FIXING METHOD OF BEARING MEMBER FOR CYLINDRICAL BODY, FIXING STRUCTURE OF BEARING MEMBER FOR CYLINDRICAL BODY, ELECTROPHOTOGRAPHIC PHOTORECEPTOR WITH BEARING MEMBER, PRINT CARTRIDGE AND IMAGE FORMING DEVICE

摘要

PURPOSE: To provide a fixing method and a fixing structure of a bearing member on a cylindrical body improving contact accuracy of the cylindrical body of an electrophotographic photoreceptor or the like, a printer cartridge, and an image forming device. CONSTITUTION: A cylindrical body 10 is pressed to be spread in an external diametric direction based on diametric spreading action by elasticity of a first and a second insertion member 16, 20 when it is inserted into the cylindrical body 10 from its end part, the cylindrical unit 10 and a bearing member 12, 14 fitted to its external peripheral surface are tightened. A second insertion member 18 is inserted into the first insertion member 16, a fourth insertion member 22 is inserted into a third insertion member 20.