Patent ID: 8213829

Claim:
A developing device removably mountable in an image forming apparatus having a transfer roller, the developing device comprising: a frame having a front end and a rear end; a memory mounted on the frame; a photosensitive body rotatably mounted to the frame; and a rotation guide part provided on a lower portion of the frame between the photosensitive body and the front end, the rotation guide part to guide a rotational motion of the developing device when the developing device is being separated from the image forming apparatus such that the rotation of the frame via the rotation guide part enables the photosensitive body to be disengaged from the transfer roller of the image forming apparatus, wherein a terminal electrically connected to the memory is positioned on the frame such that, when the rotation guide part guides a rotation of the frame before the developing device is separated from the image forming apparatus, the rotation of the frame via the rotation guide part allows the terminal to disengage from a terminal provided at the image forming apparatus together with the disengagement of the photosensitive body from the transfer roller of the image forming apparatus, and wherein the terminal is arranged on the frame such that the terminal disengages by moving in a downward direction with respect to the terminal of the image forming apparatus while the photosensitive body is arranged on the frame to disengage with the transfer roller by moving in an upward direction with respect to the transfer roller, during the rotation of the frame for removal of the developing device from the image forming apparatus.