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公开(公告)号：US11579564B2
公开(公告)日：2023-02-14
申请号：US17718401
申请日：2022-04-12
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.
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公开(公告)号：US11556090B2
公开(公告)日：2023-01-17
申请号：US17410062
申请日：2021-08-24
发明人： Shougo Sato
摘要： An image forming apparatus includes a main housing, a drawer, and a drum unit. The drawer is movable between an accommodated position at which the drawer is accommodated in the main housing and a pulled-out position at which the drawer is pulled out from the main housing. The drum unit is attachable to the drawer in a state where the drawer is located at the pulled-out position. The drum unit includes a first photosensitive drum, a second photosensitive drum, and a waste toner pipe allowing passage of waste toner from the first photosensitive drum and waste toner from the second photosensitive drum.
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公开(公告)号：US11531298B2
公开(公告)日：2022-12-20
申请号：US17681444
申请日：2022-02-25
发明人： Hideshi Nishiyama , Atsushi Fukaya , Aya Adachi , Ryosuke Hayashi , Masaaki Furukawa , Shougo Sato
摘要： A process cartridge including a drum cartridge, a developing cartridge, and a waste toner container, is provided. The drum cartridge includes a photosensitive drum including a photosensitive layer and a rotation axis extending in an axial direction, a drum cleaner arranged to contact the photosensitive drum, a cleaner frame configured to accommodate the drum cleaner therein, and a waste toner conveyer tube connected with the cleaner frame. The developing cartridge is movable to be attached to and detached from the drum cartridge and includes a developer roller. The waste toner container is movable to be attached to and detached from the drum cartridge. When the developing cartridge and the waste toner container are attached to the drum cartridge, the waste toner container is connected with the waste toner conveyer tube and is located on an opposite side of the developing cartridge to the photosensitive drum.
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公开(公告)号：US11500307B2
公开(公告)日：2022-11-15
申请号：US17645025
申请日：2021-12-17
发明人： Hirofumi Tsuji
摘要： A toner conveying device includes a case that can store therein toner to be conveyed, a conveyance member rotatably supported at both ends thereof by the case and configured to rotate to convey the toner inside the case in a conveying direction set in advance, and a pushing member pushed against the conveyance member and configured to slide on an outer peripheral portion of the conveyance member as the conveyance member rotates. The pushing member includes a first sheet member having flexibility and abutting on the outer peripheral portion in a first direction intersecting with a rotational axis direction of the conveyance member to push the conveyance member and a second sheet member having flexibility and abutting on the outer peripheral portion in a second direction, which is different from the first direction, intersecting with the rotational axis direction to push the conveyance member.
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公开(公告)号：US11493858B2
公开(公告)日：2022-11-08
申请号：US17393440
申请日：2021-08-04
发明人： Ken Iguchi , Kazuhiko Kikuchi , Tadashi Sugiyama , Tokihiko Ise
摘要： An image forming apparatus of an embodiment includes an image forming unit, a waste toner collection container, a paddle motor, and a controller. The controller acquires a replenishment amount for each toner cartridge, when the image forming component is replenished with the toner from the plurality of toner cartridges, sets a coefficient for each replenishment amount of the toner cartridges, at least one of each set coefficient is different from the others, each of the replenishment amount is corrected by each coefficient, and drives the paddle motor according to a cumulative amount of each corrected replenishment amount.
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公开(公告)号：US20220350276A1
公开(公告)日：2022-11-03
申请号：US17865462
申请日：2022-07-15
发明人： Shougo Sato , Miho Ishida
摘要： In an image forming apparatus, a drum cartridge includes a photosensitive drum, a developing device, a drum cleaner, a waste toner tube, and a flange. The waste toner tube includes a first end portion communicating with the drum cleaner and a second end portion connected to the flange. The developing device includes a protruding portion facing the flange. The cushion member is located between the flange and the protruding portion. The cushion member allows a cartridge mounting part of the developing device to move with respect to the flange in a case where the developing device moves with respect to the photosensitive drum.
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公开(公告)号：US20220269217A1
公开(公告)日：2022-08-25
申请号：US17667770
申请日：2022-02-09
发明人： Shougo SATO , Tomoya ICHIKAWA
摘要： A first cartridge support is configured to support a drum cartridge. The first cartridge support is configured to move in a first direction between a first position at which the drum cartridge is mounted on a housing and a second position at which the drum cartridge is detachable. A second cartridge support is configured to support a development cartridge. The second cartridge support is configured to move in the first direction between a third position at which the development cartridge is mounted on the drum cartridge and a fourth position at which the development cartridge is detachable. In a state where the second cartridge support is located at the third position, the second cartridge support is located between the first cartridge support located at the first position and a cover located at a closed position with respect to the first direction.
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公开(公告)号：US11415928B2
公开(公告)日：2022-08-16
申请号：US17227428
申请日：2021-04-12
发明人： Hirotoshi Tajima , Toshiaki Ohata
摘要： An image forming apparatus includes a feeding device to feed residual toner, discharged from an image forming portion, toward a first collecting container and a second collecting container selectively. The feeding device includes an aggregate feeding passage to aggregate the residual toner discharged from a first or second image forming portion and feed the residual toner in an aggregate feeding direction traversing an up down direction. A vertical conveyance passage is provided along the up down direction and connected to the aggregate feeding passage, and a lateral feeding passage is connected to the vertical conveyance passage and capable of feeding the residual toner in a lateral feeding direction traversing the up-down direction. The feeding device feeds the residual toner in the lateral feeding passage toward the first collecting container and the second collecting container.
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公开(公告)号：US20220206415A1
公开(公告)日：2022-06-30
申请号：US17526171
申请日：2021-11-15
发明人： Hiroki Tanaka , Satoru Motohashi , Nobuo Oshima , Akihisa Matsukawa , Katsuichi Abe , Takayuki Namiki
摘要： An image forming apparatus includes a first image forming portion, a second image forming portion, a belt, a charging voltage applying portion, and a transfer voltage applying portion. With respect to a movement direction of the recording material, the first image forming portion is provided upstream of the second image forming portion. In an image forming operation, a potential difference between the first transfer voltage and a potential, at the first transfer portion, which is formed on the first image bearing member and does not form the image is larger than a potential difference between the second transfer voltage and a potential, at the second transfer portion, which is formed on the second image bearing member and does not form the image.
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公开(公告)号：US20220179358A1
公开(公告)日：2022-06-09
申请号：US17681444
申请日：2022-02-25
发明人： Hideshi Nishiyama , Atsushi Fukaya , Aya Adachi , Ryosuke Hayashi , Masaaki Furukawa , Shougo Sato
摘要： A process cartridge including a drum cartridge, a developing cartridge, and a waste toner container, is provided. The drum cartridge includes a photosensitive drum including a photosensitive layer and a rotation axis extending in an axial direction, a drum cleaner arranged to contact the photosensitive drum, a cleaner frame configured to accommodate the drum cleaner therein, and a waste toner conveyer tube connected with the cleaner frame. The developing cartridge is movable to be attached to and detached from the drum cartridge and includes a developer roller. The waste toner container is movable to be attached to and detached from the drum cartridge. When the developing cartridge and the waste toner container are attached to the drum cartridge, the waste toner container is connected with the waste toner conveyer tube and is located on an opposite side of the developing cartridge to the photosensitive drum.
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