Patents Examined by Hoan H. Tran
  • Patent number: 11927894
    Abstract: An image forming apparatus includes first and second image bearing members and first and second developing members. The controller controls to execute first and second controls based on image information in a case that the first developing member is separated from the first image bearing member when an operation in which the image is sequentially transferred to a transferred member from the first and second image bearing members is terminated. The first developing member is started to separate from the first image bearing member in the first control after an end of an image forming area on the first image bearing member in a moving direction passes through the first transfer position, and in the second control after the end of the image forming area on the first image bearing member in the moving direction passes through the developing position and before the end of the image forming area reaches the first transfer position.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: March 12, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Kume, Satoshi Nishida, Isamu Takeda, Takanori Mitani
  • Patent number: 11927900
    Abstract: A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force, an entrance guide, an exit guide, and a transmission. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The transmission transmits a displacement of the pressure plate to the entrance guide and the exit guide.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: March 12, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshio Ogiso, Tamotsu Ikeda
  • Patent number: 11930576
    Abstract: An image forming device includes an LED head, a main controller board and an LED controller board. The main controller board comprises a main controller, a voltage output circuit, a first voltage terminal, a second voltage terminal. The voltage output circuit outputs a first voltage via the first voltage terminal and the second voltage via the second voltage terminal. The LED controller board includes a third voltage terminal, a fourth voltage terminal and an LED controller. The third voltage terminal is connected to the first voltage terminal, and the fourth voltage terminal is connected to the second voltage terminal. The LED controller board outputs a voltage according to the first voltage to the LED head. The LED controller is connected to the fourth voltage terminal. A voltage according to the second voltage is input to the LED controller.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: March 12, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Masato Sueyasu
  • Patent number: 11927905
    Abstract: In response to detecting that a remaining supply of print material of a first cartridge has reached a first threshold, a printing device transmits a request. In response to detecting that a second cartridge has replaced the first cartridge, the printing device determines whether the remaining supply had reached a second threshold and whether a token permitting usage of the second cartridge was received responsive to the request. In response to determining that the remaining supply had reached the second threshold and that the token was received, the printing device prints with print material from the second cartridge.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: March 12, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey H. Luke, Gabriel S. McDaniel, Scott K Hymas
  • Patent number: 11921456
    Abstract: An example image forming apparatus includes a frame, a first shaft supported by the frame, and a first coupler. The first coupler includes a body coupled to one end of the first shaft and a first protrusion protruding from the body in an axial direction of the first shaft, the first protrusion having a first surface and a second protrusion protruding from the first surface. The second protrusion is to lock with a groove to mount a cartridge on the frame, the first shaft is to provide a rotational force in a first rotational direction to rotate the second protrusion of the first coupler and to insert the second protrusion into the groove to lock with the cartridge, and the first surface of the first protrusion of the first coupler is to contact a second surface to transmit the rotational force to the second coupler in the first rotational direction.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: March 5, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Pil-Seung Oh, Taeil Jung, Tae-Hee Kim, Chang-Woo Lee
  • Patent number: 11921452
    Abstract: An image forming apparatus includes an image forming unit to form an image on a sheet based on a mode selected from a plurality of modes having different image forming speeds, a memory to store first data for a first mode included in the plurality of modes, the first data indicating a correspondence for the first mode between a type of the sheet and the image forming speed, and second data for a second mode included in the plurality of modes, the second data indicating a correspondence for the second mode between a type of the sheet and the image forming speed, and a display. A controller determines a first image forming speed for the first mode from the first data based on the type of the sheet, and determines a second image forming speed for the second mode from the second data.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: March 5, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kiyoharu Kakomura, Takuya Machida, Masashi Yokoyama, Itsuki Nishida
  • Patent number: 11921451
    Abstract: An image forming apparatus connected to a user terminal includes: an apparatus side connecting part; a connection detecting part; an apparatus side mode switching part; and an apparatus side mode setting part. The apparatus side connecting part connects to the user terminal and outputs connection information. The connection detecting part detects whether or not the apparatus side connecting part is connected to the user terminal based on the connection information and outputs detection information. The apparatus side mode switching part outputs, based on the detection information, mode information indicating a mode to which a consumption amount of a resource consumed by the image forming apparatus is allocated. The apparatus side mode setting part sets, based on the mode information, an energy saving mode in which the consumption amount is reduced as compared with the consumption amount when the apparatus side connecting part and the user terminal are connected.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: March 5, 2024
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Shinichi Tajima
  • Patent number: 11921444
