发明名称 IMAGE FORMING APPARATUS AND CONTROL METHOD
摘要 <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus and a control method, which forms a good image free from degradation in image quality by preventing developer from clogging between a developing roll and a photoreceptor, thereby rotation of a photoreceptor from being stopped. <P>SOLUTION: The image forming apparatus has: a rotating image holding body; a developing device which supplies a two-component developer to an electrostatic latent image formed on a surface of the image holding body, by a plurality of developing rolls comprising a forward rotation developing roll rotated in the same rotation direction as the image holding body and a reverse rotation developing roll rotated in a direction opposite to the rotation direction of the image holding body, to develop the electrostatic latent image into a toner image; and a control means which controls driving of the plurality of developing tolls and driving of the image holding body. The control means makes the image holding body to start driving when a prescribed time passes after the start of driving of the plurality of developing rolls. <P>COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010217863(A) 申请公布日期 2010.09.30
申请号 JP20090266730 申请日期 2009.11.24
申请人 RICOH CO LTD 发明人 HOKKYO TOMONARI;MAEDA HIROAKI;AKINAGA KATSUHIRO;YAMADA KOTARO
分类号 G03G21/14;G03G15/08 主分类号 G03G21/14
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