Patent ID: 6253036
Filing Date: 2001-06-26
Classification: G03G

Abstract:
A process cartridge detachably mountable to an electrophotographic image forming apparatus, said process cartridge comprising:(a) an electrophotographic photosensitive member;(b) process means actable on said electrophotographic photosensitive member;(c) a measuring electrode member having input side and output side electrodes having at least one juxtaposed portion, said measuring electrode member being disposed at such a position that it is contacted to a developer;(d) a reference electrode member having input side and output side electrodes having at least one juxtaposed portion, said reference electrode member being disposed at such a position that it is out of contact with the developer;(e) an output contact for said measuring electrode member, connected electrically to said output side electrode of said measuring electrode member;(f) an output contact for said reference electrode member, connected electrically to said output side electrode of said reference electrode member; and(g) a common input contact connected electrically to said input side electrodes of said measuring electrode member and said reference electrode member.