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公开(公告)号：EP3226076B1
公开(公告)日：2020-08-05
申请号：EP15862416.3
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
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公开(公告)号：EP3936944A1
公开(公告)日：2022-01-12
申请号：EP21188412.7
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
摘要： Movement and/or urging of a developer carrying member is carried out with high precision.
A cartridge that is mountable to an apparatus main assembly of an image forming apparatus, the cartridge includes a developing roller; a frame supporting the developing roller; a movable part movably supported by the frame and movable to a first position and to a second position relative to the frame; and an elastic part provided between the frame and the movable part to urge the movable part. The movable part includes a first force receiving part that receives force from the apparatus main assembly, in a direction of moving from the first position to the second position, and a second force receiving part that receives force from the apparatus main assembly, in a direction of moving from the second position to the first position. When the movable part receives force from the apparatus main assembly at the first force receiving part and is at the second position, the movable part receives urging force from the elastic part in a direction of moving the movable part from the second position to the first position.-
公开(公告)号：EP4407379A2
公开(公告)日：2024-07-31
申请号：EP24175384.7
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
IPC分类号： G03G15/08
CPC分类号： G03G21/1817 , G03G21/1842 , G03G21/1647 , G03G21/1825 , G03G21/1857 , G03G21/186 , G03G15/0863 , G03G15/0896 , G03G21/1821 , G03G21/1853
摘要： A cartridge (B1) is mountable to an apparatus main assembly (A1) of an image forming apparatus, the apparatus main assembly (A1) having mounted a photosensitive drum (10) separate from the cartridge (B1). The cartridge (B1) comprising: a developing roller (13) including an elastic layer (13d) for bearing developer (t), wherein the elastic layer (13d) can be pressured against the photosensitive drum (10); a frame (16, 34, 36, 46) supporting the developing roller (13); a drive input member (180, 280) configured to receive input of a rotational force to rotate the developing roller (13); a movable part (70) movably supported by the frame (16, 34, 36, 46) and movable to a first position and to a second position relative to the frame (16, 34, 36, 46); and an elastic part (71) provided between the frame (16, 34, 36, 46) and the movable part (70) to urge the movable part (70). The movable part (70) includes a first force receiving part (70a) configured to receive a first external force from the apparatus main assembly (A1), in a direction of moving from the first position to the second position, and a second force receiving part (70g, 170g) configured to receive a second external force from the apparatus main assembly (A1), in a direction of moving from the second position to the first position. When the movable part (70) receives the first external force from the apparatus main assembly (A1) at the first force receiving part (70a) and is at the second position, the movable part (70) receives an urging force (F 10) from the elastic part (71) in a direction of moving the movable part (70) from the second position to the first position. The first force receiving part (70a) is configured to receive the first external force from the apparatus main assembly (A1) so that, in a state that the cartridge (B1) is mounted on the apparatus main assembly (A1), the movable part (70) is at the second position and the elastic layer (13d) is pressured against the photosensitive drum (10) via the elastic part (71) and the frame (16, 34, 36, 46). The second force receiving part (70g, 170g) is configured to receive the second external force from the apparatus main assembly (A1) so that, in a state that the cartridge (B1) is mounted on the apparatus main assembly (A1), the movable part (70) is at the first position and the elastic layer (13d) is spaced from the photosensitive drum (10).
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公开(公告)号：EP4390553A2
公开(公告)日：2024-06-26
申请号：EP24169662.4
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
IPC分类号： G03G15/08
CPC分类号： G03G21/1817 , G03G21/1842 , G03G21/1647 , G03G21/1825 , G03G21/1857 , G03G21/186 , G03G15/0863 , G03G15/0896 , G03G21/1821 , G03G21/1853
摘要： A cartridge (B1) is provided that is mountable to an apparatus main assembly (A1) of an image forming apparatus. The cartridge (B1) comprises a developing roller (13); a frame (16, 34, 36, 46) supporting the developing roller (13); a movable part (70) that is movably supported by the frame (16, 34, 36, 46), and moves to a first position and a second position with respect to the frame (16, 34, 36, 46); and an elastic part (71) that is disposed between the frame (16, 34, 36, 46) and the movable part (70), and biases the movable part (70), wherein the frame (16, 34, 36, 46) has a developer (t) accommodation part (16a) that accommodates developer (t), wherein the movable part (70) is rotatably supported by the frame (16, 34, 36, 46), and includes a force receiving part (70a) that receives force in a direction of moving from the first position to the second position, wherein, when the movable part (70) receives force at the force receiving part (70a) and is at the second position, the movable part (70) receives biasing force from the elastic part (71) in a direction of moving the movable part (70) from the second position to the first position, and wherein a rotational center of the movable part (70) is disposed at a position overlapping the developer accommodation part (16a), as viewed from the rotational axis direction (L0) of the developing roller (13).
