Patent ID: 9256198
Filing Date: 2016-02-09
CPC Classification: G03G

Claim Text:
1. An electrophotographic image forming apparatus comprising: a body comprising an opening; a photoreceptor cartridge attached to, or detached from, the body through the opening, and comprising a mounting portion; and a development cartridge attached to, or detached from, the mounting portion through the opening while the photoreceptor cartridge is mounted in the body, wherein: the photoreceptor cartridge comprises a photoreceptor where an electrostatic latent image is formed, the development cartridge contains toner to be supplied to the electrostatic latent image, and comprises a development roller for developing the electrostatic latent image by supplying the toner contained therein to the electrostatic latent image, the mounting portion comprises a first guide rail, and a second guide rail, the development cartridge respectively comprises a first guide protrusion and a second guide protrusion in both side portions thereof to be respectively guided by the first and the second guide rails, and the first and the second guide protrusions have different protrusion amounts from the both side portions, and wherein the second guide rail is branched from the first guide rail.