ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS USING IT, AND PROCESSING CARTRIDGE

摘要

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having sufficient abrasion resistance, and providing stable satisfactory image quality with superior gradation over a long period, an image forming apparatus with high durability and high image quality using it, and a processing cartridge. SOLUTION: This electrophotographic photoreceptor is used for an image forming method for forming electrostatic latent images on the surface by exposure and contains a stage of developing the latent images, and has at least photoreceptive layer formed on a conductive substrate and a surface protective layer. The surface protective layer has a charge transport function, and is formed by curing by radiation polymerization in an atmosphere of an oxygen content of 5% or less of radiation polymerizable components. The photoreceptor is formed to satisfy a relation, 0.7