| abstract |
An electrophotographic photosensitive member comprises a layer containing a hydrazone compound represented by the following formula (1) or (2): <IMAGE> Formula (1) <IMAGE> Formula (2) wherein, Z is an atomic group necessary to complete a substituted or unsubstituted heterocyclic ring; R11, R12, R21, R22 and R23 represent substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aryl, and the combinations of R11 with R12 and of R22 with R23 can form each a pyrrolidine ring, piperidine ring, or morpholine ring; n is 1 or 2; and A is a monovalent heterocyclic compound residue. |