Patents Examined by Sophia S. Chen
  • Patent number: 11226583
    Abstract: An image forming apparatus is provided. The image forming apparatus includes a main body frame, a developer cartridge detachably mounted on the main body frame, a driving gear deployed on one side of the main body frame to rotate in a first direction to drive the developer cartridge, and a locking member deployed between the driving gear and the developer cartridge to fix the developer cartridge in a locking position in which the developer cartridge is mounted on the main body frame, wherein the locking member is to move the developer cartridge to an unlocking position in which the developer cartridge is separated from the main body frame by a rotation of the driving gear in a second direction opposite to the first direction.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 18, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hanjun Lee, Younghoon Kim
  • Patent number: 11221582
    Abstract: A system for an electrophotographic image forming device includes a basket having a first side, a second side and a plurality of positioning slots extending between the first side and the second side, each positioning slot is configured to receive a corresponding toner cartridge. Each positioning slot includes a first latch at the first side of the basket and a second latch at the second side of the basket. Each of the first and second latches is independently pivotable between a latched position for applying a hold-down force on a respective end portion of a corresponding toner cartridge positioned in a corresponding positioning slot of the plurality of positioning slots to rigidly hold the corresponding toner cartridge against datums of the basket and an unlatched position to release the corresponding toner cartridge permitting removal of the corresponding toner cartridge from the basket.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: January 11, 2022
    Assignee: Lexmark International, Inc.
    Inventors: Mark William Amann, Brian Allen Blair, Brian Lester Boettcher, James Anthany Carter, II, Jie Chen, Benjamin Charles Devore, Darin Michael Gettelfinger
  • Patent number: 11221580
    Abstract: An image forming apparatus includes a first casing, a second casing, a support portion, an indication, and a USB port. The first casing includes a sheet discharge tray disposed at a top surface thereof. The indication is located at a portion of one of the top surface of the first casing and the support portion, and is positioned outside the sheet discharge tray in a width direction. The portion is located closer to one end of the image forming apparatus in the width direction than the other end of the image forming apparatus opposite to the one end in the width direction. The USB port is disposed at a portion of one of the second casing and the support portion closer to the one end than the other end in the width direction, and is located at a different position in an up-down direction from the indication.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 11, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yoshihiro Okamoto
  • Patent number: 11215940
    Abstract: An image forming system includes a toner container and an image forming apparatus, the toner container including a first toner containing portion, a container base portion having a discharge port for discharging toner, and a container shutter that is moved between open and closed positions and includes an engaged portion, wherein the image forming apparatus includes a main body base portion that detachably attaches the toner container and has a receiving port for receiving the toner and, a second toner containing portion, a movable member that is moved between first and second positions and includes an engaging portion that engages with the engaged portion, a regulating member that is moved between a regulation position and a regulation release position, and an urging member that urges the movable member to move from the first position to the second position when the regulating member is located at the regulation release position.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: January 4, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Munetsugu, Shohei Katsuya
  • Patent number: 11212413
    Abstract: A laser scanning unit (LSU) identification method and an image forming device are provided. The image forming device includes a processor and a target LSU, where the target LSU includes a laser diode, a laser diode drive unit, a polygon mirror, and a motor. The method includes providing a signal related to a quantity of reflective surfaces of the polygon mirror to the processor by the target LSU; identifying the quantity of the reflective surfaces of the polygon mirror of the target LSU according to the signal related to the quantity of the reflective surfaces of the polygon mirror provided by the target LSU, and determining a control parameter of the target LSU according to an identified quantity of the reflective surfaces by the processor, thereby controlling the target LSU according to the control parameter; and operating according to the control parameter by the target LSU.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: December 28, 2021
    Assignee: ZHUHAI PANTUM ELECTRONICS CO., LTD.
