IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an image forming device that suppresses surface potential variation after exposure in a photoreceptor surface even when uneven wear occurs on the photoreceptor surface. SOLUTION: This image forming device comprises: a photoreceptor including a charge generating layer and charge transporting layer on a conductive substrate and containing chlorogallium phthalocyanine pigment having diffraction peaks at 7.4°, 16.6°, 25.5°and 28.3°in the charge generating layer; a charging means; an exposing means; a toner image forming means; and a transferring means for transferring a toner image from the photoreceptor surface to a transfer medium. The image forming device establishes expression (1) (0.005×V0+8.1)×0.9≤E≤(0.005×V0+8.1)×1.1. Here, in expression (1), E shows the amount (mJ/m2) of exposure energy per unit area of the light radiated when the photoreceptor surface is exposed to form an electrostatic latent image. V0 shows surface potential (V) of the photoreceptor after charging and before exposure and has a value between -900 and -400 V. COPYRIGHT: (C)2009,JPO&INPIT