| 摘要 |
PURPOSE:To enhance electric chargeability, photodecay sensitivity, and resistance to residual potential by forming an interlayer made of a heat hardenable resin containing a specified disazo pigment. CONSTITUTION:The interlayer of an electrophotographic sensitive body obtained by successively laminating the interlayer, a charge generating layer, and a charge transfer layer on a conductive substrate is made of the heat hardenable resin containing one of the disazo pigments represented by formula I in which A is a group represented by formula II, III, or IV; X is an aromatic ring, such as a benzene or naphthalene ring, or an indole ring; Ar1 is an aromatic ring, such as a benzene or naphthalene ring, or a hetero ring, such as dibenzofuran, or the like; each of Ar2 and Ar3 is an aromatic ring, such as a benzene or naphthalene ring; each of R1 and R3 is H, lower alkyl, or the like; and R2 is lower alkyl, carboxyl, or the like. |
