| 摘要 |
PURPOSE:To clean well an electrophotographic photosensitive body, which has a smoother photosensitive body surface by setting not only the average roughness of the surface but also the recess and projection cycle, that is the average spacing between the recesses and projections, to a specified range. CONSTITUTION:The average surface roughness Ra of the photosensitive layer is within the range of a formula I, the recess and projection average spacing Sm, is within the range of a formula II, and Ra and Sm fulfill the relationship of a formula III. A doctor blade 2 is abutted on the surface of the photosensitive body 1, and by sliding by a sliding material 3, cleaning of developer 4 is carried out. Thus, when the surface roughness extent of the photosensitive body fulfills the relationships of the formulas I-III, and the cleaning is carried out with the existance of a sliding material, cleaning can be carried out well without generating any vibration in the blade. |
