Patent ID: 7062199

Claim:
A remanufacturing method of remanufacturing a process cartridge comprising: (a) a step of preparing a used process cartridge which comprises a toner developing container, a cleaning container and pins for coupling said toner developing container and said cleaning container at opposite longitudinal ends of said process cartridge; said toner developing container including a toner accommodating portion, a toner supply opening, a developing roller and a developing blade; said cleaning container including an electrophotographic photosensitive drum; (b) a container separating step of separating said process cartridge into said toner developing container and said cleaning container by disengaging said pins from said process cartridge; (c) a developing roller dismounting step of dismounting said developing roller from said toner developing container separated by said container separating step; (d) a developing blade dismounting step of dismounting said developing blade from said toner developing container separated by said container separating step; (e) an elastic member mounting step of mounting an elastic member to a longitudinally inside of an end seal, the end seal being provided adjacent each of opposite longitudinal ends of a or said developing roller, at a position opposite from said toner accommodating portion with respect to said developing roller; (f) a flexible sheet mounting step of mounting a flexible sheet to a or said toner developing container so as to extend along the longitudinal direction of said developing roller when said developing roller is mounted to said toner developing container; (g) first and second side seal mounting step of mounting a first side seal continuously on a longitudinal end of said flexible sheet mounted on said toner developing container having the flexible sheet and on said toner developing container having the flexible sheet, and a second side seal continuously mounted on the other longitudinal end of said flexible sheet and on said toner developing container having flexible sheet; (h) a developing blade mounting step of mounting a or said developing blade on said toner developer container having the flexible sheet; (i) a developing roller mounting step of mounting a or said developing roller on said toner developer container having the flexible sheet; (j) a toner refilling step of refilling the toner into a or said toner accommodating portion of said toner developing container having said flexible sheet; and (k) a container coupling step of coupling said toner developing container having said flexible sheet with a or said cleaning container by engaging a or said pin into them.