发明授权
- 专利标题： Development device, and image forming apparatus and process cartridge incorporating same
- 专利标题（中）： 显影装置，以及包含其的图像形成装置和处理盒
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申请号： US13359024申请日： 2012-01-26
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公开(公告)号： US08626034B2公开(公告)日： 2014-01-07
- 发明人: Toshio Koike , Yoshiyuki Fukuda , Yoshio Hattori , Atsushi Nakamoto , Hiroaki Okamoto
- 申请人： Toshio Koike , Yoshiyuki Fukuda , Yoshio Hattori , Atsushi Nakamoto , Hiroaki Okamoto
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： JP2011-043371 20110228
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A development device includes a developer container, a developer bearer to carry developer to a development range, a partition dividing at least partly the developer container into a supply compartment and a collecting compartment, with an end portion of the partition facing a circumferential surface of the developer bearer, a developer supply member in the supply compartment to supply the developer to the developer bearer, and a developer collecting member in the collecting compartment above the developer supply member, to receive the developer from the developer bearer. An opening is formed in a downstream end portion of the partition in a developer conveyance direction of the developer collecting member to cause the developer to fall to the supply compartment, and a width of the opening in a direction perpendicular to the axial direction increases toward downstream in the developer conveyance direction of the developer collecting member.
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