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

PROBLEM TO BE SOLVED: 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. SOLUTION: 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.