AZOBENZENE DERIVATIVE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR USING THE SAME, AND IMAGE FORMATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an azobenzene derivative which can give sufficient light fastness to an electrophotographic photoreceptor without harmful effects on its electrical characteristics by including the derivative in a photosensitive layer of the photoreceptor, and also to provide the photoreceptor having excellent electrical characteristics and sufficient light fastness, and an image formation apparatus. SOLUTION: This azobenzene derivative is represented by formula (I) (wherein Ar1and Ar2are each independently an arylene group which may have a substituent having≤0.20 of the substituent constantσmof substituted benzene in Hammet's rule; R1is an amino group which may have a substituent; and R2is an alkenyl group which may have a substituent). The electrophotographic photoreceptor has the photosensitive layer formed on a conductive support while containing the azobenzene derivative, and is installed in the image formation apparatus. COPYRIGHT: (C)2005,JPO&NCIPI