Invention Grant
- Patent Title: Image forming apparatus
- Patent Title (中): 图像形成装置
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Application No.: US13991952Application Date: 2012-03-02
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Publication No.: US09268254B2Publication Date: 2016-02-23
- Inventor: Masafumi Monde , Toshikazu Tsuchiya , Hidetoshi Hanamoto , Tsutomu Ishida
- Applicant: Masafumi Monde , Toshikazu Tsuchiya , Hidetoshi Hanamoto , Tsutomu Ishida
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2011-045111 20110302; JP2011-045112 20110302
- International Application: PCT/JP2012/056050 WO 20120302
- International Announcement: WO2012/118234 WO 20120907
- Main IPC: G03G15/08
- IPC: G03G15/08
Abstract:
An image forming apparatus includes a developing unit for accommodating a developer, a rotatable member, rotatable in the developing unit, for stirring the developer, and a pressure-detecting portion for detecting a pressure applied by the rotatable member and for outputting a voltage signal corresponding to the pressure. The pressure-detecting portion is provided on the wall surface perpendicular to the rotational axis direction of the rotatable member in the developing unit. In addition, a discriminating portion discriminates an amount of the developer in the developing unit on the basis of a change in the voltage signal outputted from the pressure-detecting portion.
Public/Granted literature
- US20130266330A1 IMAGE FORMING APPARATUS Public/Granted day:2013-10-10
Information query
