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1. 发明授权

US11619908B2 Cartridge 有权
公开(公告)号：US11619908B2
公开(公告)日：2023-04-04
申请号：US17718401
申请日：2022-04-12
申请人： CANON KABUSHIKI KAISHA
发明人： Akinobu Hirayama , Takahito Ueno , Toshiaki Takeuchi
IPC分类号： G03G21/18 , G03G21/10
摘要： A cartridge includes a frame and a photosensitive drum rotatably supported by the frame. An opening is provided in the cartridge, with toner removed from the photosensitive drum being discharged to outside of the cartridge through the opening. A discharging passageway is provided in fluid communication with the opening and through which toner can move to the opening. A coupling member is provided inside the discharging passageway, with the coupling member including a projection at an end of the coupling member, and the coupling member being movable along the discharging passageway between a first position and a second position.

2. 发明授权

US11204582B2 Cartridge and image forming apparatus 有权
公开(公告)号：US11204582B2
公开(公告)日：2021-12-21
申请号：US16918010
申请日：2020-07-01
申请人： CANON KABUSHIKI KAISHA
发明人： Akinobu Hirayama , Takahito Ueno , Toshiaki Takeuchi
IPC分类号： G03G21/18 , G03G21/10 , G03G15/08 , G03G21/00 , G03G21/12 , G03G21/16
摘要： A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.

3. 发明授权

US11156956B2 Rotational force transmitting part 有权
公开(公告)号：US11156956B2
公开(公告)日：2021-10-26
申请号：US17076968
申请日：2020-10-22
申请人： CANON KABUSHIKI KAISHA
发明人： Takahito Ueno , Shigeo Miyabe , Masanari Morioka , Masato Hisano
IPC分类号： G03G15/00 , G03G21/18
摘要： A device for transmitting a rotational force to an electrophotographic photosensitive drum includes a flange connectable to the photosensitive drum and having a rotational axis, a hollow portion, and a force receiving surface, a pin configured to transmit the rotational force to the flange, and a coupling member the coupling member including a shaft shaped portion extended along a rotational axis of the coupling member and including a through-hole portion. When the pin and at least a part of the shaft shaped portion of the coupling member are accommodated in the hollow portion of the flange and the pin contacts the force receiving surface, the pin is capable of transmitting the rotational force received from the coupling member to the flange.

4. 发明授权

US10962926B2 Cartridge 有权
公开(公告)号：US10962926B2
公开(公告)日：2021-03-30
申请号：US16804762
申请日：2020-02-28
申请人： CANON KABUSHIKI KAISHA
发明人： Akinobu Hirayama , Takahito Ueno , Toshiaki Takeuchi
IPC分类号： G03G21/18 , G03G21/10
摘要： A rotational force is transmitted to a main assembly side feeding member for feeding the toner into a main assembly side toner accommodating portion from a coupling member provided on a cartridge.
The cartridge includes a photosensitive drum, a discharge opening configured to discharge the toner removed from the photosensitive drum toward the main assembly side feeding member, and a coupling member configured to transmit the rotational force to the main assembly side feeding member. The coupling member is movable between a first position for transmitting the rotational force to the main assembly side feeding member and a second position retracted from the first position.

5. 发明授权

US10935926B2 Cartridge, process cartridge, and image forming apparatus 有权
公开(公告)号：US10935926B2
公开(公告)日：2021-03-02
申请号：US16782520
申请日：2020-02-05
申请人： CANON KABUSHIKI KAISHA
发明人： Toshiaki Takeuchi , Takahito Ueno , Yuuki Nakamura , Kensuke Suzuki
IPC分类号： G03G21/16 , G03G21/18
摘要： A technique enabling downsizing of an image forming apparatus is provided. A cleaning unit 13 attachable to and detachable from an apparatus main body of an image forming apparatus 100 that forms an image on a recording material 12 is provided, with this cleaning unit 13 including: a photosensitive drum 1; and a cleaning frame body 14 that supports the photosensitive drum 1 and that includes an opening 14c through which laser light 3c for exposing the photosensitive drum 1 can pass, wherein the opening 14c is configured such that a width of the opening 14c in a scanning direction in an irradiation range of the light for exposing the photosensitive drum 1 becomes greater toward a side of the photosensitive drum 1 from a side of a light source of light for exposing the photosensitive drum 1.

6. 发明授权

US10795312B2 Electrophotographic image forming apparatus, developing apparatus, and coupling member 有权
公开(公告)号：US10795312B2
公开(公告)日：2020-10-06
申请号：US16845164
申请日：2020-04-10
申请人： CANON KABUSHIKI KAISHA
发明人： Masanari Morioka , Shiego Miyabe , Takahito Ueno
IPC分类号： G03G21/18 , G03G15/01 , F16D1/10 , F16D3/04 , G03G15/08 , G03G21/16
摘要： A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for transmitting the rotating force received through the rotating force receiving portion to the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller, a pre-engagement angular position which is taken before the coupling member is engaged with the rotating force applying portion and in which the coupling member is inclined away from the rotational force transmitting angular position, and a disengaging angular position which is taken for the coupling member to disengage from the driving shaft and in which the coupling member is inclined away from the rotational force transmitting angular position in a direction opposite to the pre-engagement angular position; wherein in response to a movement of the developing device when the movable member moves in the one direction, the coupling member moves from the pre-engagement angular position to the rotational force transmitting angular position to be opposed to the driving shaft, and wherein when the movable member makes a further movement in the one direction from a position where the coupling member is opposed to the driving shaft, in response to the further movement, the coupling member is disengaged from the driving shaft by moving from the rotational force transmitting angular position to the disengaging angular position.