    Inventors: Zuliao Qin, Gang Wang, Xuan Tan
  • Patent number: 11209758
    Abstract: A printing device includes an applicator with which a test fluid is applied onto a recording medium to be printed to, as well as an absorption measurement system with which absorption data are acquired with regard to the absorption rate of the test fluid. The printing device also includes a fuser to fix a print image printed by the printing device. The fuser is adjusted depending on the acquired absorption data so that an optimal and/or desired fixing of print images on the respectively used type of recording medium is produced.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: December 28, 2021
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Christian Kopp, Georg Landmesser, Bernhard Hochwind
  • Patent number: 11209744
    Abstract: An image forming apparatus, having first, second, and third photosensitive drums, a first developing cartridge including a first developing roller, a second developing cartridge including a second developing roller, a third developing cartridge including a third developing roller, an exposure device, a conveyer, and a moving mechanism, is provided. The first developing roller, the second developing roller, and the third developing roller are arranged in the recited order from upstream to downstream in a moving direction for the sheet to be conveyed. When the second developing roller is at the separated position thereof, the second developing cartridge coincides with a light path of the laser beam for scanning the first photosensitive drum. When the third developing roller is at the separated position thereof, the third developing cartridge coincides with a light path of the laser beam for scanning the second photosensitive drum.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 28, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahito Saeki, Toshiyuki Sano, Shintaro Sakaguchi, Kotaro Haruta, Shoichiro Nishimura
  • Patent number: 11209766
    Abstract: A cleaning device includes a conveyance member, an agitation member, and an accommodation unit. The conveyance member extends in a width direction of an image bearing member orthogonal to a moving direction of the image bearing member, and conveys toner in the width direction by rotation. The accommodation unit includes a wall portion located inside a rotation orbit of an outermost peripheral portion of the agitation member, downstream of the collection member and upstream of the conveyance member in a rotation direction of the agitation member when viewed in a rotation axis direction of the conveyance member.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: December 28, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichiro Inaba, Norihiro Matsumoto, Shohei Ishio, Keisuke Ishizumi, Shinji Katagiri
  • Patent number: 11204565
    Abstract: A developing apparatus for use in an image forming apparatus includes a developing frame, a rotatable developing member, a regulation blade to regulate developer borne on a developing member surface, and a seal member to prevent developer from leaking outside the developing frame. The regulation blade includes a support plate, a plate-shaped member, and a regulation member. The seal member is fixed to a facing surface of the plate-shaped member, is arranged at a plate-shaped member end portion, is arranged side by side with the regulation member in a rotational axis direction, contacts an end surface of the regulation member, and is disposed between the plate-shaped member and the developing member in a direction intersecting with the rotational axis direction. The plate-shaped member is welded to a region of the support plate excluding a region outside the end surface of the regulation member in the rotational axis direction.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: December 21, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Kawakami, Yu Fukasawa, Yuji Kawaguchi
  • Patent number: 11199804
    Abstract: A metal frame of an image forming apparatus includes first and second sheet metal in which the first sheet metal includes a first engaging portion which is provided between first and second plate portions of the first sheet metal and is bent away from the first plate portion in the plate thickness direction of the first plate portion, wherein the first plate portion, the second plate portion, and the first engaging portion are formed integrally with each other. The second sheet metal includes a third plate portion with which the first engaging portion engages and a second engaging portion which is bent away from the third plate portion in a plate thickness direction of the third plate portion and engages with the first plate portion, wherein the second engaging portion is adjacent to the third plate portion.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: December 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiro Tomono, Takahiro Kobayashi, Ryota Yasui, Ken Swysen
  • Patent number: 11199796
    Abstract: An image forming apparatus includes an image forming device configured to form an image on a sheet, a first heater configured to generate heat to heat a first print region of the sheet, a second heater configured to generate heat to heat a second print region of the sheet, the second heater being adjacent the first heater in a main scanning direction, and a controller configured to control the first heater to generate heat and the second heater to not generate heat based on a distance in the main scanning direction from (a) an end of a region of the image that overlaps the second heater to (b) a boundary between the first heater and the second heater in a situation where the region overlaps the boundary.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: December 14, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yayoi Doi
  • Patent number: 11194287
    Abstract: A system for an electrophotographic image forming device includes a basket for holding multiple toner cartridges. A guide rail assembly operatively connected to an access door moves between a raised position and a lowered position to raise and lower the basket when the access door moves between an open position and a closed position. The basket is slidable along the guide rail assembly into and out of the image forming device when the guide rail assembly is in the raised position, and is in an operational position within the image forming device when the guide rail assembly is in the lowered position. A rail lock mechanism locks the access door in the open position when the guide rail assembly is in the raised position and the basket is extended out of the image forming device and unlocks the access door from the open position when the basket is inserted.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: December 7, 2021
    Assignee: Lexmark International, Inc.
    Inventors: Jie Chen, Benjamin Charles Devore, Michael James Shanor, Christopher Kent Washing
  • Patent number: 11193952
    Abstract: A circuit configured to sense an input analog signal generated by a sensor at a first frequency and to generate an output digital signal indicative of the sensed input analog signal. The circuit includes a conditioning circuit, an ADC, a feedback circuit, and a low-pass filter. The conditioning circuit is configured to receive the input analog signal and to generate a conditioned analog signal. The ADC is configured to provide a converted digital signal based on the conditioned analog signal. The feedback circuit includes a band-pass filter configured to selectively detect a periodic signal at a second frequency higher than the first frequency and to act on the conditioning circuit to counter variations of the periodic signal at the second frequency. The low-pass filter is configured to filter out the periodic signal from the converted digital signal to generate the output digital signal.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: December 7, 2021
    Assignee: STMicroelectronics S.r.l.
    Inventor: Marco Zamprogno
  • Patent number: 11194286
    Abstract: A system for an electrophotographic image forming device includes a basket insertable into and extendable out of the image forming device. The basket includes a plurality of positioning slots each configured to receive a corresponding toner cartridge of a plurality of toner cartridges. The basket includes a cartridge latching assembly configured to apply a hold-down force on each toner cartridge to rigidly hold each toner cartridge against corresponding datums of the basket. A basket latching assembly in the image forming device is configured to apply a hold-down force on the basket when the basket is inserted into the image forming device to rigidly hold the basket against corresponding datums of the image forming device for positioning the plurality of toner cartridges in respective operational positions within the image forming device with only the cartridge latching assembly of the basket directly applying hold-down forces on the plurality of toner cartridges.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: December 7, 2021
    Assignee: Lexmark International, Inc.
