Invention Grant
- Patent Title: Image forming apparatus and image forming method
- Patent Title (中): 图像形成装置及图像形成方法
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Application No.: US12943336Application Date: 2010-11-10
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Publication No.: US08532545B2Publication Date: 2013-09-10
- Inventor: Tomonari Hokkyoh , Takashi Suzuki , Koutarou Yamada , Katsuhiro Akinaga
- Applicant: Tomonari Hokkyoh , Takashi Suzuki , Koutarou Yamada , Katsuhiro Akinaga
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-265719 20091120
- Main IPC: G03G15/09
- IPC: G03G15/09
Abstract:
A developing device in an image forming apparatus includes: a first developer carrier that rotates in a same direction as a rotating direction of an image carrier of the image forming apparatus so as to supply developer to the image carrier; and a second developer carrier that rotates in a direction opposite to the rotating direction of the image carrier so as to supply the developer to the image carrier. The developing device simultaneously performs a refreshing operation of performing replacement of the developer and a filming removal operation of causing the image carrier to rotate idle while forming an image for use in the refreshing operation and causing the first and second developer carriers to rotate in their respective rotating directions.
Public/Granted literature
- US20110123233A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD Public/Granted day:2011-05-26
Information query
