Patent ID: 7354686

Claim:
An electrophotographic photoconductor, comprising: an electroconductive substrate; a charge generation layer; and a charge transport layer formed by using a halogen-free solvent, arranged in this order, wherein the charge generation layer comprises: a charge generation material in the form of particles having an average particle diameter smaller than a surface roughness of a plane where the charge generation layer is arranged; and a polyvinyl acetal resin having a ratio Mw/Mn of a weight-average molecular weight Mw to a number-average molecular weight Mn is 2.2 or more; wherein the charge transport layer comprises polycarbonate having a triarylamine structure in at least one of principal chain and side chain thereof; wherein the charge generation material is a titanyl phthalocyanine; and wherein the titanyl phthalocyanine shows a maximum diffraction peak at 27.2Â±0.2Â° and a peak as a lowest-angle peak at 7.3Â±0.2Â° and shows no peak in a range between 7.4Â° and 9.4Â° in terms of Bragg 2Î¸ angle to the CuK-Î± characteristic X-ray wavelength at 0.1542 nm.