Patent ID: RE42189

Claim:
A single-layer type electrophotosensitive material comprising a conductive substrate and a photosensitive layer formed on the conductive substrate, characterized in that the photosensitive layer contains a phthalocyanine compound as an electric charge generating material, a hole transferring material and an electron transferring material in a binder resin, and that a difference in absolute value between a plus polarity sensitivity and a minus polarity sensitivity measured under the conditions of an exposure wavelength of 780 nm and an exposure energy of 1.0 μJ/cm 2 is not more than 500 V 312 V, wherein the single-layer type electrophotosensitive material is used in a method including charging the electrophotosensitive material, exposing an image to form a static latent image, developing the static image to form a toner image, and transferring the toner image along a forward direction of the electrophotosensitive material, the method not including a charge neutralizing step .