发明授权
US4974026A Reverse development electrophotographic apparatus and image forming
method using a dispersion-type organic photoconductor
失效
反向显影电子照相设备和使用分散型有机光电导体的图像形成方法
- 专利标题： Reverse development electrophotographic apparatus and image forming method using a dispersion-type organic photoconductor
- 专利标题（中）： 反向显影电子照相设备和使用分散型有机光电导体的图像形成方法
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申请号： US222406申请日： 1988-07-21
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公开(公告)号： US4974026A公开(公告)日： 1990-11-27
- 发明人: Akio Maruyama
- 申请人： Akio Maruyama
- 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： JPX62-186642 19870728
- 主分类号： G03G15/02
- IPC分类号： G03G15/02 ; G03G15/06
摘要：
An electrophotographic apparatus comprising a photosensitive member, charging means for providing a surface potential to the surface of the photosensitive member, image exposure means for exposing the photosensitive member to form an electrostatic latent image which comprises an unexposed dark part and a exposed light part, developing means including a developer-carrying member for providing a toner to the light part thereby to develop the latent image with the toner and bias application means for applying a bias voltage between the developer-carrying member and the photosensitive member surface to control a developing condition; the apparatus further comprising image regulation means for changing the surface potential in the dark part (Vd) in association with the change in DC component (V.sub.DC) of the bias voltage.
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