| 摘要 |
<P>PROBLEM TO BE SOLVED: To uniformize image density in an image forming apparatus. <P>SOLUTION: The shape of a butting roller to regulate a distance between a developing sleeve and a photosensitive drum is made elliptic, and the butting roller is rotated and controlled, so that the distance S-D between the developing sleeve and the photosensitive drum is changed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
