Directly or through the undercoating layer on purosesuka - toritsuji and the electrophotography

摘要

PROBLEM TO BE SOLVED: To improve electrification ability and sensitivity and to ensure stability of potential characteristics by using a specified compd. as an org. electron transferring material in a photosensitive layer. ;SOLUTION: The electrophotographic photoreceptor has a photosensitive layer contg. at least an electric charge generating material, an org. hole transferring material and an org. electron transferring material dispersed in a bonding resin. The org. electron transferring material is a compd. represented by formula I, wherein R₁-R₃ are each -(CH=CH)_p-NO₂, -(CH=CH)_q-R₄ or a group represented by formula H, (p) and (q) are each 0, 1 or 2, (r) is 0 or 1, R₄ and R₅ are each an arom. cyclic group having a nitro group or a heterocyclic group having a nitro group, R₆ is alkyl, aralkyl which may have a substituent, an arom. cyclic group or a heterocyclic group and X is divalent arom. cyclic hydrocarbon which may have a substituent or a residue required to form satd. hydrocarbon together with adjacent C atoms.;COPYRIGHT: (C)1999,JPO