Patent ID: 6136483
Filing Date: 2000-10-24
Classification: G03G

Abstract:
An electrophotographic photoconductor comprising an electroconductive substrate, and a charge generating layer including a charge generating material and a charge transporting layer including a charge transporting material, said charge generating layer and charge transporting layer being overlaid and formed overlying one side of the electroconductive substrate, wherein the charge generating material comprises an asymmetric disazo pigment and a metal-free phthalocyanine pigment, and wherein the ratio of the asymmetric disazo pigment to the metal-free phthalocyanine pigment is from 1.5:1 to 5:1 by weight and the asymmetric disazo pigment has the following formula (I):Cp1--N.dbd.N--A--N.dbd.N--Cp2 (I)wherein A represents a divalent group which is connected to each nitrogen atom of the adjacent azo groups through a carbon atom of said A group; and Cp1 and Cp2 independently represents a residual group of a coupler, wherein Cp1 is different from Cp2.