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31. 发明申请

US20220357692A1 TRANSFER UNIT AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220357692A1
公开(公告)日：2022-11-10
申请号：US17871761
申请日：2022-07-22
申请人： CANON KABUSHIKI KAISHA
发明人： Norihiro Matsumoto , Yuichiro Inaba , Akinori Mitsumata
IPC分类号： G03G15/16 , G03G15/00
摘要： A belt unit, for use in an image forming apparatus, includes an endless belt that moves in a movement direction, a transfer member, a collecting member, a storage container, and a conveyance member. The conveyance member conveys toner in a conveyance direction, rotates about a rotational axis extending in a rotational axis direction, includes a shaft and a conveyance portion provided on a shaft outer surface, and has a helical shape having a helical axis extending in the rotational axis direction. The conveyance member further includes a protruding portion protruding from the shaft outer surface in a direction crossing the conveyance member rotational axis, which has a shape different from the helical shape, and which is provided on a shaft portion downstream of the conveyance portion in the conveyance direction. The rotational axis direction is a direction crossing both the endless belt movement direction and a transfer member longitudinal direction.

32. 发明申请

US20220357690A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220357690A1
公开(公告)日：2022-11-10
申请号：US17870193
申请日：2022-07-21
申请人： CANON KABUSHIKI KAISHA
发明人： Koichi Taniguchi
IPC分类号： G03G15/16
摘要： In an image forming apparatus 100, in a case that a relative position between an inner roller 32 and an outer member 41 with respect to a circumferential direction of the inner roller 32 is changed in a period from a state in which the outer member 41 is separated from a belt 31 until first transfer in a job for forming and outputting an image on a recording material S is started when the job is executed, said controller 150 controls a position changing mechanism 1 and a contact and separation mechanism 2 so that a contact operation for bringing the outer member 41 into contact with the belt 31 after changing the relative position.

33. 发明申请

US20220357688A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220357688A1
公开(公告)日：2022-11-10
申请号：US17870167
申请日：2022-07-21
申请人： CANON KABUSHIKI KAISHA
发明人： Koichi Taniguchi
IPC分类号： G03G15/16
摘要： An image forming apparatus 100, employs a constitution in which in a case that a relative position between an inner roller 32 and an outer member 41 with respect to a circumferential direction of the inner roller 32 is changed in a period after a preceding recording material S passed through a transfer portion N2 and until the recording material S subsequent to the preceding recording material S reaches the transfer portion N2 device execution of a job for forming and outputting images on a plurality of recording materials S, a controller 150 controls a position changing mechanism 1 so that the above-described relative position is changed in a state in which the outer member 41 contacts the intermediary transfer belt 31.

34. 发明申请

US20220350287A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220350287A1
公开(公告)日：2022-11-03
申请号：US17863562
申请日：2022-07-13
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoya Inuzuka
IPC分类号： G03G15/00 , G03G15/16
摘要： An image forming apparatus includes an image bearing member, an image forming portion, an endless belt, a plurality of stretching rollers including an inner roller, an outer roller, a position changing mechanism capable of changing a position of the inner roller to a first position and a second position positioned downstream of the first position with respect to a rotational direction of the endless belt, a feeding member, a feeding member driving portion, and a controller. A feeding start timing of a recording material by the feeding member depends on the position of the inner roller during transfer of a toner image onto the recording material.

35. 发明申请

US20220342350A1 INTERMEDIATE TRANSFER UNIT AND IMAGE FORMING APPARATUS THEREWITH 有权
公开(公告)号：US20220342350A1
公开(公告)日：2022-10-27
申请号：US17701458
申请日：2022-03-22
申请人： KYOCERA Document Solutions Inc.
发明人： Tatsuro ARATA
IPC分类号： G03G15/16
摘要： An intermediate transfer unit includes an intermediate transfer belt, a. driving roller, a. tension roller, and a roller supporting frame. The roller supporting frame includes first and second supporting frames, and has a coupling portion formed on it. The coupling portion includes a rotary shaft and a. shall hole. The roller supporting frame shifts from a first state to a second state by rotating the first supporting frame in the forward direction to have the intermediate transfer belt wound around it. The rotary shaft includes a projection. A shaft hole has a restricting wall portion. As the first supporting frame in the second state rotates in the forward direction, the projection makes contact with the restricting wall portion to restrict rotation of the first supporting frame in the forward direction.

