An electrophotographic image forming apparatus is disclosed that enables both photosensitive member and developer to be used to the full limit of their service lives. The image forming apparatus selectively adjusts one or another of either a surface potential setting of the photosensitive member...http://www.google.fr/patents/US5805956?utm_source=gb-gplus-shareBrevet US5805956 - Electrophotographic image forming apparatus capable of setting image forming conditions and method for setting image forming conditions in an electrophotographic image forming apparatus
Electrophotographic image forming apparatus capable of setting image forming ...