发明授权
- 专利标题： Developing apparatus featuring a developer carrying member with an elastic surface layer
- 专利标题（中）： 具有显影剂承载构件的显影装置具有弹性表面层
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申请号： US11011119申请日： 2004-12-15
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公开(公告)号： US07233758B2公开(公告)日： 2007-06-19
- 发明人: Hikaru Osada , Kouichi Okuda , Yasushi Shimizu , Yasunori Chigono , Kenya Ogawa , Shuji Moriya , Kazunari Hagiwara
- 申请人： Hikaru Osada , Kouichi Okuda , Yasushi Shimizu , Yasunori Chigono , Kenya Ogawa , Shuji Moriya , Kazunari Hagiwara
- 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： JP2003-416768 20031215
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with the developer; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member; a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein the developer carrying member is provided with a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and wherein, the developer is an one component magnetic toner having an average circularity not less than 0.965, and an amount of the developer per unit area of the developer regulated by the regulating member is 5-14 g/m2, and an amount of electric charge thereof is 10-50 μC/g.
公开/授权文献
- US20050152718A1 Developing apparatus 公开/授权日：2005-07-14
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