Patent ID: 6064849
Filing Date: 2000-05-16
Classification: G03G

Abstract:
An image forming apparatus for forming a color image with plural colors of toner in accordance with an input image signal, the image forming apparatus comprising:a rotatable image carrier having a shaft as a rotation axis;an image writing means for forming an electrostatic latent image on the image carrier in accordance with the image signal;a developing means for applying a developing bias to the image carrier to visualize the latent image as a toner image with the plural colors of toner;a transfer belt an outer surface of which is contacted with an outer peripheral surface of the image carrier while being conveyed in a predetermined conveying direction along a predetermined loop passage;a rotatable transfer roller having a shaft as a rotation axis, the transfer roller disposed opposite to the image carrier across the transfer belt for urging the transfer belt toward the image carrier at a transferring position;a friction reducing means for reducing friction between the image carrier and the transfer belt before a leading end portion of the toner image for a first color arrives at the transferring position; anda bias applying means for applying a transfer bias to the transfer roller to transfer the visualized toner image onto the transfer belt to serve as the friction reducing means.