Patent ID: 6853823

Claim:
An image forming apparatus comprising: an electrophotographic photoreceptor comprising: an electroconductive substrate; a charge generation layer overlying the electroconductive substrate; a first charge transport layer overlying the charge generation layer, the first charge transport layer comprising a first charge transport material and a first binder resin: and a second charge transport layer overlying the first charge transport layer, the second charge transport layer comprising a filler, a second charge transport material and a second binder resin, wherein the first and second charge transport layers have a total thickness of from about 5 to about 18 μm, wherein a weight ratio of the first charge transport material to the first binder resin is greater than a weight ratio of the second charge transport material to the second binder resin, and wherein a thickness of the first charge transport layer is greater than a thickness of the second charge transport layer; a charger configured to charge the electrophotographic photoreceptor; an irradiator configured to irradiate the electrophotographic photoreceptor to form an electrostatic latent image thereon; an image developer configured to develop the electrostatic latent image with a developer comprising a toner adapted to form a toner image on the electrophotographic photoreceptor; and a transferer configured to transfer the toner image onto at least one of an intermediate transferer and a transfer sheet, wherein a non-irradiated part of the photoreceptor has a potential of from about −300 to about −600 V.