发明授权
US06658227B2 Development method apparatus, image formation and process cartridge for suppressing variation in toner charge
有权
用于抑制调色剂电荷变化的显影方法装置，图像形成和处理盒
- 专利标题： Development method apparatus, image formation and process cartridge for suppressing variation in toner charge
- 专利标题（中）： 用于抑制调色剂电荷变化的显影方法装置，图像形成和处理盒
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申请号： US10188756申请日： 2002-07-05
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公开(公告)号： US06658227B2公开(公告)日： 2003-12-02
- 发明人: Hajime Oyama , Tsukuru Kai , Katsuhiro Aoki , Takashi Hodoshima , Yasuo Miyoshi , Ichiro Kadota
- 申请人： Hajime Oyama , Tsukuru Kai , Katsuhiro Aoki , Takashi Hodoshima , Yasuo Miyoshi , Ichiro Kadota
- 优先权： JP2001-206615 20010706; JP2002-174092 20020614
- 主分类号： G03F1508
- IPC分类号： G03F1508
摘要：
The development is performed under a condition that |Q2|−|Q1|/|Q1≦±0.45. Here, Q1 denotes an average amount of charge on toner held on a development roller and carried toward a development region immediately before development. Q2 denotes an average amount of charge on toner immediately before development held and carried toward the development region in the state immediately after development of an electrostatic latent image on a development drum. This is effective to allow the amount of charge q/m on toner held on the development roller to have a variation rate of 45% or below and an afterimage rate R within 2%.