Patent ID: 6219504
Filing Date: 2001-04-17
Classification: G03G

Abstract:
A process cartridge detachably mountable in a main body of an image forming apparatus, said process cartridge comprising:an electrophotographic photosensitive member;a charging member for charging said electrophotographic photosensitive member, wherein said charging member is provided along a longitudinal direction of said electrophotographic photosensitive member;a frame for supporting said electrophotographic photosensitive member and said charging member;a plurality of first holes for taking in air, provided at one end portion of said frame in the longitudinal direction and opened at a position near one end portion of said charging member in the longitudinal direction; andmeans for preventing deformation of said frame due to the heat accumulating near said electrophotographic photosensitive member comprising: a plurality of second holes for discharging sufficient heat accumulated at a surrounding portion of the electrophotographic photosensitive member to prevent deformation of said frame, said plurality of second holes being provided at another end portion of said frame in the longitudinal direction and opened at a position near another end portion of said charging member in the longitudinal direction.