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公开(公告)号：US20200285191A1
公开(公告)日：2020-09-10
申请号：US16805504
申请日：2020-02-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroki Shimizu , Tomofumi Kawamura , Masakazu Tatsumi
Abstract: In a remanufacturing method for remanufacturing a cartridge from a material cartridge, the material cartridge is attachable to and detachable from an apparatus main body of an image forming apparatus, and the apparatus main body includes a guide member. The material cartridge includes a frame member including an engagement portion configured to be engaged with the guide member, and a first attachment portion provided in the engagement portion, and a first storage member. The first storage member includes a first holding portion configured to hold a first electrode and be attached to the first attachment portion. The remanufacturing method includes detaching the first holding portion, attaching a second electrode to the frame member, and attaching a second storage element to the frame member at a different position from a position of the first attachment portion.
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公开(公告)号：US10261463B2
公开(公告)日：2019-04-16
申请号：US16005462
申请日：2018-06-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Shoichi Zensai , Takashi Yano
Abstract: An image forming apparatus includes a mounting unit configured to mount a cartridge including a developing member by moving the cartridge in the insertion direction, and a pressing member having a first pressing portion configured to press the cartridge mounted on the mounting unit to separate the developing member from a photosensitive member. The pressing member has a second pressing portion configured to press the cartridge mounted on the mounting unit to bring the developing member into contact with the photosensitive member, and the first pressing portion and the second pressing portion integrally moves with the movement of the pressing member. The image forming apparatus also includes an elastic member configured to press the pressing member so that the second pressing portion presses the cartridge.
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公开(公告)号：US20180292781A1
公开(公告)日：2018-10-11
申请号：US16005462
申请日：2018-06-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Shoichi Zensai , Takashi Yano
CPC classification number: G03G21/1647 , G03G21/1633 , G03G21/1676 , G03G21/1842 , G03G21/185 , G03G2215/0132 , G03G2221/1684
Abstract: An image forming apparatus includes a mounting unit configured to mount a cartridge including a developing member by moving the cartridge in the insertion direction, and a pressing member having a first pressing portion configured to press the cartridge mounted on the mounting unit to separate the developing member from a photosensitive member. The pressing member has a second pressing portion configured to press the cartridge mounted on the mounting unit to bring the developing member into contact with the photosensitive member, and the first pressing portion and the second pressing portion integrally moves with the movement of the pressing member. The image forming apparatus also includes an elastic member configured to press the pressing member so that the second pressing portion presses the cartridge.
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公开(公告)号：US20220404739A1
公开(公告)日：2022-12-22
申请号：US17821747
申请日：2022-08-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Masato Tanabe
IPC: G03G15/08
Abstract: A cartridge includes a casing including a toner storage chamber storing toner and a toner discharge chamber having an outlet, a conveyance member conveying the toner from the toner storage chamber to the toner discharge chamber, an action member attached to the conveyance member and repeating an action of shifting between an entering state of entering the outlet and a retraction state of retracting from the outlet, and a pump expanding and contracting to be shifted between a first state and a second state in which the internal space is smaller in volume than in the first state, the pump putting air into the toner discharge chamber by being shifted from the first state to the second state, thereby discharging the toner from the toner discharge chamber through the outlet, and the pump taking in air by being shifted from the second state to the first state.
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公开(公告)号：US11287763B2
公开(公告)日：2022-03-29
申请号：US17092663
申请日：2020-11-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Masato Tanabe , Takatoshi Hamada , Yusuke Atsu
Abstract: A toner transport apparatus includes a toner, a transport container having a transport path for transporting the toner toward the developing apparatus, and a pipe through which the toner is transported from the toner container to the transport container, with the pipe having an outlet hole from which the toner is discharged into the transport container. An air pump transports the toner from the toner container to the transport container, and an optical sensor includes a light-emitting element to emit a light and a light-receiving element to receive the light so that an optical path from the light-emitting element to the light-receiving element intersects with a passage area of the toner through which the toner passes after being discharged from the outlet hole of the pipe and before landing at a landing point of the transport container.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10423119B2
公开(公告)日：2019-09-24
申请号：US16058835
申请日：2018-08-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Shoichi Zensai , Takashi Yano
Abstract: An image forming apparatus includes a mounting unit configured to mount a development unit including a developing member, a pressing member configured to press the development unit mounted on the mounting unit to separate the developing member from a photosensitive member or bring the developing member into contact with the photosensitive member, and an urging member configured to urge the pressing member, wherein, when mounting the development unit on the mounting unit, the development unit moves in a first direction from the pressing member toward the development unit, parallel to a direction in which the pressing member and the development unit are arranged side by side, wherein the pressing member is movable in the first direction, and wherein the urging member urges the pressing member to move the pressing member in the first direction.
