Patent ID: 7095427

Claim:
An image forming apparatus comprising: an image bearing member having a surface layer, said surface layer including a charge transport layer, said charge transport layer having a thickness from 10 μm to 20 μm; an exposing unit that exposes said surface layer of said image bearing member to light so as to form a latent image, said exposing unit having a resolution greater than or equal to 600 dpi; a developing unit that develops said latent image on said image bearing member to form a toner layer that constitutes a toner image, and a transfer unit whose transfer voltage is in the range from 500 V to 2500 V, said transfer unit transferring said toner image to a media, wherein an electric charge Q (μC/g) of said toner layer per unit weight, an average thickness t (μm) of said toner layer, and a gap d (μm) between smallest dots corresponding to said resolution of said exposing unit satisfy the following relationship: 50.4 /d≦|Q/t|≦ 10.0.