发明名称 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
摘要 An electrophotographic photosensitive member is provide which inhibits recovered toner from leaking out of the edge portion at the time of long-term use, and has good durability. Each of at least both edge portions of the surface layer of the electrophotographic photosensitive member has a region in which independent depressed portions are formed at a density of ten or more portions per 100 mum square. An average depth Rdv-A, an average short axis diameter Lpc-A, and an average long axis diameter Rpc-A, of the depressed portions are respectively in specific ranges. When an angle formed between the circumferential direction of the electrophotographic photosensitive member and the long axis of each of the depressed portions is represented by theta, the depressed portions are formed so that the angle theta satisfies the relationship of 90°<theta<180° toward the center of the electrophotographic photosensitive member.
申请公布号 US2009074460(A1) 申请公布日期 2009.03.19
申请号 US20080324040 申请日期 2008.11.26
申请人 CANON KABUSHIKI KAISHA 发明人 TANABE KAN;SAITO YOSHIHISA;OGAWA HIDEKI;AMAMIYA SHOJI;IKEZUE TATSUYA;MITSUI TAKAHIRO;OSHIRO MAYUMI;TAKIZAWA KUMIKO
分类号 G03G15/00 主分类号 G03G15/00
代理机构 代理人
主权项
地址