发明授权
US5502548A Contact-type charging member which includes an insulating metal oxide in
a surface layer thereof
失效
在其表面层中包括绝缘金属氧化物的接触型充电构件
- 专利标题： Contact-type charging member which includes an insulating metal oxide in a surface layer thereof
- 专利标题（中）： 在其表面层中包括绝缘金属氧化物的接触型充电构件
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申请号： US405407申请日： 1995-03-15
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公开(公告)号： US5502548A公开(公告)日： 1996-03-26
- 发明人: Yasuyuki Suzuki , Takashi Yamashita
- 申请人： Yasuyuki Suzuki , Takashi Yamashita
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-295136 19921104
- 主分类号： G03G15/02
- IPC分类号： G03G15/02
摘要：
A charging member for use in a contact charging device which charges a charge-receiving member such as a photosensitive drum in a copier or printer by applying a voltage to the charging member and contacting the charging member to the charge-receiving member. The charging member includes at least an elastic layer and a surface layer disposed thereon which contacts the charge-receiving member. The surface layer includes at least a semiconductive resin and an insulating metal oxide contained in the semiconductive resin, and the surface layer has a maximum height of surface roughness (Rmax) of 10 .mu.m to 100 .mu.m.