Invention Grant
- Patent Title: Image forming apparatus
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Application No.: US15340583Application Date: 2016-11-01
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Publication No.: US09857734B2Publication Date: 2018-01-02
- Inventor: Takeshi Sakashita , Kenji Nakamura , Masanari Fujita , Yuuji Meguro , Takahiro Seki , Naoki Takai , Takuya Akiyama
- Applicant: Takeshi Sakashita , Kenji Nakamura , Masanari Fujita , Yuuji Meguro , Takahiro Seki , Naoki Takai , Takuya Akiyama
- 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: JP2015-222076 20151112
- Main IPC: G03G15/08
- IPC: G03G15/08 ; G03G15/16 ; G03G21/00

Abstract:
An image forming apparatus includes a plurality of image bearers, a plurality of developing devices, a plurality of first transfer devices disposed opposite the plurality of image bearers, a second transfer device, a cleaning device to remove toner remaining on the intermediate transferor after a secondary transfer process, and a processor to control the plurality of developing devices to perform a refresh process to discharge toner from the plurality of developing devices to the plurality of image bearers. Among toner of the colors, toner having a first circularity first reaches the cleaning device and toner having a second circularity higher than the first circularity subsequently reaches the cleaning device in the refresh process.
Public/Granted literature
- US20170139353A1 IMAGE FORMING APPARATUS Public/Granted day:2017-05-18
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