36. 发明授权

US11480894B2 Image forming apparatus 有权
公开(公告)号：US11480894B2
公开(公告)日：2022-10-25
申请号：US17341819
申请日：2021-06-08
申请人： CANON KABUSHIKI KAISHA
发明人： Chikara Imaizumi
IPC分类号： G03G15/16
摘要： An image forming apparatus includes an image bearing member that bears a toner image, a transfer unit having an endless belt, a positioning unit that positions the transfer unit, and a secondary transfer member. The secondary transfer member is in touch with the endless belt to form a secondary transfer portion. When the toner image is transferred to the endless belt from the image bearing member, the secondary transfer member transfers the toner image from the endless belt at the secondary transfer portion to a transfer material. The positioning unit includes a first abutting face to position the transfer unit in a conveyance direction and a second abutting face to position the transfer unit in a direction opposite to the conveyance direction. An attaching/detaching direction of the transfer unit is a direction intersecting with a surface of the transfer material to which the toner image is transferred.

37. 发明申请

US20220317599A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220317599A1
公开(公告)日：2022-10-06
申请号：US17700811
申请日：2022-03-22
申请人： CANON KABUSHIKI KAISHA
发明人： Taisuke Matsuura
IPC分类号： G03G15/16 , G03G15/00
摘要： An image forming apparatus includes an image forming portion, an image bearing member, a transfer member, a voltage source, a density detecting portion, a display portion, a controller, and an operating portion. The controller is capable of executing an operation in a mode in which a test chart for adjusting a transfer voltage is outputted, and setting information on the transfer voltage set for during transfer on the basis of a detection result when the test chart is detected by the detecting portion is displayed at the display portion and is checked by user. The controller causes the display portion to display setting information on the basis of a correcting value and causes the user to check the setting information in the operation in the mode executed after the correcting value is inputted from the operating portion.

38. 发明申请

US20220308505A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220308505A1
公开(公告)日：2022-09-29
申请号：US17696179
申请日：2022-03-16
申请人： CANON KABUSHIKI KAISHA
发明人： Masato Kobayashi
IPC分类号： G03G15/16 , G03G15/00
摘要： An image forming apparatus includes an image forming portion, an image bearing member, a transfer member, a voltage applying portion, a detecting portion, and a controller capable of executing an operation in an adjustment mode in which a chart on which a plurality of test images are transferred by stepwise changing a test voltage applied to the transfer member by the applying portion is formed on a recording material and then a transfer voltage applied to the transfer member applied by the voltage applying portion during transfer of the toner image is adjusted. The controller is capable of changing a change width per level of the test voltage applied during formation of the chart, on the basis of a detection result of the detecting portion when the voltage is applied to the transfer member when the recording material on which the chart is formed is in the transfer portion.

39. 发明申请

US20220308496A1 ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220308496A1
公开(公告)日：2022-09-29
申请号：US17697503
申请日：2022-03-17
申请人： CANON KABUSHIKI KAISHA
发明人： Kazuaki Nagaoka , Toru Ishii
IPC分类号： G03G15/08 , G03G15/02 , G03G15/16
摘要： An electrophotographic member includes an electro-conductive substrate and an elastic layer containing inorganic particles and a binder resin. The electrophotographic member has a protrusion on an outer surface of the electrophotographic member containing the inorganic particles, At least part of the inorganic particles contained in the protrusion are exposed to a surface of the protrusion, and the binder resin is present among the inorganic particles contained in the protrusion. An elastic modulus E1 of the binder resin measured at a first region in a cross-section in a thickness direction of the elastic layer is equal to or above 1000 MPa.

40. 发明授权

US11442395B2 Transfer belt unit including belt frame, holder movable relative thereto, electrical contact surface held thereby, and storage element electrically connected thereto 有权
公开(公告)号：US11442395B2
公开(公告)日：2022-09-13
申请号：US17379324
申请日：2021-07-19
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Shuhei Hatano
IPC分类号： G03G21/16 , G03G15/08 , G03G15/00 , G03G15/16 , G03G21/18
摘要： A transfer belt unit includes a belt frame, a transfer belt, a storage element, an electrical contact surface, a pressing member, and a holder. The storage element stores therein information on the transfer belt. The electrical contact surface is electrically connected to the storage element. The pressing member presses the electrical contact surface in a pressing direction. The holder is positioned at the belt frame and holds the electrical contact surface. The holder is movable relative to the belt frame in a direction crossing the pressing direction.

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