion is configured to change the rotating unit from a rotating state to a halt state. A setting portion is configured to set a heating temperature of the heating unit in the rotating state according to information of a basis weight of the recording material. In addition, a determining portion is configured to determine whether or not a heating operation of the heating unit in the halt state is to be performed according to the information of the basis weight of the recording material.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 18, 2020
    Assignee: Canon Finetech Nisca Inc.
    Inventors: Akihiro Maeda, Shohei Tsuzaki, Hiroshi Morita
  • Patent number: 10551756
    Abstract: An image forming apparatus includes an image holding member; a charging unit that charges the surface of the image holding member; an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holding member; a developing unit that has an electrostatic charge image developer and that develops the electrostatic charge image on the surface of the image holding member with the electrostatic charge image developer to form a toner image; a transfer unit that transfers the toner image formed on the surface of the image holding member to a recording medium; and a fixing unit that includes a fixing belt that comes into contact with the toner image transferred to the recording medium, a rotational member that is disposed in contact with the outer surface of the fixing belt and that forms a contact area between the fixing belt and the rotational member, and a heat source that is disposed so as to face the inner surface of the fixing belt to directly heat the fix
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 4, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tsuyoshi Murakami, Kana Yoshida
  • Patent number: 10530949
    Abstract: An image forming apparatus includes a conveyance controller and a processor. The conveyance controller controls a conveyance operation for conveying an image forming medium. The processor executes an image quality maintenance operation for maintaining quality in an image forming processing. The processor executes at least a part of the conveyance operation and a part of the image quality maintenance operation in parallel.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: January 7, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Shigeru Morino
  • Patent number: 10520867
    Abstract: An image forming apparatus includes a heater, a first heater drive circuit which rectifies AC power from an AC power supply and subjects a current to be conducted to the heater to PWM control, and a second heater drive circuit which allows conduction from the AC power to the heater. The image forming apparatus further includes a switching circuit which sets a drive circuit which is to drive the heater to any one of the first heater drive circuit and the second heater drive circuit and a control unit which controls switching between the drive circuits by the switching circuit.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 31, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeshi Tamada, Hiroaki Takatsu, Takahiro Tsujimoto, Tianhua Xu
  • Patent number: 10509350
    Abstract: An image forming apparatus which can accurately predict occurrence of damage to a fixing rotary member due to passage of a recording material and prevent consequential deterioration of a formed image. The image forming apparatus includes: a pair of fixing rotary members constituting a nip part for nipping a recording material on which a toner image is formed; a surface homogenizing member for homogenizing the surface of the fixing rotary member; a hardware processor that acquires physical property information of the recording material; and a controller for controlling drive of the surface homogenizing member according to the physical property information of the recording material acquired by the hardware processor that acquires the physical property information.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: December 17, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Tsutomu Sakamaki
  • Patent number: 10496016
    Abstract: An image forming apparatus is configured to execute a first image forming mode, in which an image is formed by forming toner images on a first photosensitive member and a second photosensitive member, and a second image forming mode, in which an image is formed by releasing the first photosensitive member from an outer peripheral surface of an intermediate transfer member and bringing the second photosensitive member into abutment against the outer peripheral surface of the intermediate transfer member. A control unit is configured to set a potential difference, which is a difference between an absolute value of a dark point potential of the second photosensitive member and an absolute value of a direct current component of a developing bias, to be lower in a case of the second image forming mode than in a case of the first image forming mode.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: December 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koji Arimura
  • Patent number: 10496028
