Patent ID: 7725051

Claim:
A process cartridge of an image forming apparatus, which can be detachably mounted in an image forming apparatus body, the process cartridge comprising: at least one photosensitive body on which an electrostatic latent image is formed, and a developing member for developing the electrostatic latent image; and a housing receiving and supporting the at least one photosensitive body and the developing member, wherein the housing comprises, first and second guide protrusions outwardly protruding respectively from a first surface and a second surface opposite the first surface of the housing in order to position the housing in a mounting position as the process cartridge is mounted in the image forming apparatus body, and the first and second guide protrusions formed perpendicular to a direction in which the process cartridge is mounted in the image forming apparatus body, and form guide members for guiding the housing into the mounting position, and a mount and dismount supporting part formed on a bottom surface of the housing, perpendicular to the first and the second surfaces of the housing in order to support rotation of the housing as the process cartridge is mounted in or dismounted from the image forming apparatus body.