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公开(公告)号：US20220267109A1
公开(公告)日：2022-08-25
申请号：US17667191
申请日：2022-02-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keita Nakajima , Ko Katahira
Abstract: A conveyance device to convey a sheet includes an apparatus main body including a regulating portion, an opening/closing door including a first guide portion, and a conveyance guide supported by the opening/closing door and having a second guide portion and a regulated portion. The opening/closing door moves relative to the apparatus main body between an open position and a closed position where the conveyance guide is placed between the apparatus main body and the opening/closing door. When the conveyance guide pivots in an away direction where the second guide portion moves away from the first guide portion with the opening/closing door in the open position, the regulated portion contacts the regulating portion to regulate rotation of the conveyance guide in the away direction. The second guide portion and the regulated portion are on one side of a pivot axis in a direction that is perpendicular to a pivot axis direction.
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公开(公告)号：US11906923B2
公开(公告)日：2024-02-20
申请号：US17932618
申请日：2022-09-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ko Katahira , Keita Nakajima
IPC: G03G15/00
CPC classification number: G03G15/6552 , G03G15/5016 , G03G2215/00421 , G03G2215/00911
Abstract: An image forming apparatus includes an upper guide unit fixed to the image forming apparatus and configured to guide an upper surface of the sheet discharged by a roller pair, a stack unit provided at a position recessed from an upper exterior unit of the image forming apparatus, and an operation unit including a display unit. The discharged sheets are stacked on the stack unit. The upper guide unit extends more to a downstream side in the discharge direction than the roller pair. The operation unit and the upper guide unit each have a portion overlapping with each other. When viewed in an axial direction of the roller pair, the operation unit and the upper guide unit are arranged at positions through which a straight line orthogonal to a plane passing through axes of rollers of the roller pair and passing through a nip portion of the roller pair passes.
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公开(公告)号：US20230088254A1
公开(公告)日：2023-03-23
申请号：US17932618
申请日：2022-09-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ko Katahira , Keita Nakajima
IPC: G03G15/00
Abstract: An image forming apparatus includes an upper guide unit fixed to the image forming apparatus and configured to guide an upper surface of the sheet discharged by a roller pair, a stack unit provided at a position recessed from an upper exterior unit of the image forming apparatus, and an operation unit including a display unit. The discharged sheets are stacked on the stack unit. The upper guide unit extends more to a downstream side in the discharge direction than the roller pair. The operation unit and the upper guide unit each have a portion overlapping with each other. When viewed in an axial direction of the roller pair, the operation unit and the upper guide unit are arranged at positions through which a straight line orthogonal to a plane passing through axes of rollers of the roller pair and passing through a nip portion of the roller pair passes.
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公开(公告)号：US12197152B2
公开(公告)日：2025-01-14
申请号：US18455523
申请日：2023-08-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ko Katahira , Motoyasu Muramatsu
Abstract: An image forming apparatus includes a fixing unit and an apparatus main body. The fixing unit includes a heating unit, a pressure roller, first and second cam members, and a pressure force release unit. The pressure force release unit switches a position of the heating unit between a first position at which a predetermined pressure force is applied from the pressure roller to a fixing nip portion, and a second position at which the applied predetermined pressure force is reduced or released. The apparatus main body includes first and second doors that are opened and closed and contain the fixing unit. The first cam member rotates with an open and close of the first door, and the second cam member rotates with an open and close of the second door. A rotational center of the second cam member is arranged coaxially with a rotational center of the first cam member.
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公开(公告)号：US20220187754A1
公开(公告)日：2022-06-16
申请号：US17684332
申请日：2022-03-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ko Katahira
Abstract: An image forming apparatus includes an image forming portion and a post-processing portion, a first frame, a second frame and a connection member. The first frame includes a first section for supporting a photosensitive member and a second section bent from a bottom end of the first section. The second frame, to which an electronic circuit board is attached, supported by the second section of the first frame without being fixed to the first section of the first frame. The connection member is connected with the second frame and a third frame which is a frame of the post-processing portion.
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Patent Agency Ranking
公开(公告)号：US11294321B2
公开(公告)日：2022-04-05
申请号：US17332844
申请日：2021-05-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ko Katahira
Abstract: An image forming apparatus includes an image forming portion and a post-processing portion, a first frame, a second frame and a connection member. The first frame includes a first section for supporting a photosensitive member and a second section bent from a bottom end of the first section. The second frame, to which an electronic circuit board is attached, supported by the second section of the first frame without being fixed to the first section of the first frame. The connection member is connected with the second frame and a third frame which is a frame of the post-processing portion.
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公开(公告)号：US20190137930A1
公开(公告)日：2019-05-09
申请号：US16181880
申请日：2018-11-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tsutomu Ishida , Tomonari Inoue , Kenji Abe , Takashi Kuwata , Keita Nakajima , Ko Katahira , Takehito Osada
Abstract: An image forming apparatus comprises a light-emission unit, a reflecting member, a light-receiving unit, a detection unit, a ventilation unit configured to send air to the reflecting member; and a control unit. The control unit adjusts at least one of an operation duration and an airflow rate of the ventilation unit, in accordance with a detection signal outputted by the light-receiving unit when a sheet is not at a position where light crosses a conveyance path.
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公开(公告)号：US12037216B2
公开(公告)日：2024-07-16
申请号：US17667191
申请日：2022-02-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keita Nakajima , Ko Katahira
CPC classification number: B65H5/36 , B65H3/0653 , B65H1/04 , B65H2301/342 , B65H2402/441 , B65H2402/45 , G03G21/1633 , G03G21/1638
Abstract: A conveyance device to convey a sheet includes an apparatus main body including a regulating portion, an opening/closing door including a first guide portion, and a conveyance guide supported by the opening/closing door and having a second guide portion and a regulated portion. The opening/closing door moves relative to the apparatus main body between an open position and a closed position where the conveyance guide is placed between the apparatus main body and the opening/closing door. When the conveyance guide pivots in an away direction where the second guide portion moves away from the first guide portion with the opening/closing door in the open position, the regulated portion contacts the regulating portion to regulate rotation of the conveyance guide in the away direction. The second guide portion and the regulated portion are on one side of a pivot axis in a direction that is perpendicular to a pivot axis direction.
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公开(公告)号：US11809120B2
公开(公告)日：2023-11-07
申请号：US17684332
申请日：2022-03-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ko Katahira
CPC classification number: G03G15/80 , G03G21/1619 , G03G2221/166
Abstract: An image forming apparatus includes an image forming portion and a post-processing portion, a first frame, a second frame and a connection member. The first frame includes a first section for supporting a photosensitive member and a second section bent from a bottom end of the first section. The second frame, to which an electronic circuit board is attached, supported by the second section of the first frame without being fixed to the first section of the first frame. The connection member is connected with the second frame and a third frame which is a frame of the post-processing portion.
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公开(公告)号：US10606195B2
公开(公告)日：2020-03-31
申请号：US16357470
申请日：2019-03-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keita Nakajima , Kenji Abe , Tomonari Inoue , Takehito Osada , Ko Katahira
Abstract: A toner image is formed on a first sheet surface and then heated. A conveyance unit includes a first rotary member configured to contact the first sheet surface and a second rotary member configured to contact a second sheet surface opposite to the first sheet surface. A conveyance guide is provided with an opening through which air is blown to the first sheet surface. The conveyance guide includes a first surface part and a second surface part. The first surface part is disposed on a location in a width direction overlapping with a location in the width direction of the first rotary member. In at least a part of a range between the opening and the first rotary member in the sheet conveyance direction, the first surface part is protruded with respect to the second surface part in a height direction.
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