Invention Grant
- Patent Title: Developing device having light transmitting member for detecting amount of developer
- Patent Title (中): 具有用于检测显影剂量的透光部件的显影装置
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Application No.: US12468623Application Date: 2009-05-19
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Publication No.: US08208838B2Publication Date: 2012-06-26
- Inventor: Hideki Kakuta , Tetsuo Furukawa
- Applicant: Hideki Kakuta , Tetsuo Furukawa
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-138041 20080527; JP2009-109390 20090428
- Main IPC: G03G15/08
- IPC: G03G15/08
Abstract:
In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member.
Public/Granted literature
- US20090297178A1 DEVELOPING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS Public/Granted day:2009-12-03
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