Patent ID: 9182731
Filing Date: 2015-11-10
Classification: G03G

Abstract:
1. An end-side member to be arranged at an end of a photoreceptor drum unit which is detachably attached to an image forming apparatus body, the image forming apparatus body including a drive shaft having a concave portion, wherein the concave portion is a hole having a triangular cross-sectional shape and twisted in an extending direction of an axial line of the drive shaft and a projection member projecting from the concave portion along the axis of the drive shaft, the end-side member comprising: a convex-shaped bearing member which is engageable with and disengageable from the concave portion, wherein a depression to be engaged with a rim of an opening of the concave portion is formed in at least a part of an outer circumferential surface of the bearing member, wherein a hole extends along an axis of the end-side member, and wherein the projection member that projects from the concave portion is configured to be inserted into the hole.