Patent ID: 7308226
Filing Date: 2007-12-11
Classification: G03G

Abstract:
1. An image forming method of sequentially transferring toner images formed on an image carrier to an intermediate image transfer body, comprising: forming a multicolor toner image on said intermediate image transfer body by positioning the image carrier above the intermediate image transfer body; facing an image transfer roller towards an inside surface of said intermediate image transfer body; applying an image transfer bias when a toner image is transferred from said image carrier to said intermediate image transfer body; and controlling a nip width over which the image carrier and the intermediate image transfer body contact each other during image transfer by positioning rollers to be in contact with the intermediate image transfer body and be at both sides of the image transfer roller in an axial direction of the image transfer roller; and positioning said image transfer roller and the intermediate image transfer body so that the image transfer roller and the intermediate image transfer body are not in contact with each other during the image transfer.