METHOD FOR FIXING BEARING MEMBER FOR CYLINDRICAL SUBSTRATE, STRUCTURE FOR FIXING BEARING MEMBER FOR CYLINDRICAL SUBSTRATE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR HAVING BEARING MEMBER, PRINT CARTRIDGE, AND APPARATUS FOR FORMING IMAGE

摘要

A method for fixing and a structure for fixing a bearing member for a cylindrical substrate, a print cartridge and an apparatus for forming an image are provided, in which the deflection precision of the cylindrical substrate, such as an electrophotographic photoreceptor, is improved. A cylindrical substrate is expanded toward the outer periphery based on the expanding function caused by elasticity of a first inserting member and a second inserting member upon inserting into the cylindrical substrate from ends of the cylindrical substrate, so as to clamp the cylindrical member and bearing members interdigitated on the outer periphery of the cylindrical substrate. A second inserting member is inserted into the first inserting member.