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公开(公告)号：EP3940460A1
公开(公告)日：2022-01-19
申请号：EP20774371.7
申请日：2020-03-13
发明人： WADA, Koji , OGAWA, Tsuyoshi , TAKARADA, Hiroshi , MATSUZAKA, Kenji , SAMESHIMA, Takao , NOGUCHI, Tomio , INABA, Yuichiro , IIDA, Kenichi , SATO, Masaaki
摘要： Provided is an apparatus including a developer container (32) to and from which a replenishment container (40) is attachable and detachable, the developer container (32) being configured to rotatably support the developer bearing member and including an accommodating portion (36) configured to accommodate the developer to be borne on the developer bearing member (31), and a supporting portion (81) that supports thereon a recording material discharged to the outside of the apparatus, wherein the developer container (32) includes a projection portion (37) that is provided at one end portion thereof in the rotation axis direction of the developer bearing member (31) and projects toward the supporting portion (81) more than a center portion of the developer container (32) in a crossing direction crossing the rotation axis direction, the projection portion (37) communicates with the accommodating portion (36) and includes, at a distal end portion thereof, an attachment portion (57) configured such that the replenishment container (40) is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port (32a) for replenishing the accommodating portion (36) with developer from the replenishment container (40) is defined in the attachment portion (57).
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公开(公告)号：EP3940459A1
公开(公告)日：2022-01-19
申请号：EP20773141.5
申请日：2020-03-13
发明人： SATO, Masaaki , WADA, Koji , OGAWA, Tsuyoshi , FUJINAKA, Koji , SAMESHIMA, Takao , NOGUCHI, Tomio , TOYOTA, Akitoshi , NITTANI, Susumu
摘要： Provided is an apparatus comprising an image bearing member (21), a developer container (32) having a replenishment port (32a), a developer bearing member (31), detection means (51, 52) configured to output remainder amount information corresponding to the amount of developer accommodated in the developer container (32), a notification means (400) capable of notifying a first state indicating that a remainder amount of the developer accommodated in the developer container (32) is a first amount or more, and a second state indicating that the remainder amount of the developer accommodated in the developer container (32) is less than the first amount, and a control means (90) configured to cause the notification means (400) to notify one of a plurality of states, wherein the maximum amount of the developer that the developer container (32) is capable of accommodating is larger than a value obtained by adding the amount of the developer accommodated in a replenishment container (40) containing the developer for replenishment to the first amount, and wherein notification of the second state corresponds to notification of a case where the amount of the developer remaining in the developer container (32) is larger than a case where the amount of the developer remaining in the developer container (32) is the smallest.
