发明授权
- 专利标题： Developing unit, image forming apparatus, and process cartridge
- 专利标题（中）： 显影单元，成像设备和处理盒
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申请号： US13013224申请日： 2011-01-25
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公开(公告)号： US08503892B2公开(公告)日： 2013-08-06
- 发明人: Kohta Sakaya , Tomohiro Kubota , Tetsumaru Fujita , Atsushi Takehara , Naoki Nakatake
- 申请人： Kohta Sakaya , Tomohiro Kubota , Tetsumaru Fujita , Atsushi Takehara , Naoki Nakatake
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Limited
- 当前专利权人： Ricoh Company, Limited
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2010-022705 20100204
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A developing unit includes: a developer carrier; a toner supplying member having a porous surface layer; a toner storage storing therein toner; a stirring member that is rotated to stir the toner; a toner amount detecting unit that detects an amount of the toner; a toner supplying unit that supplies new toner to the toner storage based on a detection result; and a toner removing member that removes the toner carried in the porous surface layer, wherein the toner removing member is arranged in a separable and contactable manner from and with the porous surface layer, and the developing unit has a stirring mode in which the toner removing member is brought into contact with the porous surface layer, and the toner supplying member is rotated while the stirring member is rotated to stir the toner.
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