发明授权
US07457554B2 Image forming apparatus wherein an image forming region and a non-image forming region are charged with different potentials
失效
图像形成装置，其中图像形成区域和非图像形成区域被充入不同的电位
- 专利标题： Image forming apparatus wherein an image forming region and a non-image forming region are charged with different potentials
- 专利标题（中）： 图像形成装置，其中图像形成区域和非图像形成区域被充入不同的电位
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申请号： US11132343申请日： 2005-05-19
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公开(公告)号： US07457554B2公开(公告)日： 2008-11-25
- 发明人: Kohei Matsuda , Tetsuya Kobayashi , Shinya Yamamoto , Masato Koyanagi , Kentaro Kawata , Shinichi Agata
- 申请人： Kohei Matsuda , Tetsuya Kobayashi , Shinya Yamamoto , Masato Koyanagi , Kentaro Kawata , Shinichi Agata
- 申请人地址： JP 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： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2004-150565 20040520; JP2005-145531 20050518
- 主分类号： G03G15/02
- IPC分类号： G03G15/02
摘要：
An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed, a charging member, and a transfer member. A charging potential of the charging member is different between when the charging member provides a first region on the image bearing member with a potential and when the charging member provides a second region on the image bearing member with a potential, thus providing a predetermined potential difference between the first region and the second region. A third region on the image bearing member, with the transfer member being supplied with a voltage to provide a predetermined potential difference between a potential of the third region before being charged by the charging member and a potential of the third region after being charged by the charging member.
公开/授权文献
- US20050260006A1 Image forming apparatus 公开/授权日：2005-11-24
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