How re-production of the process cartridge, decomposition methods, assembly methods, positioning coupling device, and process cartridge

摘要

A disassembling method for a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. wherein the process cartridge includes covering members connected to the drum supporting frame and the developer container at ends of the drum supporting frame and the developer accommodating container with respect to a longitudinal direction of the electrophotographic photosensitive drum, the disassembling method including a step of cutting the cover member adjacent to a connecting portion between the cover member and the drum supporting frame and a connecting portion between the cover member and the developer accommodating container along an outer wall of the covering member.