公开(公告)号：US5204202A

公开(公告)日：1993-04-20

申请号：US494527

申请日：1990-03-16

申请人： Fuminori Ishikawa ,  Kunihiro Tamahashi ,  Shigeharu Onuma ,  Masatoshi Wakagi ,  Masanobu Hanazono ,  Mitsuyoshi Shoji ,  Takayuki Nakakawaji ,  Yutaka Ito ,  Shigeki Komatsuzaki ,  Chiaki Yamabishi

发明人： Fuminori Ishikawa ,  Kunihiro Tamahashi ,  Shigeharu Onuma ,  Masatoshi Wakagi ,  Masanobu Hanazono ,  Mitsuyoshi Shoji ,  Takayuki Nakakawaji ,  Yutaka Ito ,  Shigeki Komatsuzaki ,  Chiaki Yamabishi

IPC分类号： G03G5/00 ,  G03G5/08 ,  G03G5/147

CPC分类号： G03G5/005 ,  G03G5/14704

摘要： An electrophotographic photosensitive element, e.g. for a photocopier or laser printer, comprises a substrate and a plurality of layers on the substrate including a photoconductive layer of a-Si:H and a protective and lubricating layer which is outermost from said substrate. To provide wear resistance and long life-time of the protective and lubricating layer, this layer comprises a microporous solid material having a pore structure which extends substantially over the whole thickness of the material and a hydrophobic lubricant carried by said solid material. The lubricant includes a liquid film and often times a non-particulate solid film, and provides at least part of the outer surface of the element and is present also in the pores of said microporous solid material.