Invention Grant
- Patent Title: Developing device and image forming apparatus incorporating same
- Patent Title (中): 显影装置和包含其的图像形成装置
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Application No.: US14193372Application Date: 2014-02-28
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Publication No.: US09176430B2Publication Date: 2015-11-03
- Inventor: Hideo Yoshizawa , Noriyuki Kimura , Yoshihiro Fujiwara , Yuki Oshikawa , Sohichi Abe
- Applicant: Hideo Yoshizawa , Noriyuki Kimura , Yoshihiro Fujiwara , Yuki Oshikawa , Sohichi Abe
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-050432 20130313
- Main IPC: G03G21/00
- IPC: G03G21/00 ; G03G15/08 ; G03G15/09
Abstract:
A developing device includes a developer bearer to carry developer, disposed facing an image bearer, a developer conveyance member disposed facing the developer bearer, to agitate and supply developer to the developer bearer, a decompression portion surrounded by upper walls of the developing device and including multiple vents arranged in a longitudinal direction of the developing device and a filter. A number of the multiple vents is greater in either end portion than in a center portion in the longitudinal direction of the developing device.
Public/Granted literature
- US20140270838A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME Public/Granted day:2014-09-18
Information query
