| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent fogging by toner adhering and rotating with a photoreceptor in a cleaner-less image forming apparatus having a plurality of developing devices which collects toner left after transfer simultaneously with development. <P>SOLUTION: The image forming apparatus is configured such that ability of collecting the toner left after transfer of the developing device positioned on a downstream side is made higher than that of the developing device positioned on an upstream side in image formation. <P>COPYRIGHT: (C)2009,JPO&INPIT |
