发明名称 |
Electrophotographic photoreceptor, process for producing the same, and image forming apparatus using same |
摘要 |
An object of the invention is to provide a highly characteristic image using an electrophotographic photoreceptor of which a charge-generating layer can be produced with a better coating property and which is highly sensitive and electrostatically highly stable in repeated use. The charge-generating layer of a function-separated type photoreceptor contains a n-type non-metallic phthalocyanine and a copolymer of vinyl chloride-vinyl acetate type. Particularly, the ratio of the tau -type non-metallic phthalocyanine to the copolymer of vinyl chloride-vinyl acetate type is fixed at 1/3-3/1 by weight. The thickness of the charge-generating layer is fixed at 0.1-0.6 mu m. As the copolymer of vinyl chloride-vinyl acetate type, copolymers of vinyl chloride-vinyl acetate, vinyl chloride-vinyl acetate-maleic acid, or vinyl chloride-vinyl acetate-vinyl alcohol are selected. Particularly, it is favorable to select those containing at least 10% by weight of the vinyl alcohol component. The charge-generating layer is formed with a liquid coating material using a ketone solvent as dispersant. The aforementioned photoreceptor is applied to an image-forming apparatus using an inversion development process.
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申请公布号 |
US6054237(A) |
申请公布日期 |
2000.04.25 |
申请号 |
US19980210785 |
申请日期 |
1998.12.15 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
ISHIDA, KAZUYA;MORIMOTO, KIYOFUMI;KATAYAMA, SATOSHI;TERAMOTO, TAKAHIRO;KAWAHARA, AKIHIKO;MORITA, KAZUSHIGE |
分类号 |
G03G5/00;C08K5/56;C08L27/06;C08L31/04;G03G5/05;G03G5/06;(IPC1-7):G03G5/06 |
主分类号 |
G03G5/00 |
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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