发明名称 |
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS |
摘要 |
An electrophotographic photosensitive member in which image deletion is hardly produced, and a process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member are provided. For this, a surface of the electrophotographic photosensitive member includes a plurality of depressed portions and a portion other than the depressed portions, each of the depressed portions having a depth of 0.5 to 5μm and an opening longest diameter of 20 to 80μm; when a 500μm×500μm square region is disposed in an arbitrary position of the surface of the electrophotographic photosensitive member, the area of the depressed portions in the 500μm×500μm square region is from 10000 to 90000μm2, and the area of a flat part contained in the portion other than the depressed portions is from 80000 to 240000μm2. |
申请公布号 |
EP2715454(A4) |
申请公布日期 |
2014.11.05 |
申请号 |
EP20120792563 |
申请日期 |
2012.05.28 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TAKAHASHI, KOJI;UEMATSU, HIROKI;MITSUI, TAKAHIRO;KAWAI, YASUHIRO;NISHIDA, TSUTOMU;OGAWA, HIDEKI |
分类号 |
G03G5/147;G03G5/05;G03G15/00;G03G21/00 |
主分类号 |
G03G5/147 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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