发明授权
US5239343A Developing apparatus with regulating member having magnetic and
non-magnetic members
失效
具有磁性和非磁性构件的调节构件的显影装置
- 专利标题： Developing apparatus with regulating member having magnetic and non-magnetic members
- 专利标题（中）： 具有磁性和非磁性构件的调节构件的显影装置
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申请号： US660152申请日： 1991-02-20
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公开(公告)号： US5239343A公开(公告)日： 1993-08-24
- 发明人: Yuji Sakemi , Hatsuo Tajima , Kenji Okado , Masahiro Inoue
- 申请人： Yuji Sakemi , Hatsuo Tajima , Kenji Okado , Masahiro Inoue
- 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： JPX62-218241 19870831
- 主分类号： G03G15/09
- IPC分类号： G03G15/09
摘要：
A developing apparatus includes a developer layer thickness regulating zone downstream of one of magnetic poles of a stationary magnet disposed inside a developing sleeve, with respect to the rotational direction of the sleeve. In the regulating zone, there are provided a magnetic member and a non-magnetic member to regulate the layer thickness of the developer containing magnetic carrier particles and toner particles on the sleeve. The magnetic member has a width of not less than 1 mm and not more than 10 mm and a thickness of not less than 0.2 mm and not more than 3 mm.