Patent ID: 7068965
Filing Date: 2006-06-27
Classification: G03G

Abstract:
1. A developing cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, said cartridge comprising: a cartridge frame; a developing roller configured and positioned to develop an electrostatic latent image formed on an electrophotographic photosensitive drum; a one-end frame groove provided at one longitudinal end of said cartridge frame; a one-end bearing member configured and positioned to rotatably support a shaft provided at one longitudinal end of said developing roller extending in a longitudinal direction of said cartridge frame; a one-end bearing member cylinder, which is provided on said one-end bearing member and which has an outer surface engaged with an inner surface of said one-end frame groove; a one-end side cover provided at one longitudinal end of said cartridge frame and configured and positioned to cover said one-end bearing member; and a one-end side cover projection provided inside said one-end side cover and engaged with an inner surface of said one-end bearing member cylinder, which is engaged with the inner surface of said one-end frame groove.