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公开(公告)号：US20240310773A1
公开(公告)日：2024-09-19
申请号：US18607797
申请日：2024-03-18
发明人： Shota Iriyama , Yasuhiro Suzuki , Daisuke Ishizuka , Misato Osuka , Shuhei Fukue
CPC分类号： G03G15/657 , G03G15/2064 , G03G15/80 , G03G2215/0872
摘要： An image forming apparatus includes a main frame and a unit installable in an installation position in the main frame. The main frame has a first guide, a second guide, a groove, and a frame-side connector. The frame-side connector is movably held by the main frame. The unit has a first reference portion and a unit-side connector. The unit is installed in the main frame by a first process in which the first reference portion is guided by the first guide, a second process, in which the first reference portion is guided by the second guide, and a third process, in which the first reference portion is received in the groove and the unit is located in the installation position. The unit-side connector engages the frame-side connector in the first process, and the frame-side connector moves as the unit-side connector moves in the second process and in the third process.
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2.发明授权公开(公告)号：US10948858B2
公开(公告)日：2021-03-16
申请号：US16729632
申请日：2019-12-30
发明人： Hiroshi Handa , Mingguang Zhang , Shuhei Fukue , Tokifumi Tanaka , Kenji Takeuchi , Hirotaka Imaeda
摘要： A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt and configured to, with the rotator, pinch the belt to form a nip, an urging member configured to urge one of the rotator and the nip forming member towards the other in a particular direction perpendicular to the rotation axis, an upstream guide and a downstream guide. The upstream guide includes an upstream guide surface configured to guide an inner peripheral surface of the belt. The nip forming member includes a facing surface which faces the rotator. An upstream edge of the facing surface in the moving direction is located at a position farther from the rotation axis, in the particular direction, than a downstream edge of the upstream guide surface.
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公开(公告)号：US10684581B2
公开(公告)日：2020-06-16
申请号：US16255182
申请日：2019-01-23
IPC分类号： G03G15/20
摘要： A fuser is described including a heater, a belt, a rotating member, and a pad. A nip portion is formed between the belt and the rotating member as the pad presses the belt toward the rotating member. The pad is biased toward a restricting member. The biasing may be performed by one or more springs. The spring may be a compression spring, a tension spring, and/or a plate spring among other types of springs.
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4.发明授权公开(公告)号：US11977345B2
公开(公告)日：2024-05-07
申请号：US17187960
申请日：2021-03-01
发明人： Kazuna Taguchi , Hiroshi Handa , Shuhei Fukue , Tomonori Watanabe , Kenji Takeuchi , Tatsuo Ogasawara
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt, a holder holding the nip forming member, a first stay supporting the holder, an urging member urging the first stay toward the rotator, a second stay, and a connector. The nip forming member is configured to, with the rotator, pinch the belt to form a nip. The first stay extends in a width direction parallel to the rotation axis. The second stay is positioned upstream of the first stay in a moving direction of the belt at the nip. The moving direction is perpendicular to the width direction. The connector extends through at least one of the first stay and the second stay to connect the first stay to the second stay.
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公开(公告)号：US11327424B2
公开(公告)日：2022-05-10
申请号：US17211360
申请日：2021-03-24
IPC分类号： G03G15/20
摘要： A fixing device includes: a rotary body; a pressure body; a frame supporting the rotary body; and a pressure varying mechanism for providing a nip pressure to a nip region formed between the rotary body and the pressure body. The pressure varying mechanism includes a first spring and a second spring for urging one of the rotary body and the pressure body. The first spring applies a first urging force, and the second spring applies a second urging force acting in an opposite direction from the first urging force. The pressure varying mechanism can vary the nip pressure between a first nip pressure and a second nip pressure smaller than the first nip pressure. The nip pressure becomes the first nip pressure while only the first urging force is applied, and becomes the second nip pressure while both of the first urging force and the second urging force are applied.
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公开(公告)号：US11048195B2
公开(公告)日：2021-06-29
申请号：US16878738
申请日：2020-05-20
IPC分类号： G03G15/20
摘要： A fuser is described including a heater, a belt, a rotating member, and a pad. A nip portion is formed between the belt and the rotating member as the pad presses the belt toward the rotating member. The pad is biased toward a restricting member. The biasing may be performed by one or more springs. The spring may be a compression spring, a tension spring, and/or a plate spring among other types of springs.
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公开(公告)号：US10969719B2
公开(公告)日：2021-04-06
申请号：US16898035
申请日：2020-06-10
IPC分类号： G03G15/20
摘要： A fixing device includes: a rotary body; a pressure body; a frame supporting the rotary body; and a pressure varying mechanism for providing a nip pressure to a nip region formed between the rotary body and the pressure body. The pressure varying mechanism includes a first spring and a second spring for urging one of the rotary body and the pressure body. The first spring applies a first urging force, and the second spring applies a second urging force acting in an opposite direction from the first urging force. The pressure varying mechanism can vary the nip pressure between a first nip pressure and a second nip pressure smaller than the first nip pressure. The nip pressure becomes the first nip pressure while only the first urging force is applied, and becomes the second nip pressure while both of the first urging force and the second urging force are applied.
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公开(公告)号：US11675293B2
公开(公告)日：2023-06-13
申请号：US17383038
申请日：2021-07-22
IPC分类号： G03G15/20
CPC分类号： G03G15/2032 , G03G15/2064
摘要： An image forming apparatus includes a first fixing member, a second fixing member, and a controller. The second fixing member includes a first nip forming member and a second nip forming member each configured to nip an endless belt in combination with the first fixing member to form a nip region. A first end face on a first-fixing-member side of the first nip forming member is located closer, than a second end face on a first-fixing-member side of the second nip forming member, to the first fixing member. The controller is capable of executing a first printing process performed in a nip region formed between each of the first nip forming member and the second nip forming member and the first fixing member, and a second printing process performed in a nip region formed between only the first fixing member and the first fixing member.
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公开(公告)号：US11300907B2
公开(公告)日：2022-04-12
申请号：US17238279
申请日：2021-04-23
发明人： Hiroshi Handa , Tomonori Watanabe , Shuhei Fukue , Kenji Takeuchi , Kazuna Taguchi , Tatsuo Ogasawara
摘要： A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt, a first stay surrounded by the belt and extending in a width direction parallel to the rotation axis, a holder holding the nip forming member, and an urging member urging the first stay toward the rotator. The nip forming member is configured to, with the rotator, pinch the belt to form a nip. The first stay includes a first end and a second end. The holder includes a first engaging portion positioned at a first end of the holder, and a second engaging portion positioned at a second end of the holder. The first engaging portion engages the first end of the first stay. The second engaging portion engages the second end of the first stay.
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公开(公告)号：US10996600B2
公开(公告)日：2021-05-04
申请号：US16729785
申请日：2019-12-30
发明人： Hiroshi Handa , Tomonori Watanabe , Shuhei Fukue , Kenji Takeuchi , Kazuna Taguchi , Tatsuo Ogasawara
摘要： A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt, a first stay surrounded by the belt and extending in a width direction parallel to the rotation axis, a holder holding the nip forming member, and an urging member urging the first stay toward the rotator. The nip forming member is configured to, with the rotator, pinch the belt to form a nip. The first stay includes a first end and a second end. The holder includes a first engaging portion positioned at a first end of the holder, and a second engaging portion positioned at a second end of the holder. The first engaging portion engages the first end of the first stay. The second engaging portion engages the second end of the first stay.
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