    Abstract: A belt unit, for use in an image forming apparatus, includes an endless belt that moves in a movement direction, a transfer member, a collecting member, a storage container, and a conveyance member. The conveyance member conveys toner in a conveyance direction, rotates about a rotational axis extending in a rotational axis direction, includes a shaft and a conveyance portion provided on a shaft outer surface, and has a helical shape having a helical axis extending in the rotational axis direction. The conveyance member further includes a protruding portion protruding from the shaft outer surface in a direction crossing the conveyance member rotational axis, which has a shape different from the helical shape, and which is provided on a shaft portion downstream of the conveyance portion in the conveyance direction. The rotational axis direction is a direction crossing both the endless belt movement direction and a transfer member longitudinal direction.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: March 5, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norihiro Matsumoto, Yuichiro Inaba, Akinori Mitsumata
  • Patent number: 11899381
    Abstract: An image forming apparatus includes a detachable unit that is attachable to and detachable from an apparatus main body; and a cleaning unit that is provided in the apparatus main body, and at the time of attachment or detachment of the detachable unit, comes into contact with a grip portion of the detachable unit to clean a floating substance adhered to the grip portion, the floating substance being in the apparatus main body.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: February 13, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Yusuke Sakai
  • Patent number: 11896338
    Abstract: A medical device drive system can include a rotational input, a coupling member engaged with the rotational input, a first gear having an engagement feature sized and shaped to engage with the coupling member, and a second gear coupled with the first gear, the second gear coupled to a movable element. The system can have a first system state and a second system state. In the first system state the coupling member is not engaged with the engagement feature and the first gear rotates without moving the coupling member. In the second system state the coupling member is engaged with the engagement feature of the first gear and rotation of the rotational input turns the coupling member, the first gear, and the second gear to move the movable element.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: February 13, 2024
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Nicholas H. Ragosta, Matthew A. Wixey
  • Patent number: 11892798
    Abstract: An image forming apparatus includes: a housing; drum cartridge attachable to the housing; a toner cartridge attachable to the drum cartridge at an attachment position; and a contacting portion positioned at a side wall of the housing positioned at one end thereof in a first direction. The drum cartridge includes a photosensitive drum and a drum frame. The toner cartridge includes a toner casing, a toner memory, a memory holder holding the toner memory, and a memory holder cover movably holding the memory holder. The memory holder cover has a protrusion protruding in a direction crossing the first direction. In a case where the drum cartridge is to be attached to the housing while the toner cartridge is lifted up from the drum frame than the attachment position, the protrusion is configured to contact the contacting portion to move the toner cartridge to the attachment position from the lifted-up position.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: February 6, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Ryuji Noda, Keita Shimizu
  • Patent number: 11886143
    Abstract: A sheet laminator laminates a two-ply sheet and a sheet-shaped medium inserted in the two-ply sheet. The sheet laminator includes a sheet feeder, a multi-feeding detector, a fixing device, an ejection device, a purging portion, a passage switcher, and circuitry. The sheet feeder feeds the two-ply sheet. The multi-feeding detector detects multiple feeding of the two-ply sheet. The fixing device fixes the two-ply sheet by application of heat and pressure. The ejection device ejects the two-ply sheet that has been fixed by the fixing device. The purging portion is disposed at a position different from the ejection device. The passage switcher switches a conveyance passage of the two-ply sheet to the fixing device or to the purging portion. The circuitry conveys the two-ply sheet to the purging portion and retries sheet feeding with another two-ply sheet, in response to detection of multiple feeding of the two-ply sheet.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: January 30, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Sugiyama, Tomohiro Furuhashi, Wataru Takahashi, Ruki Midorikawa, Shinya Monma, Sho Asano
  • Patent number: 11886140
    Abstract: An information processing apparatus can communicate with an image forming apparatus that forms an image on a sheet. The information processing apparatus includes: an acquisition unit configured to acquire error information about an error that has occurred in the image forming apparatus, and maintenance information about maintenance work performed on the image forming apparatus; a memory configured to store a plurality of pieces of error information acquired by the acquisition unit; and a controller. The controller is configured to: determine, from the plurality of pieces of error information stored in the memory, based on the maintenance information, first error information about an error that has occurred during the maintenance work; and determine an error part of the image forming apparatus based on second error information obtained by excluding the first error information from the plurality of pieces of error information stored in the memory.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: January 30, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinya Suzuki
  • Patent number: 11880158
    Abstract: A drawer is moveable between an inner position and an outer position through an opening when a cover is located at an opening position. A waste toner conveying tube is movable in a second direction between a first connection position and a first disconnection position when a drum cartridge is attached to a drawer and the drawer is at the inner position. When the cover moves from a closing position toward the opening position, the waste toner conveying tube moves from the first connection position toward the first disconnection position in conjunction with the movement of the cover. The drawer is movable from the inner position toward to the outer position when the drum cartridge is attached to the drawer, the drawer is at the inner position, and the waste toner conveying tube is at the first disconnection position.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: January 23, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shougo Sato, Masato Makino
