ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND PROCESS FOR PRODUCING THE PHOTORECEPTOR

摘要

Disclosed is a positive electrification laminate-type electrophotographic photoreceptor having excellent durability and cost effectiveness.  Also disclosed is a process for producing the photoreceptor. The electrophotographic photoreceptor comprises an electroconductive substrate (1) and a photosensitive layer (5) provided on the electroconductive substrate (1).  The photosensitive layer (5) is of a positive electrification laminate type comprising at least a charge transport layer (3) and a charge generating layer (4) stacked in this order.  The charge generating layer (4) contains at least a resin binder, a charge generating agent, a space filling agent, and an electron transport agent.  The charge transport layer (3) contains at least polystyrene as a resin binder and a hole transport agent.  The charge transport layer (3) has a mineral oil content that is not more than 1% by mass of polystyrene content.