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1. 发明授权

US12147190B2 Image forming apparatus 有权
公开(公告)号：US12147190B2
公开(公告)日：2024-11-19
申请号：US18156935
申请日：2023-01-19
申请人： CANON KABUSHIKI KAISHA
发明人： Takeo Kawanami , Akinori Mitsumata , Takehiro Miyashita , Katsuhiko Oba
IPC分类号： G03G15/20 , G03G15/08 , G03G21/20
CPC分类号： G03G21/206 , G03G15/0868 , G03G15/2017 , G03G15/2064
摘要： An image forming apparatus includes a photosensitive drum, a development device, a fixing device, an apparatus main body, and a fan including a rotating shaft that extends in a longitudinal direction of the photosensitive drum and a blade around the rotating shaft. The development device develops a toner image on the photosensitive drum. The fixing device fixes the toner image from the photosensitive drum to a recording material. The apparatus main body is provided with a discharge port from which the toner-fixed recording material is discharged. A length of the fan rotating shaft in the longitudinal direction is longer than a diameter of a rotational trajectory of the blade. The fan is provided on a downstream side of the fixing device in a discharge direction in which the recording material is discharged from the discharge port and overlaps a part of the development device when viewed in a vertical direction.

2. 发明公开

US20240184230A1 IMAGE FORMING SYSTEM 审中-公开
公开(公告)号：US20240184230A1
公开(公告)日：2024-06-06
申请号：US18442289
申请日：2024-02-15
申请人： CANON KABUSHIKI KAISHA
发明人： Kazuaki Nogami , Takeo Kawanami , Akinori Mitsumata , Hiroyuki Munetsugu , Goshi Ozaki
IPC分类号： G03G15/08
CPC分类号： G03G15/0886 , G03G15/0867 , G03G15/0874 , G03G2215/0663 , G03G2215/0673 , G03G2215/0692
摘要： An attached portion of an image forming apparatus includes a rotating member of which at least a part is exposed outside the image forming apparatus when the developer container is attached, and a rotation restricting mechanism that is movable between a restricting position to restrict rotation of the rotating member and an allowable position to allow rotation of the rotating member, and includes a restricting member that is at the restricting position when the developer container is not attached. The developer container is attached to the attached portion so that the discharging portion engaging portion and the shutter engaging portions are engaged with the frame engaged portions and the rotating member engaged portions respectively when the container shutter is in the close state, and the restricting member moves from the restricting position to the allowable position when the developer container is attached to the attached portion.

3. 发明公开

US20240176283A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20240176283A1
公开(公告)日：2024-05-30
申请号：US18505432
申请日：2023-11-09
申请人： CANON KABUSHIKI KAISHA
发明人： Yuichiro Okawa , Noritomo Yamaguchi , Kazuhiro Hosohara , Takeo Kawanami , Shinichi Nishida , Hiroyuki Munetsugu , Masahiro Suetsugu , Goshi Ozaki , Sohta Sugimoto , Mitsuhiro Sato
IPC分类号： G03G21/16 , G03G15/01
CPC分类号： G03G21/1647 , G03G15/0121 , G03G21/1676
摘要： An image forming apparatus on which a first toner container and a second toner container are mountable, includes an apparatus body, and a moving unit including a first developing unit and a second developing unit, the moving unit being configured to move with respect to the apparatus body between an internal position and an external position. The first developing unit and the second developing unit are configured to be replenished with the toner from the first toner container and the second toner container mounted on the image forming apparatus, respectively, in a state in which the moving unit is at the external position and supported by the apparatus body. The moving unit is configured not to be movable from the external position to the internal position in a state in which the first toner container and the second toner container are mounted on the image forming apparatus.

4. 发明公开

US20240053692A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20240053692A1
公开(公告)日：2024-02-15
申请号：US18492521
申请日：2023-10-23
申请人： CANON KABUSHIKI KAISHA
发明人： Tomohiro Suzuki , Takeo Kawanami , Akinori Mitsumata , Tomoya Tateishi
IPC分类号： G03G15/08
CPC分类号： G03G15/0894
摘要： An image forming apparatus is configured to allow a replenishment container to be detachably attached thereto. The image forming apparatus includes a drum unit including a photosensitive drum, and a development unit. The development unit includes a development roller, a reception portion configured to receive the replenishment container. The development unit is movable relative to the drum unit. The image forming apparatus further includes a housing including an opening/closing member movable between a cover position, at which the opening/closing member covers the reception portion, and an exposing position, at which the reception portion is exposed, and a support member configured to be movable between a support position, at which the support member supports the development unit, and a retracted position, at which the support member is retracted from the support position, in conjunction with the movement of the opening/closing member.

5. 发明授权

US11815832B2 Image forming apparatus comprising development unit for receiving replenishment container and retractable support for supporting the development unit 有权
公开(公告)号：US11815832B2
公开(公告)日：2023-11-14
申请号：US17530319
申请日：2021-11-18
申请人： CANON KABUSHIKI KAISHA
发明人： Tomohiro Suzuki , Takeo Kawanami , Akinori Mitsumata , Tomoya Tateishi
IPC分类号： G03G15/08
CPC分类号： G03G15/0894
摘要： An image forming apparatus is configured to allow a replenishment container to be detachably attached thereto. The image forming apparatus includes a drum unit including a photosensitive drum, and a development unit. The development unit includes a development roller, a reception portion configured to receive the replenishment container. The development unit is movable relative to the drum unit. The image forming apparatus further includes a housing including an opening/closing member movable between a cover position, at which the opening/closing member covers the reception portion, and an exposing position, at which the reception portion is exposed, and a support member configured to be movable between a support position, at which the support member supports the development unit, and a retracted position, at which the support member is retracted from the support position, in conjunction with the movement of the opening/closing member.