    Abstract: An image forming apparatus includes an image bearing member on which an electrostatic latent image is formed; an image bearing member charging unit which applies an image bearing member charging voltage; a developer bearing member to which developing voltage for developing the electrostatic latent image on the image bearing member is applied and which bears and transports a developer; a primary transfer unit which transfers a developer image on the image bearing member to an intermediate transfer member; and a charging member which charges the developer on the intermediate transfer member. The developer image is first primarily transferred and then secondarily transferred to a recording material. The image forming apparatus operates in a first mode in which a residual developer on the intermediate transfer member after the secondary transfer is electrostatically removed from the intermediate transfer member, and a second mode.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taisuke Minagawa, Yusaku Iwasawa
  • Patent number: 10484557
    Abstract: An image processing apparatus includes an acquisition unit, an identification unit, and a generation unit. The acquisition unit acquires image data generated by reading an image on an original. The identification unit identifies a predetermined size of an original, the predetermined size being different from a size of the original. The generation unit adds image data of a different image to the acquired image data, without changing a size of the image in the acquired image data, to generate image data corresponding to the predetermined size of the original.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: November 19, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Seishiro Kato
  • Patent number: 10444679
    Abstract: An image forming apparatus includes a sheet transport path, a toner image transfer section along the sheet transport path at which a toner image is transferred to a sheet conveyed along the sheet transport path, a heating unit downstream from the toner image transfer section in a sheet transporting direction, the heating unit having a plurality of heating members arranged along a sheet width direction, and a control unit. The control unit is configured to determine locations of end portions of a label on the sheet in the sheet width direction, and during heating of the sheet by the heating unit, control heating members at locations facing the end portions of the label to generate less heat than the one or more of the other heating members.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 15, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Isao Yahata
  • Patent number: 10430133
    Abstract: An image forming system includes: a server accepting a print job from a client apparatus; and an image forming apparatus receiving an order for the print job from the server, the image forming apparatus including: a sheet feeding tray accommodating a sheet; a hardware processor determining to receive an order for a print job accepted by the server when a first and second conditions are satisfied; and an image former forming a page image based on the print job accepted by the server and a page image based on the print job being accepted specifying the sheet of the same size as that of the sheet specified, by allocating the page images in parallel to the sheet of twice the size of the sheet specified, when it is determined by the hardware processor that the order for the print job accepted by the server is received.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: October 1, 2019
    Assignee: Konica Minolta, Inc.
    Inventor: Yoshifumi Wagatsuma
  • Patent number: 10416587
    Abstract: A charging device includes a first charging unit and a second charging unit. The first charging unit electrostatically charges a surface of an image bearing member that comes into contact with a medium onto which an image is to be ultimately transferred. The first charging unit is disposed in correspondence with an entire region of the image bearing member in a first scanning direction. The second charging unit is disposed in an overlapping region where a non-passing region of a small-width medium and a passing region of a maximum-usable-width medium overlap when viewed in the first scanning direction. The small-width medium has a width smaller than a maximum usable width of the maximum-usable-width medium. The second charging unit electrostatically charges the overlapping region.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: September 17, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kazuyasu Ohazama
  • Patent number: 10401766
    Abstract: An image forming apparatus includes a fixing rotator rotatable in a predetermined direction of rotation, over which a recording medium is conveyed, and a heater to heat the fixing rotator. A temperature detector detects a temperature of the fixing rotator. A controller performs a primary productivity control to define a primary productivity rate of printing per unit time based on the temperature of the fixing rotator that is detected by the temperature detector. The controller calculates an amount of power suppliable to the heater and performs a secondary productivity control simultaneously with and separately from the primary productivity control. The secondary productivity control defines a secondary productivity rate of printing per unit time based on the amount of power suppliable to the heater. The controller selects one of the primary productivity rate and the secondary productivity rate whichever is lower as a productivity rate of the image forming apparatus.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 3, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Ryohhei Sugiyama, Hiroshi Ono, Hironori Yamaoka, Motoyoshi Yamano, Yoshikuni Sasaki, Tetsuo Tokuda
  • Patent number: 10359723
