Electrophotographic photosensitive devices and manufacturing methods thereof

摘要

An improved electrophotographic photosensitive device is disclosed. The device comprises a photosensitive layer coupled to a conductive substrate. The photosensitive layer preferably includes a vinyl chloride resin and the vinyl chloride resin preferably comprises an acid esterified vinyl chloride polymer having polymer hydroxy groups, epoxy groups and strong acid radicals as substituent groups, so that the epoxy groups and the hydroxy groups are partially esterified.