Patent ID: 7970310

Claim:
An image forming apparatus comprising: a photosensitive body; a charging device which applies a charging bias voltage to said photosensitive body; an exposing device which exposes and forms an electrostatic image on said photosensitive body charged by said charging device; a developing device which charges a developer, including toner and carrier, and develops the electrostatic image on said photosensitive body at a developing portion; an intermediate transfer member which contacts with the photosensitive body; a primary transfer device which transfers a developed image, formed on said photosensitive body, to said intermediate transfer member by applying a transfer bias voltage; a primary cleaning device which cleans toner remaining on a surface of said photosensitive body not transferred to said intermediate transfer member by said primary transfer device; a secondary transfer device which transfers the developed image on said intermediate transfer member to a recording material; a secondary cleaning device which cleans toner remaining on a surface of said intermediate transfer member not transferred to the recording material by said secondary transfer device; and a control device which, in an ending process of an image forming operation and after stopping the application of the charging bias voltage in the ending process, stops the application of a developing bias voltage after a front of a non-charged area of said photosensitive body where the charging bias voltage is not applied passes said developing portion so as to cause toner to adhere at the non-charged area of said photosensitive body, and which applies a bias voltage having an opposite polarity from a bias voltage for an image forming process of the image forming operation to said primary transfer device, so as not to transfer the toner to said intermediate transfer member and so as to remove the toner by said primary cleaning device.