Patent ID: 7813671
Filing Date: 2010-10-12
Classification: G03G

Abstract:
1. A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, said process cartridge comprising: a drum unit having an electrophotographic photosensitive drum; and a developing unit rotatably connected with said drum unit at a center of rotation, said developing unit including a developing roller that develops an electrostatic latent image formed on said electrophotographic photosensitive drum with a developer, a developer accommodating portion accommodating the developer, a supply opening, extending in an axial direction of said developing roller, that supplies the developer to said developing roller from said developer accommodating portion, and a sealing member sealing said supply opening, wherein said supply opening is unsealable by pulling and removing said sealing member in the axial direction, wherein the center of rotation is within a width of said sealing member with respect to a direction perpendicular to the axial direction, as seen in a direction perpendicular to a surface of said sealing member.