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公开(公告)号：US20230097934A1
公开(公告)日：2023-03-30
申请号：US18061361
申请日：2022-12-02
发明人： Tokifumi Tanaka , Hideki Kanada , Mingguang Zhang
IPC分类号： G03G15/20
摘要： A fixing device includes a rotating body, an endless belt, a base material of the endless belt being made of a heat-resistant resin having a glass transition temperature of 140° C. or more, a heater configured to heat at least one of the rotating body and the endless belt, a sliding sheet contacting an inner circumferential surface of the endless belt, a base material of the sliding sheet being made of a heat-resistant resin having a glass transition temperature of 140° C. or more, a pressure pad, the endless belt and the sliding sheet being interposed between the pressure pad and the rotating body, and grease provided between the endless belt and the sliding sheet. The grease includes a base oil made of a fluorine oil and a thickener made of a solid lubricant containing fluorine. The consistency of the grease is 330 to 385 at 25° C.
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公开(公告)号：US10795297B2
公开(公告)日：2020-10-06
申请号：US16600805
申请日：2019-10-14
发明人： Tokifumi Tanaka , Hideki Kanada
IPC分类号： G03G15/20
摘要： A fuser may include a rotatable member, a belt, a pressure member, and a sliding member. The belt and rotatable member may form a nip portion. The sliding member may be sandwiched between an inner peripheral surface of the belt and the pressure member. The sliding member may include a front surface, which faces the inner peripheral surface of the belt. The front surface may include a plurality of dimples designed to catch lubricant that moves along ridges between the dimples.
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公开(公告)号：US10459384B2
公开(公告)日：2019-10-29
申请号：US16137664
申请日：2018-09-21
发明人： Tokifumi Tanaka , Hideki Kanada
IPC分类号： G03G15/20
摘要： A fuser may include a rotatable member, a belt, a pressure member, and a sliding member. The belt and rotatable member may form a nip portion. The sliding member may be sandwiched between an inner peripheral surface of the belt and the pressure member. The sliding member may include a front surface, which faces the inner peripheral surface of the belt. The front surface may include a plurality of dimples designed to catch lubricant that moves along ridges between the dimples.
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公开(公告)号：US20150192894A1
公开(公告)日：2015-07-09
申请号：US14590195
申请日：2015-01-06
发明人： Ryuji Noda , Satoru Ishikawa , Tokifumi Tanaka
IPC分类号： G03G21/18
CPC分类号： G03G21/1814 , G03G21/1857 , G03G21/1896
摘要： A process cartridge comprises: a developing cartridge; and a photosensitive member cartridge receiving the developing cartridge. The photosensitive member cartridge comprises a photosensitive member, and a pressing member configured to press the developing cartridge. The developing cartridge is configured to be located at a first position at which it is pressed by the pressing member and at a second position at which it is separable from the photosensitive member cartridge. The developing cartridge comprises: a driving mechanism including a detected member, and a covering member configured to cover the driving mechanism. The covering member comprises: a receiving part protruding configured to receive at least a part of the detected member; and an abutting part continuing to the receiving part, the abutting part being configured to abut on a member in the image forming apparatus main body and to move the developing cartridge to the first position.
摘要翻译： 处理盒包括：显影盒; 以及容纳显影盒的感光构件盒。 感光构件盒包括感光构件和构造成按压显影盒的按压构件。 显影盒构造成位于第一位置，在该第一位置被按压构件按压，并且在第二位置处，该第二位置与感光构件盒分离。 显影盒包括：包括被检测部件的驱动机构和构造成覆盖驱动机构的覆盖部件。 覆盖构件包括：接收部分，其突出设置成接收检测到的构件的至少一部分; 以及与所述接收部连续的抵接部，所述抵接部构造成抵接在所述图像形成装置主体中的部件上，并将所述显影盒移动到所述第一位置。
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5.发明授权公开(公告)号：US11294308B2
公开(公告)日：2022-04-05
申请号：US17128346
申请日：2020-12-21
发明人： Yusuke Mizuno , Fumitake Tajiri , Tokifumi Tanaka , Tomonori Watanabe , Sadaharu Kato , Hirotaka Imaeda
IPC分类号： G03G15/20
摘要： In an image forming device, a first fixing member has a roller. A second fixing member has a belt to form a nip together with the first fixing member. A pressure modifying mechanism modifies a nip pressure at the nip to selected one of a first nip pressure and a second nip pressure smaller than the first nip pressure. A controller drives the first motor to drive the roller and fixes the developer image on a sheet in a state that the nip pressure is the first nip pressure. The controller modifies the nip pressure from the first nip pressure to the second nip pressure while driving the first motor in a case where a final sheet among one or more sheets fixed according to a print job has passed the nip, and halts the first motor after the nip pressure is modified to the second nip pressure.
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公开(公告)号：US11156948B2
公开(公告)日：2021-10-26
申请号：US17145927
申请日：2021-01-11
发明人： Tokifumi Tanaka , Hideki Kanada
摘要： A fuser has a heater, a heat roller, an endless belt, a pressure pad, and a slidable sheet. The pressure pad forms a nipping portion to nip the endless belt between the pressure pad and the heat roller. The slidable sheet is interposed between an inner circumferential surface of the endless belt and the pressure pad in the nipping portion. The slidable sheet includes a plurality of dents and a plurality of projections on a surface contacting the inner circumferential surface of the endless belt. The plurality of dents are arranged in a first part of the surface of the slidable sheet. The first part is located in a range corresponding to the nipping portion. The plurality of projections are arranged in a second part of the surface of the slidable sheet. The second part is located in a range corresponding to a portion different from the nipping portion.
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公开(公告)号：US10901353B2
公开(公告)日：2021-01-26
申请号：US16585066
申请日：2019-09-27
发明人： Tokifumi Tanaka , Hideki Kanada
摘要： A fuser has a heater, a heat roller, an endless belt, a pressure pad, and a slidable sheet. The pressure pad forms a nipping portion to nip the endless belt between the pressure pad and the heat roller. The slidable sheet is interposed between an inner circumferential surface of the endless belt and the pressure pad in the nipping portion. The slidable sheet includes a plurality of dents and a plurality of projections on a surface contacting the inner circumferential surface of the endless belt. The plurality of dents are arranged in a first part of the surface of the slidable sheet. The first part is located in a range corresponding to the nipping portion. The plurality of projections are arranged in a second part of the surface of the slidable sheet. The second part is located in a range corresponding to a portion different from the nipping portion.
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公开(公告)号：US09423769B2
公开(公告)日：2016-08-23
申请号：US14334860
申请日：2014-07-18
发明人： Tokifumi Tanaka , Satoru Ishikawa
IPC分类号： G03G21/18
CPC分类号： G03G21/1846 , G03G21/1817 , G03G2221/1846 , G03G2221/1853
摘要： A process cartridge includes an image carrying member cartridge and a developing cartridge. The image carrying member cartridge includes a first handle. The developing cartridge includes a second handle. In a state where the developing cartridge is attached to the image carrying member cartridge, a one edge of the first handle is located at substantially the same position as a one edge of the second handle in a direction, and the second handle is spaced apart from the first handle.
摘要翻译： 处理盒包括图像承载构件盒和显影盒。 图像承载构件盒包括第一手柄。 显影盒包括第二把手。 在显影盒被安装到图像承载构件盒的状态下，第一手柄的一个边缘沿着一个方向位于与第二手柄的一个边缘基本相同的位置处，并且第二手柄与 第一把手。
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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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10.发明授权公开(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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