Patent ID: 7324776
Filing Date: 2008-01-29
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a photosensitive body; a charger to charge a surface of the photosensitive body; an exposure apparatus to form an electrostatic latent image on the surface of the photosensitive body; a developing apparatus to develop the electrostatic latent image on the photosensitive body utilizing toner; a transferring apparatus to transfer a toner image from the photosensitive body onto a to-be-transferred body; a contact-rotating member which is conductive and contacts the photosensitive body at a position downstream of the transferring apparatus and upstream of the charger in respect to a moving direction of the surface of the photosensitive body, to temporarily collect at least a portion of toner remaining on the photosensitive body without being transferred, and to expel the collected toner directly onto the photosensitive body; an electrode facing the contact-rotating member at a position other than the contact position of the contact-rotating member and the photosensitive body; and a first voltage applying section to apply voltage to the electrode, wherein a polarity of the voltage applied to the electrode by the first voltage applying section with respect to an average voltage of the surface of the photosensitive body after transferring is the same as a charging polarity of the toner at developing.