Patent ID: 7135262
Filing Date: 2006-11-14
Classification: G03G

Abstract:
1. A method of forming a toner image, comprising: electrically charging a photoreceptor containing an organic photosensitive material; imagewise exposing the photoreceptor so that a latent image is formed on the photoreceptor; developing the latent image with toner so that a toner image is formed on the photoreceptor by a reversal development; wherein the photoreceptor comprises a charge generation layer containing an N-type charge generation material, a charge transportation layer containing a charge transportation material and has a thickness of from 5 to 15 μm and an interlayer; the toner contains colored particles comprising a resin and a colorant, and the colored particles have a ratio, Dv the reversal development is performed under condition satisfying the following expression: E: Electrical field intensity applied to the organic photoreceptor that is a quotient of potential V in an unexposed area of the photoreceptor at a time of development divided by layer thickness of total thickness of the interlayer, charge generation layer and the charge transportation layer of the photoreceptor in V/μm.