| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coupling pin for a process cartridge which is enhanced in the yielding strength to pulling, more particularly, in strength capable of withstanding (not be pulled out) the vibration and impact exerted thereon in the process of distribution, and which has advantages in management, such as omissibility of stringent management under which a prescribed press-fitting strength is secured, in the periodical sampling inspection of the surface roughness of the coupling pin and the press-fitting strength of the coupling pin. <P>SOLUTION: The process cartridge is detachable from the image forming apparatus body, the process cartridge is constituted so that a 2nd frame for supporting a developing means for developing an electrostatic latent image formed on the electrophotographic photoreceptor drum is rotatably coupled to a 1st frame for supporting an electrophotographic photoreceptor drum, and regarding the coupling pin for the process cartridge arranged at each side part in a longitudinal direction in order to rotatably couple the 2nd frame to the 1st frame, at least a screw is partly formed in the longitudinal direction of the coupling pin. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
