| 摘要 |
PROBLEM TO BE SOLVED: To always excellently form an image and to prevent a life of a photoreceptor from being shortened needlessly by grinding an organic photoreceptor drum at a grinding speed within a specified range at the time of forming a color image. SOLUTION: Toner removed by the cleaning blade 100a of a cleaning device 100 is stuck and carried by a grinding roller 100b and withdrawn to a recovering member through a scraper 115. The tension of a tension spring 114a is changed in accordance with the driving of a cam, and the abutting pressure of the roller 100b to the organic photoreceptor drum 10 is increased as the tension of the spring 114a is increased. As the tension of the spring 114a is decreased, the abutting pressure of the roller 100b to the drum 10 is decreased, and it is possible to release the abutting. The roller 100b grinds the drum 10 at the grinding speed for printing 0.5-5μm/10<4> at the time of forming the color image while abutting on the drum 10. |
