Patent ID: 6275668
Filing Date: 2001-08-14
Classification: G03G

Abstract:
An electrical contact part for supplying a bias voltage to a developing roller usable in a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, which contains an electrophotographic photosensitive member, a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive member, an electroconductive flange engaged to one end portion of the developing roller, and a driving portion, provided at one end portion of the flange, for rotating the developing roller, said electrical contact part comprising:(a) a connecting portion electrically connectable with a cartridge-side electrode, which is provided in the process cartridge and which is connectable with a main assembly-side electrode provided in the main assembly of the apparatus when the process cartridge is detachably mounted to the main assembly of the apparatus; and(b) a projected portion projecting from a side opposite from a side at which said connecting portion is connectable to the cartridge-side electrode and insertable between the flange and the driving portion.