7. 发明授权

US10788789B2 Electrophotographic image forming apparatus, developing apparatus, and coupling member 有权
公开(公告)号：US10788789B2
公开(公告)日：2020-09-29
申请号：US16413924
申请日：2019-05-16
申请人： CANON KABUSHIKI KAISHA
发明人： Masanari Morioka , Shiego Miyabe , Takahito Ueno
IPC分类号： G03G21/18 , G03G15/01 , F16D1/10 , F16D3/04 , G03G15/08 , G03G21/16
摘要： An image forming apparatus cartridge includes a developer roller having an axis L1 and a coupling member having an axis L2. The coupling member includes a first end portion operatively connected to the developer roller, a second end portion, and a connecting portion connecting the first end portion and the second end portion. The image forming apparatus cartridge also includes an urging member that biases the coupling member. The coupling member is movable between a first position in which the axis L2 of the coupling member is substantially parallel to and offset from the axis L1 of the developer roller, and a second position in which the axis L2 of the coupling member is fully inclined with respect to the axis L1 of the developing roller, and the urging member biases the coupling member to the second position.

8. 发明授权

US10627778B2 Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit 有权
公开(公告)号：US10627778B2
公开(公告)日：2020-04-21
申请号：US16421683
申请日：2019-05-24
申请人： CANON KABUSHIKI KAISHA
发明人： Takahito Ueno , Shigeo Miyabe , Masanari Morioka , Masato Hisano
IPC分类号： G03G21/18 , G03G15/00 , G03G21/16
摘要： A process cartridge, a combination of a process cartridge and a drive shaft of an electrophotographic image forming apparatus, and a method of mounting and using a process cartridge in an electrophotographic image forming apparatus include a feature wherein a coupling member of the process cartridge can take different angular positions relative to the drive shaft's fixed axis of rotation. In one position, an axis of the coupling member is inclined relative to the drive shaft's fixed axis of rotation. In a second position, the axis of the coupling member is substantially coaxial with the drive shaft's fixed axis of rotation.

9. 发明申请

US20200012231A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, DEVELOPING APPARATUS, AND COUPLING MEMBER 审中-公开
公开(公告)号：US20200012231A1
公开(公告)日：2020-01-09
申请号：US16574433
申请日：2019-09-18
申请人： CANON KABUSHIKI KAISHA
发明人： Masanari Morioka , Shiego Miyabe , Takahito Ueno
IPC分类号： G03G21/18 , G03G15/01 , F16D1/10 , F16D3/04 , G03G15/08 , G03G21/16
摘要： A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for transmitting the rotating force received through the rotating force receiving portion to the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller, a pre-engagement angular position which is taken before the coupling member is engaged with the rotating force applying portion and in which the coupling member is inclined away from the rotational force transmitting angular position, and a disengaging angular position which is taken for the coupling member to disengage from the driving shaft and in which the coupling member is inclined away from the rotational force transmitting angular position in a direction opposite to the pre-engagement angular position; wherein in response to a movement of the developing device when the movable member moves in the one direction, the coupling member moves from the pre-engagement angular position to the rotational force transmitting angular position to be opposed to the driving shaft, and wherein when the movable member makes a further movement in the one direction from a position where the coupling member is opposed to the driving shaft, in response to the further movement, the coupling member is disengaged from the driving shaft by moving from the rotational force transmitting angular position to the disengaging angular position.

10. 发明申请

US20190271939A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, DEVELOPING APPARATUS, AND COUPLING MEMBER 审中-公开
公开(公告)号：US20190271939A1
公开(公告)日：2019-09-05
申请号：US16413924
申请日：2019-05-16
申请人： CANON KABUSHIKI KAISHA
发明人： Masanari Morioka , Shiego Miyabe , Takahito Ueno
IPC分类号： G03G21/18 , G03G15/08 , F16D1/10 , G03G21/16 , G03G15/01 , F16D3/04
摘要： A developing device usable with an electrophotographic image forming apparatus, the apparatus including a driving shaft rotatable by a motor and having a rotating force applying portion, and a movable member, the developing device being mountable to the movable member, and the developing device being movable in a direction substantially perpendicular to an axial direction of the driving shaft in response to movement of the movable member in one direction with the developing device mounted to the movable member, the developing device includes i) a developing roller for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, the developing roller being rotatable about an axis; and ii) a coupling member for transmitting a rotating force to the developing roller, the coupling member including, a rotating force receiving portion engageable with the rotating force applying portion to receive a rotating force from the driving shaft, and a rotating force transmitting portion for transmitting the rotating force received through the rotating force receiving portion to the developing roller, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force for rotating the developing roller to the developing roller, a pre-engagement angular position which is taken before the coupling member is engaged with the rotating force applying portion and in which the coupling member is inclined away from the rotational force transmitting angular position, and a disengaging angular position which is taken for the coupling member to disengage from the driving shaft and in which the coupling member is inclined away from the rotational force transmitting angular position in a direction opposite to the pre-engagement angular position; wherein in response to a movement of the developing device when the movable member moves in the one direction, the coupling member moves from the pre-engagement angular position to the rotational force transmitting angular position to be opposed to the driving shaft, and wherein when the movable member makes a further movement in the one direction from a position where the coupling member is opposed to the driving shaft, in response to the further movement, the coupling member is disengaged from the driving shaft by moving from the rotational force transmitting angular position to the disengaging angular position.

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