SHAFT MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

摘要

An end member is arranged at the end of a columnar rotor attached to the main body of an image formation device, the end member including a tubular bearing member and a shaft member held by the bearing member. The shaft member comprises: a rotary shaft pivoting within the range of up to 18° relative to a direction along the axial line of the bearing member; a torque receiving member arranged at one end of the rotary shaft and equipped with an engagement member engaged with the drive shaft of the main body of an image formation device; and a regulating member which, when pressed, engages with or disengages from the rotary shaft or the torque receiving member to thereby switch between an attitude that causes the engagement member to engage with the drive shaft and an attitude that causes the engagement member to disengage from the drive shaft.