電子写真感光体、プロセスカートリッジ及び電子写真装置

Japanese Patent JP7319858

B2

To provide an electrophotographic photoreceptor which offers both sufficiently high initial sensitivity as an electrophotographic photoreceptor and suppressed fluctuation in bright section potential during repetitive use.SOLUTION: An electrophotographic photoreceptor is provided, comprising a support body, a conductive layer, and a photosensitive layer disposed in the described order, where the conductive layer contains a binder material and metal oxide particles, each particle consisting of a core material containing titanium oxide and a coating layer covering the core material and containing titanium oxide. An oxygen deficiency rate A of the metal oxide particles, an oxygen deficiency rate B of the core material, and an oxygen deficiency rate C of the coating layer satisfy the following expressions (1) and (2): A≤2% ...(1), 10×B