ELECTROPHOTOGRAPHIC PHOTORECEPTOR, DEVICE UNIT PROVIDED WITH SAME AND ELECTROPHOTOGRAPHIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having very high sensitivity characteristics to long wavelength. SOLUTION: This electrophotographic photoreceptor has a photosensitive layer contg. crystal-form chloro-aluminum phthalocyanine on the electrically conductive substrate. The crystal-form chloro-aluminum phthalocyanine is obtd. by subjecting chloro-aluminum phthalocyanine together with an org. solvent and a resin binder to dispersion treatment and has the highest diffraction peak at 7.0 deg. Bragg angle (2θdeg.0.2 deg.) in X-ray diffraction with CuKα.