发明申请
US20110150525A1 DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FORMING APPARATUS INCLUDING SAME
有权
开发装置，包括它们的处理盒，以及包括它们的图像形成装置
- 专利标题： DEVELOPMENT DEVICE, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FORMING APPARATUS INCLUDING SAME
- 专利标题（中）： 开发装置，包括它们的处理盒，以及包括它们的图像形成装置
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申请号： US12952519申请日： 2010-11-23
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公开(公告)号： US20110150525A1公开(公告)日： 2011-06-23
- 发明人: Yoshihiro FUJIWARA , Yasuo Miyoshi , Hiroshi Hosokawa , Norio Kudo , Hiroaki Okamoto
- 申请人： Yoshihiro FUJIWARA , Yasuo Miyoshi , Hiroshi Hosokawa , Norio Kudo , Hiroaki Okamoto
- 优先权： JP2009-290420 20091222
- 主分类号： G03G21/16
- IPC分类号： G03G21/16 ; G03G15/08
摘要：
A development device includes a developer carrier, a supply compartment having a downstream end portion positioned outside the development area in the axial direction of the developer carrier, a collection compartment disposed lower than the supply compartment, first and second communication ports respectively formed in the downstream end portion and an upstream end portion of the supply compartment, a developer circulation unit including first and second developer conveyance members respectively provided in the supply compartment and the collection compartment, a toner supply port formed in an upper portion of the downstream end portion of the supply compartment, and an airflow path limiter provided in the downstream end portion of the supply compartment, closer to the development area than the toner supply port in the axial direction of the developer carrier, to restrict an airflow path above the developer in the downstream end portion of the supply compartment.
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