6. 发明申请

US20230053404A1 PULL-IN APPARATUS, IMAGE FORMING APPARATUS, SHEET ACCOMMODATING APPARATUS, AND DRAW-OUT UNIT 有权
公开(公告)号：US20230053404A1
公开(公告)日：2023-02-23
申请号：US17983336
申请日：2022-11-08
申请人： CANON KABUSHIKI KAISHA
发明人： Takehiro Hayashi , Takeo Kawanami , Fumiya Sawashima
IPC分类号： B65H1/26 , G03G21/16 , G03G21/18 , G03G15/00
摘要： A pull-in apparatus configured to pull in a unit toward a predetermined position in an apparatus body includes an arm member, a restriction member, a first action portion and a second action portion. The restriction member is movable between a lock position at which the restriction member restricts movement of the arm member in a first direction and a lock-release position at which the restriction member allows the movement of the arm member in the first direction. Movement of the restriction member from the lock position toward the lock-release position is restricted in a state in which the arm member is at a stand-by position, and is allowed in a state in which the arm member has been moved from the stand-by position in a second direction.

7. 发明授权

US11526124B2 Image forming apparatus having improved mountability of a cartridge while conserving space 有权
公开(公告)号：US11526124B2
公开(公告)日：2022-12-13
申请号：US17397054
申请日：2021-08-09
申请人： CANON KABUSHIKI KAISHA
发明人： Takeo Kawanami , Kazuaki Nogami , Takehiro Hayashi , Kenji Watanabe , Shunsuke Hijikata
IPC分类号： G03G21/18 , G03G21/16
摘要： In an image forming apparatus, a tray unit to which a cartridge is detachably mounted, and that is configured to be capable of moving between an internal position situated within the apparatus main body and an external position situated outside, includes first and second side plates configured to support the cartridge, and they are each made of metal, and include a supporting portion and an outer side portion, the supporting portions includes positioning portions configured to come into contact with the cartridge to position the cartridge as to an image forming position. The apparatus main body includes first and second pressing members each capable of moving between pressing positions at which the cartridge is pressed, and separated positions separated from the cartridge. The first and second pressing members are disposed each intersecting with imaginary planes that is orthogonal to the longitudinal direction and intersect the positioning portions.

8. 发明申请

US20210397122A1 ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND CATRIDGE 有权
公开(公告)号：US20210397122A1
公开(公告)日：2021-12-23
申请号：US17464821
申请日：2021-09-02
申请人： CANON KABUSHIKI KAISHA
发明人： Yuichi Fukui , Shinjiro Toba , Takeo Kawanami , Shinichi Nishida , Yasuyuki Egami
IPC分类号： G03G21/18
摘要： [Problem to be solved] To further develop a prior art cartridge.
[Solution] A cartridge includes a holding movable between a first position for stably holding a second unit in a spaced position by a first unit and a second position, and a contact force receiving portion capable of receiving a contact force for moving the holding portion from the first position toward the second position to move the second unit to a developing position, when the second unit is in the spaced position. When a predetermined tangential line is a tangential line of a surface of a photosensitive member at an intersection, which is more remote from a rotational center of a charging member, of intersections between a line connecting a rotational center of the charging member and a rotational center of the photosensitive member and the surface of the photosensitive member, as viewed along a direction of a rotational axis of the developing member, and the cartridge is divided by the predetermined tangential line into sections, a predetermined section is a section in which the rotational center of the charging member does not exist, and as viewed along the rotational axis of the developing member when the second unit is in the spaced position, the contact force receiving portion is in the predetermined section.

9. 发明申请

US20210096479A1 IMAGE FORMING APPARATUS AND CARTRIDGE THAT INCLUDE LIGHT GUIDE THAT GUIDES LIGHT 有权
公开(公告)号：US20210096479A1
公开(公告)日：2021-04-01
申请号：US17023113
申请日：2020-09-16
申请人： CANON KABUSHIKI KAISHA
发明人： Fumiya Sawashima , Takeo Kawanami
IPC分类号： G03G15/04 , G03G15/16
摘要： A charge removing unit emits light onto a surface of an image bearing member for removing charge on the surface. The charge removing unit includes a light source configured to emit the light, and a light guide that is configured to guide the light to irradiate the surface of the image bearing member with the light and has a cylindrical shape extending in an axial direction of the image bearing member. At both ends in a longitudinal direction of the light guide, one end portion and another end portion are respectively provided. The light is introduced to the one end portion. The another end portion includes an inclined surface inclining in a direction from the one end portion to the another end portion, toward a central axis of a circumference of the light guide.

10. 发明申请

US20200264554A1 POSITIONING APPARATUS AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200264554A1
公开(公告)日：2020-08-20
申请号：US16781565
申请日：2020-02-04
申请人： CANON KABUSHIKI KAISHA
发明人： Fumiya Sawashima , Takeo Kawanami , Shunsuke Hijikata , Kohei Koguchi , Yoichiro Iizuka
IPC分类号： G03G21/16
摘要： A positioning apparatus includes an apparatus body, a draw-out portion, and a positioning mechanism configured to position the draw-out portion at an attachment position with respect to the apparatus body, wherein the positioning mechanism includes a first engaging portion provided in one of the apparatus body and the draw-out portion, a first engaged portion provided in another of the apparatus body and the draw-out portion and configured to determine a position of the draw-out portion in an attachment direction by engaging with the first engaging portion, and wherein the first engaged portion includes an inclined surface that is inclined downward toward a downstream side in the attachment direction and causes a force in the attachment direction to act on the draw-out portion on a basis of a weight of the draw-out portion in a state in which the first engaged portion is engaged with the first engaging portion.

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