| 摘要 |
Disclosed is an electrophotographic photoreceptor having a high sensitivity, a high endurance and a high stability against repeated use which comprises a conductive support with a light-sensitive layer containing one or more hydrazone compounds represented by the following formula (I): wherein R1 represents an alkyl group of 5 or more carbon atoms, R2 represents a substituted or unsubstituted alkyl group, alkenyl group, aralkyl group, aryl group or heterocyclic group, and R3 and R4 each represent a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom.
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