Patent ID: 7977020

Claim:
An electrophotographic photoreceptor comprising laminating a monolayer type photosensitive layer containing a charge generation material and a charge transport material or a laminate type photosensitive layer obtained by laminating a charge generation layer containing a charge generation material and a charge transport layer containing a charge transport material in this order, on a conductive support, wherein the charge transport layer of the monolayer type photosensitive layer or laminate type photosensitive layer contains an enamine compound represented by the following formula (1): wherein Ar 1 and Ar 2 , which may be the same or different, respectively represent an aryl group which may have a substituent, a cycloalkyl group which may have a substituent or a monovalent heterocyclic residue which may have a substituent; Y 1 and Y 2 , which may be the same or different, represent a straight or branched chain alkylene group which may have a substituent; E represents an enamine group selected from the following formulae (i), (ii) and (iii): wherein Ar 3 , Ar 4 , Ar 5 and Ar 6 , which may be the same or different, respectively represent an aryl group which may have a substituent; R 1 represents an alkyl group which may have a substituent; R 2 represents a straight or branched chain alkylene group which may have a substituent, an oxygen atom or a sulfur atom.