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公开(公告)号：US20210208532A1
公开(公告)日：2021-07-08
申请号：US17205250
申请日：2021-03-18
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A developing cartridge includes: a casing; a developing roller; a shaft; and a cam. The casing is configured to accommodate developer therein. The developing roller is rotatable about a first axis extending in an axial direction. The shaft extends along a second axis extending in the axial direction. The shaft is movable along the second axis. The cam is movable along the second axis in response to axial movement of the shaft. The cam has a cam surface non-parallel with the second axis.
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公开(公告)号：US20200081371A1
公开(公告)日：2020-03-12
申请号：US16680803
申请日：2019-11-12
发明人： Yuwen WANG , Kazuaki OOKA , Isao KISHI , Junichi HASHIMOTO
摘要： A developing roller is located nearer a first end than a second end in a first direction. A first boss extends in a second direction and is movable together with a housing. The first boss bears the weight of a developer cartridge when the first boss is supported by a support surface of a first side plate of a drum unit, and is located away from the developing roller in the first direction and the third direction. A first pressure receiving surface is located farther away from the developing roller than the first boss in the third direction. The pressure receiving member receives a pressing force in the third direction from a pressing member of the first side plate of the drum unit. The first boss is located away from the developing roller in the first direction by a first distance. The first pressure receiving surface is located away from the developing roller in the first direction by the first distance or by a second distance smaller than the first distance.
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公开(公告)号：US20210311414A1
公开(公告)日：2021-10-07
申请号：US17213464
申请日：2021-03-26
发明人： Junichi HASHIMOTO , Yuwen WANG , Takuya AMAIKE , Soun KANADA , Kazuma HINOUE
摘要： An image forming apparatus including a housing, a toner cartridge, and a drum unit. The drum unit is movable through the opening between an accommodated position where the drum unit is positioned in the housing and a pulled-out position where the drum unit is pulled out of the housing. The drum unit includes a photosensitive drum and a developing unit. The photosensitive drum is rotatable about a first axis extending in a second direction. The developing unit includes a magnetic roller, a developer container, a first auger and a second auger. The magnetic roller is positioned between the toner cartridge and the photosensitive drum. The magnetic roller faces a surface of the photosensitive drum. The developer container is formed with an inlet allowing the toner to be replenished from the toner cartridge. The first auger is positioned in the developer container. The second auger is positioned in the developer container.
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公开(公告)号：US20210165361A1
公开(公告)日：2021-06-03
申请号：US17174540
申请日：2021-02-12
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.
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公开(公告)号：US20200341426A1
公开(公告)日：2020-10-29
申请号：US16926870
申请日：2020-07-13
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.
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公开(公告)号：US20190302682A1
公开(公告)日：2019-10-03
申请号：US16143665
申请日：2018-09-27
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A developing cartridge includes: a casing; a developing roller; a shaft; and a cam. The casing is configured to accommodate developer therein. The developing roller is rotatable about a first axis extending in an axial direction. The shaft extends along a second axis extending in the axial direction. The shaft is movable along the second axis. The cam is movable along the second axis in response to axial movement of the shaft. The cam has a cam surface non-parallel with the second axis.
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公开(公告)号：US20190302681A1
公开(公告)日：2019-10-03
申请号：US16144178
申请日：2018-09-27
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.
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公开(公告)号：US20220236689A1
公开(公告)日：2022-07-28
申请号：US17717555
申请日：2022-04-11
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.
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公开(公告)号：US20210311433A1
公开(公告)日：2021-10-07
申请号：US17212449
申请日：2021-03-25
发明人： Yuwen WANG , Takuya AMAIKE , Junichi HASHIMOTO
摘要： A drum unit includes a photosensitive drum, a developing unit, a toner cartridge, a connector and a relay board. The photosensitive drum is rotatable about a first axis extending in an axial direction. The developing unit includes a magnetic roller, a developer container, a conveyer member and a toner sensor. The developer container accommodate therein carrier, and has an inlet. The conveyer member is positioned in the developer container, and configured to convey the toner and the carrier from the inlet toward the magnetic roller. The toner cartridge accommodate therein toner and is attachable to the developer container to replenish the toner in the developer container through the inlet. The connector is electrically connected to the image forming apparatus. The relay board electrically connects the toner sensor to the connector. The relay board is configured to transmit a detection signal from the toner sensor to the image forming apparatus.
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10.发明申请公开(公告)号：US20210109456A1
公开(公告)日：2021-04-15
申请号：US17117314
申请日：2020-12-10
发明人： Yuwen WANG , Junichi HASHIMOTO , Isao KISHI , Kazuaki OOKA
摘要： A developing cartridge includes a casing having an outer surface, a developing roller, a first electrode, and a boss. The developing roller is movable together with the casing and includes a developing roller shaft extending along a first axis extending in a first direction. The developing roller is rotatable about the first axis. The first electrode is positioned at one end portion in the first direction of the developing roller shaft, and electrically connected to the developing roller shaft. The boss is positioned at one end portion in the first direction of the outer surface. The boss extends in the first direction and is engageable with the drum unit. A part of the first electrode is configured to contact with a second electrode of the drum unit as a result of pivotal movement of the developing cartridge about the boss relative to the drum unit.
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