Patent ID: 9182739
Filing Date: 2015-11-10
Classification: G03G

Abstract:
1. An electrophotographic image forming apparatus comprising: a body comprising an opening and a first coupler; a photoreceptor cartridge comprising a second coupler connected to the first coupler, a first gear connected to the second coupler, and a mounting portion, and attached to or detached from the body through the opening; a development cartridge comprising a second gear connected to the first gear, and attached to or detached from the mounting portion through the opening in a state where the photoreceptor cartridge is mounted in the body; a first guide protrusion disposed on both side portions of the development cartridge; and a first accommodation portion provided at the photoreceptor cartridge and in which the first guide protrusion is accommodated, wherein the first accommodation portion comprises a retreat preventing portion disposed at a removal direction of the first guide protrusion and supporting the first guide protrusion, and wherein an angle formed by the retreat preventing portion and a line connecting centers of the first and second gears is larger than a pressure angle of the first and second gears.