| 摘要 |
<p>An electrophotographic photoreceptor which is excellent in electrical characteristics and image characteristics even when the content of a charge-transporting substance therein is low and which changes little in properties with fluctuations in ambient conditions and is reduced in deterioration, i.e., has high durability; and an apparatus for image formation which has the photoreceptor. The electrophotographic receptor comprises a conductive support and, formed thereon, a charge-transporting layer and a charge-generating layer, and is characterized in that the charge-transporting layer comprises a charge-transporting substance represented by the following general formula (1) and a binder resin and the proportion of the charge-transporting substance to the binder resin (charge-transporting substance/binder resin) is from 5/100 to 45/100 by mass.(1)(In the general formula (1), Ar<SUP>1</SUP> represents optionally substituted arylene; Ar<SUP>2</SUP>, Ar<SUP>3</SUP>, Ar<SUP>4</SUP>, and Ar<SUP>5</SUP> each represents optionally substituted aryl; and n is an integer of 3-6.)</p> |