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公开(公告)号：EP4407379A3
公开(公告)日：2024-10-30
申请号：EP24175384.7
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
摘要： A cartridge (B1) is mountable to an apparatus main assembly (A1) of an image forming apparatus, the apparatus main assembly (A1) having mounted a photosensitive drum (10) separate from the cartridge (B1). The cartridge (B1) comprising: a developing roller (13) including an elastic layer (13d) for bearing developer (t), wherein the elastic layer (13d) can be pressured against the photosensitive drum (10); a frame (16, 34, 36, 46) supporting the developing roller (13); a drive input member (180, 280) configured to receive input of a rotational force to rotate the developing roller (13); a movable part (70) movably supported by the frame (16, 34, 36, 46) and movable to a first position and to a second position relative to the frame (16, 34, 36, 46); and an elastic part (71) provided between the frame (16, 34, 36, 46) and the movable part (70) to urge the movable part (70). The movable part (70) includes a first force receiving part (70a) configured to receive a first external force from the apparatus main assembly (A1), in a direction of moving from the first position to the second position, and a second force receiving part (70g, 170g) configured to receive a second external force from the apparatus main assembly (A1), in a direction of moving from the second position to the first position. When the movable part (70) receives the first external force from the apparatus main assembly (A1) at the first force receiving part (70a) and is at the second position, the movable part (70) receives an urging force (F 10) from the elastic part (71) in a direction of moving the movable part (70) from the second position to the first position. The first force receiving part (70a) is configured to receive the first external force from the apparatus main assembly (A1) so that, in a state that the cartridge (B1) is mounted on the apparatus main assembly (A1), the movable part (70) is at the second position and the elastic layer (13d) is pressured against the photosensitive drum (10) via the elastic part (71) and the frame (16, 34, 36, 46). The second force receiving part (70g, 170g) is configured to receive the second external force from the apparatus main assembly (A1) so that, in a state that the cartridge (B1) is mounted on the apparatus main assembly (A1), the movable part (70) is at the first position and the elastic layer (13d) is spaced from the photosensitive drum (10).
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公开(公告)号：EP4390553A3
公开(公告)日：2024-10-16
申请号：EP24169662.4
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
摘要： A cartridge (B1) is provided that is mountable to an apparatus main assembly (A1) of an image forming apparatus. The cartridge (B1) comprises a developing roller (13); a frame (16, 34, 36, 46) supporting the developing roller (13); a movable part (70) that is movably supported by the frame (16, 34, 36, 46), and moves to a first position and a second position with respect to the frame (16, 34, 36, 46); and an elastic part (71) that is disposed between the frame (16, 34, 36, 46) and the movable part (70), and biases the movable part (70), wherein the frame (16, 34, 36, 46) has a developer (t) accommodation part (16a) that accommodates developer (t), wherein the movable part (70) is rotatably supported by the frame (16, 34, 36, 46), and includes a force receiving part (70a) that receives force in a direction of moving from the first position to the second position, wherein, when the movable part (70) receives force at the force receiving part (70a) and is at the second position, the movable part (70) receives biasing force from the elastic part (71) in a direction of moving the movable part (70) from the second position to the first position, and wherein a rotational center of the movable part (70) is disposed at a position overlapping the developer accommodation part (16a), as viewed from the rotational axis direction (L0) of the developing roller (13).
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公开(公告)号：EP3951509A1
公开(公告)日：2022-02-09
申请号：EP21188411.9
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
摘要： Movement and/or urging of a developer carrying member is carried out with high precision.
A cartridge that is mountable to an apparatus main assembly of an image forming apparatus, the cartridge includes a developing roller; a frame supporting the developing roller; a movable part movably supported by the frame and movable to a first position and to a second position relative to the frame; and an elastic part provided between the frame and the movable part to urge the movable part. The movable part includes a first force receiving part that receives force from the apparatus main assembly, in a direction of moving from the first position to the second position, and a second force receiving part that receives force from the apparatus main assembly, in a direction of moving from the second position to the first position. When the movable part receives force from the apparatus main assembly at the first force receiving part and is at the second position, the movable part receives urging force from the elastic part in a direction of moving the movable part from the second position to the first position.-
公开(公告)号：EP3936943A1
公开(公告)日：2022-01-12
申请号：EP21188410.1
申请日：2015-11-27
发明人： SATO, Masaaki , KUBO, Yukio , MUNETSUGU, Hiroyuki , WADA, Koji
摘要： Movement and/or urging of a developer carrying member is carried out with high precision.
A cartridge that is mountable to an apparatus main assembly of an image forming apparatus, the cartridge includes a developing roller; a frame supporting the developing roller; a movable part movably supported by the frame and movable to a first position and to a second position relative to the frame; and an elastic part provided between the frame and the movable part to urge the movable part. The movable part includes a first force receiving part that receives force from the apparatus main assembly, in a direction of moving from the first position to the second position, and a second force receiving part that receives force from the apparatus main assembly, in a direction of moving from the second position to the first position. When the movable part receives force from the apparatus main assembly at the first force receiving part and is at the second position, the movable part receives urging force from the elastic part in a direction of moving the movable part from the second position to the first position.
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