发明授权
- 专利标题: Electrophotographic photoreceptor with protruding inorganic insulator pieces and an electrophotographic apparatus utilizing the same
- 专利标题(中): 具有突出的无机绝缘体片的电子照相感光体和利用其的电子照相设备
-
申请号: US567180申请日: 1990-08-14
-
公开(公告)号: US5252418A公开(公告)日: 1993-10-12
- 发明人: Fuminori Ishikawa , Akira Sato , Kunihiro Tamahashi , Masatoshi Wakagi , Katsumi Tamura , Masanobu Hanazono , Mitsuyoshi Shoji , Takayuki Nakakawaji , Yutaka Ito , Shigeki Komatsuzaki , Motoo Akagi , Masaaki Imamura
- 申请人: Fuminori Ishikawa , Akira Sato , Kunihiro Tamahashi , Masatoshi Wakagi , Katsumi Tamura , Masanobu Hanazono , Mitsuyoshi Shoji , Takayuki Nakakawaji , Yutaka Ito , Shigeki Komatsuzaki , Motoo Akagi , Masaaki Imamura
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-217362 19890825; JPX2-67108 19900319
- 主分类号: G03G5/147
- IPC分类号: G03G5/147 ; G03G5/14
摘要:
An electrophotographic photoreceptor comprising a photoconductive layer comprising a photoconductor, a support for the photoconductive layer and a surface layer formed on the photoconductive layer and comprising a curable resin film and an inorganic insulator pieces having a size larger than the film thickness of the curable resin film. In order to prevent the image blurring of an a-Si:H photoreceptor, on the outermost surface of the photoreceptor was formed a surface layer having a structure in which inorganic insulator pieces have protruded from the curable resin film. Since the curable resin is of high resistance and shows no quality change by corona irradiation, and besides the protruding inorganic insulator pieces prevent the abrasion of the resin, the surface layer having a long life and excellent humidity resistance, durability for corona irradiation and abrasion resistance can be realized. Further, by covering the surface layer with a fluorine-containing lubricant, the surface layer having a low friction coefficient and excellent cleaning characteristics is obtained, and besides the resin constituting the surface layer absorbs little moisture. As a result, it becomes possible to use the a-Si:H photoreceptors without a heater. Also, the surface layer of the present invention can be removed and then re-formed.