FLANGE MEMBER FOR PHOTORECEPTOR DRUM, PHOTORECEPTOR DRUM USING THE SAME AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a flange member for a photoreceptor drum with which the photoreceptor drum having a gear part free from the shift of an axis and the deformation. SOLUTION: The flange member 16 has a fitting part 20 being fitted to a fitting hole 1406 of a drum main body 14, a gear part 22 formed at the end part in the longitudinal direction of the fitting part 20 and a shoulder part 24 formed at the end face of the gear part 22. The shoulder part 24 continues in the peripheral direction on the same axis as that of the fitting part 20 and projects in the direction of the end part of the drum main body 14. An annular abutting face 2402 continuing in the peripheral direction on the same axis as that of the fitting part 20 and capable of being abutted on the end face 1408 of the end part of the drum main body 14 is formed at the tip part of the shoulder part 24. The abutting face 2402 is formed so as to cross orthogonally with respect to the center axis of rotation of the flange member 16 in a high accuracy.