Patent ID: 7139502

Claim:
A process cartridge detachably mountable to an electrophotographic image forming apparatus main body, said process cartridge comprising: an electrophotographic photosensitive drum; a cleaning member configured and positioned to remove developer adhering to said electrophotographic photosensitive drum; a removed developer containing portion configured and positioned to contain the developer removed by said cleaning member; a filter member mounted to said removed developer containing portion, and configured and positioned to allow ventilation between an interior and an exterior of said removed developer containing portion; a recess provided on said removed developer containing portion and covered with said filter member; a communicating portion provided on said removed developer containing portion configured and positioned to communicate between the interior of said removed developer containing portion and said recess to ventilate therebetween; a first ventilation route which, when an airflow generated in said removed developer containing portion passes through said filter member to reach the exterior, causes the airflow to pass said filter member from an exposed portion of said filter member exposed on an inner side of said removed developer containing portion; and a second ventilation route which, when an airflow generated in said removed developer containing portion passes through said filter member to reach the exterior, causes the airflow to pass said filter member from an exposed portion of said filter member exposed on an inner side of said recess.