  • Patent number: 11872821
    Abstract: A printable liquid supply cartridge includes a printable liquid reservoir extending between a first side and a second side, and between a front end and a rear end. The front end includes a printable liquid outlet to receive a first fluid pen and a gas inlet, above the printable liquid outlet, to receive a second fluid pen. The front end also includes an interface support at the first side, the support having an I2C data interface that includes electrical connection pads exposed on an interior side of the support to face from the first side towards the second side, the electrical connection pads being arranged vertically and to make contact with the printer data interface at least partially inserted into the second portion.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: January 16, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Anthony D. Studer, David Olsen
  • Patent number: 11868081
    Abstract: An image forming apparatus includes: a main frame; a developing cartridge including a casing, a storage medium having an electrical contact surface, and developing roller; a photosensitive drum contactable with the developing roller; an electrical connector contactable with the electrical contact surface; a separation mechanism; and a controller configured to communicate with the storage medium via the electrical connector. The separation mechanism is configured to move the casing relative to the main frame in a separating direction in which the developing roller separates from the photosensitive drum. The controller is configured to perform: moving, by controlling the separation mechanism, the casing relative to the main frame in the separating direction; determining, in response to performing the moving, whether communication with the storage medium is established; and outputting, when determining in the determining that the communication with the storage medium is not established, an error.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: January 9, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tadao Kyotani, Nao Itabashi
  • Patent number: 11860559
    Abstract: There are provided a temperature sensor that has following capability to a temperature measurement object and has excellent responsiveness, and a temperature detection device and an image forming apparatus each including the temperature sensor. A temperature sensor used in contact with a temperature measurement object, includes: a thermosensitive element configured to detect a temperature of the temperature measurement object; a heat collection member including an abutting portion configured to abut on the temperature measurement object, and configured to be thermally joined with the thermosensitive element; and a holding member including a housing portion configured to house the heat collection member. The heat collection member is swingably held by the holding member, to maintain a state where the abutting portion abuts on the temperature measurement object.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: January 2, 2024
    Assignee: SHIBAURA ELECTRONICS CO., LTD.
    Inventors: Hiroki Miyazaki, Morihisa Hamada, Yuki Ishii, Yuri Okada, Ryota Murakoshi
  • Patent number: 11852996
    Abstract: Systems, apparatuses, and methods of fluid delivery for liquid electrophotography printing. A fluid delivery apparatus includes a charged ink source, a supplemental fluid source, a working suspension tank in fluid communication with the charged ink source and the supplemental fluid source, a sensor, and an optical density control unit. The charged ink source is to store a charged ink mixture including charge directors and toner particles. The supplemental fluid source is to store a supplemental fluid including imaging oil. The working suspension tank is to store a working suspension mixture including the charge directors, the toner particles, and the imaging oil. The sensor is to monitor an optical density of print output of the liquid electrophotography printing apparatus. The optical density control unit is to determine whether to supply an uncharged ink mixture to the working suspension tank in response to the monitored optical density indicating electrical fatigue.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: December 26, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eyal Bachar, Gil Bar-Haim, Albert Teishev
  • Patent number: 11852989
    Abstract: A developing device includes first and second chambers, a partition wall, first and second feeding screws, a developing roller, a supplying roller, a first magnet including a first magnetic pole, a second magnet including second to fourth magnetic poles, and a guiding portion. With respect to a supplying roller rotational direction, in a position downstream of the third magnetic pole, a magnetic flux density of the fourth magnetic pole in a normal direction is 20% of a maximum value thereof is a first position positioned downstream of a second position where a line connecting a lowermost end of the guiding portion and a supplying roller center crosses an outer peripheral surface of the supplying roller, and upstream of a third position where a line connecting an uppermost end of the first feeding screw and the supplying roller center crosses the outer peripheral surface of the supplying roller.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: December 26, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Osamu Ariizumi
  • Patent number: 11852987
    Abstract: An image forming apparatus includes a rotatable photosensitive member, a charging member, an exposing unit to form an electrostatic latent image by exposing the surface of the photosensitive member charged by the charging member to light and, a developing member to develop the electrostatic latent image with toner. A controller controls so that a predetermined charging voltage is charged and the light is emitted by a low light quantity to a first non-print area, which is a non-print area provided in a region including the print area and the first non-print area with respect to a main scanning direction, and controls so that a charging voltage lower than the predetermined voltage is charged and exposure is not performed on a second non-print area, which is provided in a region including only the non-print area with respect to the main scanning direction.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: December 26, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isamu Takeda, Takanori Mitani, Satoshi Nishida, Takao Kume