    Abstract: A fixing device has a fixing member, a pressing member, a pressing mechanism, a pressure changing mechanism, and a moving mechanism. The fixing member has a fixing belt. The pressing member forms a fixing nip portion by making contact with the fixing member. The pressing mechanism presses the pressing member against the fixing member to apply a nip pressure to the fixing nip portion. The pressure changing mechanism changes the nip pressure. The moving mechanism moves the fixing member in a sheet width direction which is perpendicular to a sheet conveying direction. The pressing mechanism has a holding member rotatably holding the pressing member and held swingably in such directions as to approach and recede from the fixing member. The moving mechanism moves the fixing member in the sheet width direction in coordination with the nip pressure being applied or removed by the pressure changing mechanism.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 23, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Takehiro Sato
  • Patent number: 10308457
    Abstract: A capacitive sensing system based on projected self-capacitance is suitable for use in printing systems/products to sense paper tray status. In example embodiments, a capacitive sensing system is adapted for sensing the condition/characteristics of paper in the paper tray, such as paper size, stack height and page count and paper dielectric. The capacitive sensing system can be configured with one or more shielded capacitive sensors incorporated into the paper tray, and oriented relative to the paper according to the paper condition/characteristic sensed.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 4, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Evgeny Fomin, Alfred Gomes, Domenico Granozio, Matthew Christopher Kessler, Scott D. Kulchycki
  • Patent number: 10300712
    Abstract: A drying device includes a heater, a supporter, a controller, and a temperature detector. The heater heats a medium. The supporter is disposed opposite the heater to support the medium. The controller turns on the heater while the medium is conveyed, and turns off the heater when the medium is stopped. The temperature detector detects a temperature of the supporter. The controller is connected to the temperature detector to turn off the heater when the temperature detected with the temperature detector is a predetermined temperature or higher.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: May 28, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Wataru Sakamoto, Ken Onodera, Toshihiro Yoshinuma
  • Patent number: 10289056
    Abstract: When executing a job which is a series operations for forming images on a single or a plurality of transfer materials and outputting the transfer material(s), started by a start instruction, a control device switches a polarity of a voltage applied by a first transfer power source in response to a switching of a polarity of a voltage applied by a charging power source, and switches a voltage applied by a second transfer power source from a first voltage to a second voltage which is larger in absolute value than the first voltage.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: May 14, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yu Izaki, Tomoaki Nakai, Yusaku Iwasawa, Takamitsu Soda
  • Patent number: 10281855
    Abstract: An image forming apparatus includes an image fixing unit to pass a sheet carrying an unfixed toner image on a first side. The image fixing unit includes: a first fixing section adjacent to the first side of the sheet; a first heating section to heat the first fixing section; a second fixing section adjacent to a second side opposite to the first side of the sheet; and a second heating section to heat the second fixing section. The image forming apparatus further includes: sheet feeding trays holding sheets; a storage unit storing fixing temperatures of the fixing sections preset for each type of the sheets in the sheet feeding trays; and a controller to select standby temperatures from the fixing temperatures, based on temperature profiles of the fixing sections, and to instruct the heating sections to respectively maintain the fixing sections at the selected standby temperatures during a standby mode.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: May 7, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Taizou Oonishi, Toru Komatsu
  • Patent number: 10274876
    Abstract: A fusing apparatus includes a substrate having a first surface and a second surface, the second surface being opposite the first surface on the substrate, a first resistive trace and a second resistive trace, the first and second resistive traces being disposed adjacent each other along the first surface of the substrate in a length-wise direction thereof. A resistance of the first resistive trace is less than a resistance of the second resistive trace.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: April 30, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Jichang Cao, Alexander Johannes Geyling, Russell Edward Lucas
  • Patent number: 10268153
    Abstract: An image forming apparatus includes an image forming unit including an image carrier, a developing device that includes a developer containing a toner, and a cleaning device including a blade; and a transfer device. The toner contains toner particles having a volume-average particle size of 3 ?m or more and 5 ?m or less, a spherical inorganic external additive having a number-average particle size of 80 nm to 200 nm, and an organic component. In the cleaning device, an external additive residue in or near a contact region between the image carrier and the blade contains the organic component and an inorganic component, the area ratio of the organic component to the inorganic component is 3/7 or more and 7/3 or less, and the area ratio of the inorganic component that is spherical to the external additive residue is 30% or more.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 23, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Makoto Kamisaki, Manabu Furuki, Naoki Ota, Tatsuhiro Igarashi, Yasuhisa Morooka, Jun Sekiya
