ELECTRICAL PHOTOGRAPHIC PHOTOSENSITIVE MATERIAL WITH EXCELLENT LIFETIME PROTERTY AND ELECTRIFICATION HOMOGENIETY OBTAINING EXCELLENT PICTURE QUALITY FOR LONG TIME, AND ELECTRIC PHOTOGRAPHIC IMAGE FORMING APPARATUS AND ELECTROPHOTOGRAPHY CARTRIDGE ADOPTING THE SAME

摘要

PURPOSE: An electrical photographic photosensitive material is provided to have excellent electric charge smudge property even when thick charge transport layer is adopted by improving the response speed.;CONSTITUTION: A stack electrical photographic photosensitive material comprises an electrical conductive support, an undercoat layer, a charge generating layer and a charge transporting layer. The characteristic response time of photosensitive material is more than 10msec and less than 85msec, and the thickness of the charge transport layer of the photosensitive material is 18micrometers to 45 micrometers. The characteristic response time is defined as the shorted response time in rage between specific photoinduction discharge curve(PIDC) produced response time. The response time is defined as the elapsed time from the stack electrical photographic layer applied on exposure to the time applied on the phenomenon. The charge generation layer comprises phthalocyanine compound charge generation material and binder in 1:0.3-1:4 weight ratio. The charge transport layer comprises the charge transfer material and binger in 1:0.5-1:2 weight ratio.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Surface potential Vo (V); (BB) Time(sec)