    Inventors: Mark William Amann, Brian Allen Blair, Brian Lester Boettcher, James Anthany Carter, II, Jie Chen, Benjamin Charles Devore, Darin Michael Gettelfinger, Michael James Shanor, Christopher Kent Washing
  • Patent number: 11194285
    Abstract: A system for an electrophotographic image forming device includes a basket including a plurality of positioning slots each including cartridge datum locators that position a plurality of toner cartridges relative to the basket. A first guide rail and a second guide rail, each movable between a raised position and a lowered position, raise and lower the basket when the first and second guide rails move between the raised and lowered positions. In the raised positions the first and second guide rails support the basket permitting the basket to slide along the first and second guide rails into and out of the image forming device. When the first and second guide rails are in the lowered positions basket datum locators within the image forming device support the basket and position the basket relative to the image forming device in order to position the toner cartridges relative to the image forming device.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: December 7, 2021
    Assignee: Lexmark International, Inc.
    Inventors: Brian Allen Blair, Jie Chen, Benjamin Charles Devore, Darin Michael Gettelfinger, Michael James Shanor, Christopher Kent Washing
  • Patent number: 11188008
    Abstract: An image forming apparatus includes: a developing cartridge including a casing, a first electrical contact surface, and a holder movable relative to the casing; a drum cartridge including a drum frame, a second electrical contact surface, and a holder movable relative to the drum frame; and a main frame having an opening and including first and second guide frames facing in a facing direction, a first main electrical contact capable of being electrically connected to one of the first and second electrical contact surfaces, and a second main electrical contact positioned closer to the opening in an attachment direction and capable of being electrically connected to the remaining one of the first and second electrical contact surfaces. A distance in the facing direction between the first and second guide frames is reduced as the first and second guide frames extend toward the first main electrical contact in the attachment direction.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: November 30, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shinya Kusuda, Yasuo Fukamachi
  • Patent number: 11181851
    Abstract: A developer supply container 1 is detachably mountable to a developer receiving apparatus including a developer receiving portion 11 provided with a receiving port 11a for receiving a developer, a portion-to-be-engaged 11b a displaceable integrally with the developer receiving portion 11. The developer supply container 1 includes an engaging portion 30 and a discharging portion provided with a shutter opening 4j for discharging the developer accommodated in a developer accommodating portion. The engaging portion 30 is provided at only one side with respect to a predetermined direction crossing with a mounting direction of the developer supply container 1 in the crossing with a displacing direction of the developer receiving portion 11. The engaging portion 30 engages with the portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to bring the receiving port 11a in the communication with the shutter opening 4j.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuya Murakami, Ayatomo Okino
  • Patent number: 11175621
    Abstract: A toner cartridge according to one embodiment includes a body having a reservoir for storing toner and a rotatable developer roll mounted on the body and in fluid communication with the reservoir. A portion of an outer surface of the developer roll is exposed along a front of the body for supplying toner from the reservoir to a corresponding photoconductive drum on an imaging unit when the toner cartridge is installed on the imaging unit in an operative position of the toner cartridge relative to the imaging unit. A first engagement member positioned on a rear of the body is configured to engage a corresponding second engagement member on the imaging unit when the toner cartridge is installed on the imaging unit to retain the toner cartridge in a storage position of the toner cartridge relative to the imaging unit with the developer roll spaced away from the photoconductive drum.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: November 16, 2021
    Assignee: Lexmark International, Inc.
    Inventors: Gregory Alan Cavill, Randal Scott Williamson
  • Patent number: 11174930
    Abstract: A drive force transmission mechanism includes a drive pulley, a driven pulley and an endless belt. The endless belt is wound around the drive pulley and the driven pulley and transmits a rotation of the drive pulley to the driven pulley. At least one of the drive pulley and the driven pulley has a protruding part protruding outwardly in a radial direction around an outer circumferential face of the drive pulley or the driven pulley. The belt is a nonmagnetic metal belt having an outer circumferential face and an inner circumferential face. The outer circumferential face has a surface roughness smaller than a surface roughness of the inner circumferential face.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 16, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Akihiro Yamaguchi
  • Patent number: 11175607
    Abstract: Examples of an output assembly for a print particle replenishment device are described herein, Some examples of the output assembly include a sliding member. For example, the sliding member includes a channel that is offset from a rotating axis of the output assembly and a notch that is offset from the rotating axis and that extends to an outer edge of the sliding member. Some examples of the output assembly include a cover member to maintain a static position with respect to a rotation of the sliding member. In some examples, the cover member includes an alignment structure that is offset from the rotating axis of the output assembly.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 16, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Andy Philip Chick, Pratik Pravinkumar Shah, Min-Chul Lee, Ji-won Moon, Matthew James Storey, Zackary Thomas Hickman, Corbett Benjamin Schoenfelt, Bennett Alexander Nadeau, Jefferson Blake West