| 摘要 |
PROBLEM TO BE SOLVED: To easily perform exchanging and also to accurately uniformize a distance from the surface of a photoreceptor drum to the center of the rotation of the photoreceptor drum. SOLUTION: When the photoreceptor drum 2 is constituted of a cylindrical drum base body 16 having a photoreceptive layer on an outer surface and flange fitting parts 16a on both ends in a longitudinal direction, and a flange member 17 which has an outside diameter slightly smaller than the inside diameter of the part 16a and a guided part 17b capable of being fitted into the part 16a; projecting parts 17c where a distance from the center of rotation of the photoreceptor 2 is nearly the same as the inside diameter of the part 16a are provided on the plural places of the part 17b. The member 17 is fitted to the base body 16 so as to insert the parts 17c into the parts 16a. |
