Patent ID: 7546074
Filing Date: 2009-06-09
Classification: G03G

Abstract:
1. An image forming apparatus including: at least one image forming unit, comprising, an image carrier to which toner is applied to form a toner image, and wherein the primary transfer belt is configured to form a primary transfer nip with the image carrier; and a secondary transferer comprising, wherein the image forming apparatus further comprises: a bias applicator to apply a bias voltage having a same polarity as the normal charge polarity of the toner to the primary transfer belt, in a position downstream of the primary transfer bias applicator in a rotation direction of the primary transfer belt, a contact start site at which the recording medium starts to contact the toner image, located upstream of the secondary transfer nip in the rotation direction of the primary transfer belt, and an electrode to form an electric field at the contact start site to increase an electrostatic attraction between the primary transfer belt and the toner having the normal charge polarity.