  • Patent number: 10261459
    Abstract: An image forming apparatus includes a transfer unit, a container, and a calculator. The transfer unit transfers to at least one recording medium at least one toner image formed in accordance with image data without margins set along edges of the at least one recording medium. The container contains toner collected from the transfer unit. The calculator calculates an amount of the toner of parts of the at least one toner image outside the edges of the at least one recording medium. A time period during which the container is able to be used is calculated in accordance with an accumulated amount of the toner calculated by the calculator.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 16, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiro Katahira, Yoshinori Takahashi, Yasuto Okabayashi
  • Patent number: 10234805
    Abstract: An image forming apparatus includes an image forming unit, a transmission unit, a reception unit, a control unit configured to obtain a time period until the reception unit receives a first ultrasonic wave via a first recording material and an amplitude value thereof at a reference temperature, obtain a time period until the reception unit receives a second ultrasonic wave via a second recording material and an amplitude value thereof at a different temperature, control an image formation condition for forming the image on the first recording material on the basis of the amplitude value of the first ultrasonic wave, obtain a difference time period between reception of the first and second ultrasonic waves, and control an image formation condition for forming the image on the second recording material on the basis of the difference time period and the amplitude value of the second ultrasonic wave.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 19, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuhei Watanabe, Tsutomu Ishida
  • Patent number: 10152006
    Abstract: A fixing device includes a rotatable endless belt formed into a loop and a heater disposed opposite the endless belt to heat the endless belt. A nip formation pad is disposed inside the loop formed by the endless belt. The nip formation pad includes a metallic thermal equalizer extending in an axial direction of the endless belt. A rotatable pressure rotator presses against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. The pressure rotator includes an increased tackiness portion disposed at a lateral end of the pressure rotator in an axial direction of the pressure rotator to transmit a driving force to the endless belt. The increased tackiness portion is disposed opposite the thermal equalizer of the nip formation pad.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: December 11, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasunori Ishigaya, Yutaka Ikebuchi, Kazuya Saito, Keitaro Shoji, Ryohei Matsuda, Hiromasa Takagi, Ryuuichi Mimbu, Toshihiko Shimokawa
  • Patent number: 10115043
    Abstract: A computer communicably coupled to an image forming apparatus sends paper information specified for a print job, and a print setting information that is used when the paper information does not match any one of a plurality of paper information of the paper set in a plurality of trays of the image forming apparatus. A processor of the image forming apparatus determines the paper on which an image specified for the print job is formed based at least in part on the paper information specified for the print job, the plurality of paper information of the paper set in the plurality of trays and the print setting information.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 30, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Nozomi Sawada
  • Patent number: 10108119
    Abstract: An image forming apparatus includes a sheet transport path, a toner image transfer section along the sheet transport path at which a toner image is transferred to a sheet conveyed along the sheet transport path, a heating unit downstream from the toner image transfer section in a sheet transporting direction, the heating unit having a plurality of heating members arranged along a sheet width direction, and a control unit. The control unit is configured to determine locations of end portions of a label on the sheet in the sheet width direction, and during heating of the sheet by the heating unit, control heating members at locations facing the end portions of the label to generate less heat than the one or more of the other heating members.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: October 23, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Isao Yahata
  • Patent number: 10088781
    Abstract: An image forming apparatus includes a transfer member configured to abut against an image carrier for carrying a toner image to form a transfer nip; and a power supply configured to output a bias voltage for transferring the toner image on the image carrier onto a recording medium nipped in the transfer nip. The bias voltage includes a first voltage for transferring the toner image from the image carrier onto the recording medium in a transfer direction and a second voltage having an opposite polarity of the first voltage, the first and the second voltages being alternately output. A time-averaged value of the bias voltage is set to a polarity in the transfer direction and is set in the transfer direction side with respect to a median between a maximum and a minimum of the bias voltage.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: October 2, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinya Tanaka, Naomi Sugimoto, Haruo Iimura, Shinji Aoki, Yasuhiko Ogino, Kazuchika Saeki, Keigo Nakamura
