Patent ID: 7912404

Claim:
A cartridge detachably mountable to an electrophotographic image forming apparatus main body for forming an image on a recording medium, the electrophotographic image forming apparatus main body having a main body guide, a restraining unit provided movably with respect to the main body guide, and a main body abutting portion, the cartridge comprising: a frame; a guided portion protruding from said frame so as to be guided by the main body guide, and abutting the restraining unit as said cartridge is being mounted to the image forming apparatus main body so as to be restrained from moving to a downstream side in a mounting direction; and a moving member provided movably with respect to said frame, and abutting the main body abutting portion so as to be moved to act on the restraining unit, and thereby moving the restraining unit, which the guided portion abuts, to an allowable position for allowing said guided portion to move to the downstream side in the mounting direction when said cartridge is mounted to the apparatus.