Invention Grant
- Patent Title: Electrophotographic process cartridge and electrophotographic apparatus
- Patent Title (中): 电子照相处理盒和电子照相设备
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Application No.: US14308396Application Date: 2014-06-18
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Publication No.: US09274496B2Publication Date: 2016-03-01
- Inventor: Noboru Miyagawa , Satoshi Koide , Takehiko Aoyama , Daisuke Tanaka
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper and Scinto
- Priority: JP2013-014877 20130129
- Main IPC: G03G15/02
- IPC: G03G15/02 ; G03G21/18 ; G03G5/05 ; G03G5/147 ; G03G15/00

Abstract:
Uneven charging is improved, and production of a banding image attributed to a slip between the charging member and the electrophotographic photosensitive member is suppressed. An electrophotographic process cartridge including a charging member and an electrophotographic photosensitive member which is electrically charged upon being brought into contact with the charging member, wherein the charging member includes a electro-conductive substrate and a surface layer formed on the electro-conductive substrate; the surface layer contains at least a binder resin, an electron conductive agent, and a resin particle having a plurality of pores inside thereof; the surface of the surface layer has a protrusion derived from the resin particle; the electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support; and the surface layer of the electrophotographic photosensitive member contains a specific component.
Public/Granted literature
- US20140295336A1 ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2014-10-02
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