Electrophotographic image forming apparatus having charge transport layer with matrix-domain structure and charging member having concavity and protrusion

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United States of America Patent

PATENT NO 9274442
APP PUB NO 20150277244A1
SERIAL NO

14662228

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Abstract

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Provided an electrophotographic image forming apparatus comprising an electrophotographic photosensitive member and a charging member. The electrophotographic photosensitive member includes a charge transport layer as a surface layer having a matrix-domain structure including specific resins. The charging member comprises an electro-conductive substrate, and an electro-conductive elastic layer. The electro-conductive elastic layer comprises a binder, and holding a bowl-shaped resin particle having an opening, so that at least a part of the bowl-shaped resin particle is exposed, and the charging member has a concavity derived from the opening of the bowl-shaped resin particle on the surface thereof, and a protrusion derived from an edge of the opening of the bowl-shaped resin particle on the surface thereof.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anezaki, Takashi Hiratsuka, JP 43 742
Aoyama, Takehiko Suntou-gun, JP 18 145
Kumoi, Hirofumi Suntou-gun, JP 13 106
Maruyama, Akihiro Mishima, JP 48 368
Miura, Daisuke Tokyo, JP 73 533
Miyagawa, Noboru Suntou-gun, JP 18 156
Ogaki, Harunobu Suntou-gun, JP 67 1473
Sato, Taichi Numazu, JP 142 1885
Taniguchi, Tomohito Suntou-gun, JP 25 289
Uematsu, Atsushi Fuji, JP 17 130
Watanabe, Masahiro Mishima, JP 556 6799
Yamamoto, Yuki Tokyo, JP 266 2696

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