Patent ID: 7105259
Filing Date: 2006-09-12
Classification: C08K,G03G

Abstract:
1. An electrophotographic image forming method comprising: charging a photoreceptor; irradiating the photoreceptor with imagewise light to form an electrostatic latent image on the photoreceptor using a light source selected from the group consisting of laser diodes and light emitting diodes; developing the electrostatic latent image with a developer including a toner to form a toner image on the photoreceptor using a reverse development method; and transferring the toner image onto a receiving material, wherein the photoreceptor comprises: an electroconductive substrate; an undercoat layer located overlying the electroconductive substrate and comprising titanium oxide, said titanium oxide having an average particle diameter greater than 0.05 μm and less than 0.20 μm and comprising rutile titanium oxide in an amount of from 10 to 100% by weight based on total weight of the titanium oxide; and a photosensitive layer overlying the undercoat layer; wherein the titanium oxide has a purity of not less than 99.0% by weight.