发明名称 |
CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS |
摘要 |
Provided is a charging member capable of suppressing the occurrence of an image defect due to the non-uniform abrasion of a photosensitive member and a stain, in a long-term use. The charging member includes an electro-conductive elastic layer as a surface layer. The electro-conductive elastic layer contains a binder and a bowl-shaped resin particle having an opening. The surface of the charging member has a concavity and a protrusion derived from the bowl-shaped resin particle. The relations represented by the following formulae are satisfied, wherein, when the charging member is pressed onto a glass plate with 100 (g) load, S1 is the average value of contact areas, d1 is the average value of heights of spaces formed in a contact region; and when the load is changed to 500 (g), S5 is the average value of contact areas, d5 is the average value of heights of spaces. |
申请公布号 |
WO2016159387(A1) |
申请公布日期 |
2016.10.06 |
申请号 |
WO2016JP61187 |
申请日期 |
2016.03.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
UEMATSU, Atsushi;TANIGUCHI, Tomohito;WATANABE, Masahiro;MIYAGAWA, Noboru;SATO, Taichi;AOYAMA, Takehiko |
分类号 |
G03G15/02 |
主分类号 |
G03G15/02 |
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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