LAMINATED ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a laminated electrophotographic photoreceptor excellent in electric characteristics and abrasion resistance.SOLUTION: There is provided a laminated electrophotographic photoreceptor which has a charge generating layer having a charge generating agent, and a charge transport layer having a hole transport agent, a binder resin and an antioxidant, where the hole transport agent has a first hole transport agent and a second hole transport agent, an ionization potential (Ip (CGM)) of the charge generating agent, an ionization potential (Ip (first HTM)) of the first hole transport agent and an ionization potential (Ip (second HTM)) of the second hole transport agent satisfy the following expression (1): Ip (first HTM)