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公开(公告)号：US20190094796A1
公开(公告)日：2019-03-28
申请号：US16140126
申请日：2018-09-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Shoichi Zensai , Takamichi Matsuo
Abstract: An image forming apparatus including a cartridge including a rotating member, the cartridge including a driving force receiving member, and an apparatus main body to which the cartridge is detachably attachable. The apparatus main body including a driving force transmitting member, an output member, and a biasing member disposed between the output member and the driving force transmitting member, wherein when the cartridge is detached from the apparatus main body and an engagement between the driving force transmitting member and the driving force receiving member is released, the driving force transmitting member is rotated relative to the output member in the predetermined rotation direction by biasing force of the biasing member.
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公开(公告)号：US20180120763A1
公开(公告)日：2018-05-03
申请号：US15794284
申请日：2017-10-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroki Takano , Tomofumi Kawamura , Shoichi Zensai
CPC classification number: G03G21/1842 , G03G15/0865 , G03G21/1633 , G03G21/1821 , G03G2221/1654 , G03G2221/1853
Abstract: An apparatus includes an opening/closing member that opens/closes space which is provided in an apparatus body and in which a first unit and a second unit are accommodated; a first guide portion that guides the first unit in the space; a second guide portion that guides the second unit in the space; and a slope member that is capable of guiding the first unit to the first guide portion provided at a position higher than a position of the second guide portion in a height direction orthogonal to an inserting/extracting direction of the space when the opening/closing member is put in an open position, the slope member being coupled between the apparatus body and the opening/closing member so as to be positioned in the space when the opening/closing member is put in a closed position to close the space.
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公开(公告)号：US20170261920A1
公开(公告)日：2017-09-14
申请号：US15453570
申请日：2017-03-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Shoichi Zensai , Takashi Yano
IPC: G03G15/04
CPC classification number: G03G21/1647 , G03G21/1633 , G03G21/1676 , G03G21/1842 , G03G21/185 , G03G2215/0132 , G03G2221/1684
Abstract: An image forming apparatus includes a mounting unit configured to mount a cartridge including a developing member by moving the cartridge in the insertion direction, and a pressing member having a first pressing portion configured to press the cartridge mounted on the mounting unit to separate the developing member from a photosensitive member. The pressing member has a second pressing portion configured to press the cartridge mounted on the mounting unit to bring the developing member into contact with the photosensitive member, and the first pressing portion and the second pressing portion integrally moves with the movement of the pressing member. The image forming apparatus also includes an elastic member configured to press the pressing member so that the second pressing portion presses the cartridge.
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公开(公告)号：US11841644B2
公开(公告)日：2023-12-12
申请号：US17821747
申请日：2022-08-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomofumi Kawamura , Masato Tanabe
IPC: G03G15/08
CPC classification number: G03G15/0887 , G03G15/0822 , G03G15/0865 , G03G15/0874 , G03G15/0879 , G03G2215/066
Abstract: A cartridge includes a casing including a toner storage chamber storing toner and a toner discharge chamber having an outlet, a conveyance member conveying the toner from the toner storage chamber to the toner discharge chamber, an action member attached to the conveyance member and repeating an action of shifting between an entering state of entering the outlet and a retraction state of retracting from the outlet, and a pump expanding and contracting to be shifted between a first state and a second state in which the internal space is smaller in volume than in the first state, the pump putting air into the toner discharge chamber by being shifted from the first state to the second state, thereby discharging the toner from the toner discharge chamber through the outlet, and the pump taking in air by being shifted from the second state to the first state.
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