JP2007047670A5 - - Google Patents

Claims (2)

At least an image bearing member, the image bearing member charging means for a static-a visible image and an exposure means for forming an electrostatic latent image by exposing the charged said image bearing member, the electrostatic latent image as a preparative toner image A developing unit for transferring the toner image to a transfer material; and a downstream side of the transfer unit with respect to the rotation direction of the image carrier, and the image carrier is transferred onto the image carrier after transfer by the transfer unit Cleaning means for removing transfer residual toner remaining on the toner image, and pre-charging exposure means for exposing the image carrier downstream of the transfer means and upstream of the cleaning means with respect to the rotation direction of the image carrier. In an image forming apparatus comprising:
An image forming apparatus, wherein the amount of light of the pre-charging exposure unit is increased or decreased according to a moving speed of the surface of the image carrier . The charging pre-exposure means performs full exposure when the moving speed of the surface of the image carrier is a predetermined speed and performs pre-exposure with a predetermined amount of light, and when the moving speed of the image carrier surface is lower than the predetermined speed. The image forming apparatus according to claim 1, wherein the pre-exposure is performed with a light amount smaller than a predetermined light amount by pulse light emission.