  • Patent number: 10061253
    Abstract: An image forming apparatus includes an image forming section, a primary conveyance section, a first diverging section, a sorting ejection section, a secondary conveyance section, and a housing. The first diverging section is located downstream of the image forming section in a paper conveyance direction in the primary conveyance section. The secondary conveyance section diverges from the primary conveyance section at the first diverging section. The sorting ejection section sorts and ejects the paper conveyed thereto by the secondary conveyance section. The housing constitutes an apparatus main body and houses the image forming section, the primary conveyance section, the first diverging section, and part of the secondary conveyance section. One side wall of a plurality of side walls of the housing has an opening. The secondary conveyance section conveys the paper to a proximal end of the sorting ejection section through the opening.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 28, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroyuki Harada
  • Patent number: 10015328
    Abstract: A sheet management apparatus includes a storing unit, an obtaining unit, and a setting unit. The storing unit stores a combination of first attribute information and second attribute information of sheets. The obtaining unit obtains, from the storing unit, the second attribute information stored in combination with the first attribute information, based on the first attribute information of sheets used in a job. The setting unit sets the second attribute information obtained by the obtaining unit, as attribute information of sheets stored a sheet holding unit.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukiyoshi Hikichi
  • Patent number: 10012940
    Abstract: An image formation apparatus includes: a process device that forms a developer image; a transfer device that transfers the developer image formed by the process device onto a recording medium; a voltage applier that applies a voltage to the transfer device; and a voltage controller that acquires information on a width of the recording medium in a direction orthogonal to a medium conveyance direction, and controls the voltage applied by the voltage applier to the transfer device based on the width of the recording medium.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: July 3, 2018
    Assignee: Oki Data Corporation
    Inventors: Hiroshi Miura, Tetsuya Sato
  • Patent number: 9996038
    Abstract: An image forming apparatus includes an image bearing member configured to bear a toner image formed using a liquid developer containing toner particles and a carrier liquid, a transfer member, an input portion into which information on a kind of a recording material is inputted, an adjusting device configured to adjust an amount of the carrier liquid of the toner image, and an executing portion configured to execute an operation of the adjusting device depending on the information when the toner image is in the adjusting position. The executing position executes either of a plurality of operations including a first operation in which the amount of the carrier liquid of the toner image is increased, a second operation in which the amount of the carrier liquid is decreased, and a third operation in which the amount of the carrier liquid is not adjusted.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: June 12, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shohei Okumura
  • Patent number: 9989906
    Abstract: A control unit is configured to control torque of a fixing motor and torque of a pressing motor such that tangential force at a part holding paper in cooperation with a fixing member in a pressing member is equal to or greater than tangential force at a part holding paper in cooperation with the pressing member in the fixing member, and that the relation between the tangential force at the part of the pressing member and the tangential force at the part of the fixing member changes in accordance with the smoothness of paper.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: June 5, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Naoki Yoshie, Chiaki Yamada, Toru Kikuchi
  • Patent number: 9989893
    Abstract: An image forming apparatus includes a controller configured to compare a threshold value and an output value corresponding to an intensity of light reflected from a detection image, and to detect a color misregistration amount based on a comparison result; an update unit configured to update the threshold value based on a previous output value corresponding to the intensity of the light reflected from the detection image; and an adjustment unit configured to adjust an emission intensity of the light emitting element. The update unit updates, in a case when the emission intensity is adjusted, the threshold value based on the previous output value, a previous emission intensity, and the emission intensity adjusted by the adjustment unit.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: June 5, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shun Takahashi