Invention Grant
- Patent Title: Process cartridge and electrophotographic apparatus
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Application No.: US16934159Application Date: 2020-07-21
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Publication No.: US11256187B2Publication Date: 2022-02-22
- Inventor: Harunobu Ogaki , Kazunori Noguchi , Takeshi Murakami , Takashi Kenmoku , Yuzo Seino , Kenta Kamikura
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2019-137131 20190725,JPJP2020-113418 20200630
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G5/147 ; G03G9/097 ; G03G15/08

Abstract:
Provided are a process cartridge and an electrophotographic apparatus each of which is reduced in fogging for reducing a toner consumption. Specifically, provided is a process cartridge, which is removably mounted onto a main body of an electrophotographic apparatus, the process cartridge including: a developing unit containing a toner; and an electrophotographic photosensitive member, wherein the toner is a toner including a toner particle, and has a polyvalent acid metal salt on at least part of a surface of the toner particle, wherein the polyvalent acid metal salt includes at least one kind of metal element selected from metal elements belonging to from Group 3 to Group 13, and wherein a surface layer of the electrophotographic photosensitive member contains a resin including a siloxane segment.
Public/Granted literature
- US20210026261A1 PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2021-01-28
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