Patent ID: 7189487
Filing Date: 2007-03-13
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an electrophotographic photoreceptor; a charger configured to charge the electrophotographic photoreceptor with light irradiation and bias application; an irradiator configured to irradiate the electrophotographic photoreceptor with imagewise light to form an electrostatic latent image thereon; an image developer configured to develop the electrostatic latent image with a developer including a toner to form a toner image thereon; and a transferer configured to transfer the toner image on to a transfer sheet, wherein the electrophotographic photoreceptor includes, an electroconductive substrate, a charge generation layer overlying the electroconductive substrate and configured to generate a first charge to form an electrostatic latent image when exposed to a first light having a first wavelength, and a charge generation and transport layer overlying the charge generation layer and configured to generate a second charge when exposed to a second light having a second wavelength different than the first wavelength and to transport the first and second charges to a surface of the photoreceptor.