| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having high sensitivity and high durability, which is applied to a high-resolution and high-speed electrophotographic device employing a positive charging system, and which exhibits excellent operational stability, prevents an image memory phenomenon or image defects due to cracks induced by a contact member or by contamination with fat and oil or sebum, and stably gives high picture qualities, a method for manufacturing the electrophotographic photoreceptor, and an electrophotographic photoreceptor using the electrophotographic photoreceptor.SOLUTION: The electrophotographic photoreceptor includes a charge transporting layer 2 comprising a hole transporting material and a binder resin, and a charge generating layer 3 comprising a charge generating material, a hole transporting material, an electron transporting material and a binder resin, successively layered on a conductive support body 1. A total amount of residual solvents included in the charge generating layer and the charge transporting layer is 50 μg/cmor less; a mass ratio of the electron transporting material to the hole transporting material included in the charge generating layer is 5:1 to 4:2; the charge transporting layer has a film thickness of 3 to 40 μm; the charge generating layer has a film thickness of 3 to 40 μm; and a moisture content percentage of the charge generating layer and the charge transporting layer as a whole is 0.05 to 1.5 mass%. |
