COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)Step 10 (intermediate transfer drum cleaning)In this step, different biases are applied to the intermediate transfer drum and the pho-tosensitive drum to return the residual toner (charged to a uniform potential by the clean-ing roller) existing on the intermediate transfer drum back to the photosensitive drum. Theresulting difference in potential between the photosensitive drum and the intermediatetransfer drum causes the residual toner to move from the intermediate transfer drum tothe transfer drum.CHAPTER 1 GENERAL DESCRIPTION1-32Intermediate transferdrumITD cleaning rollerPhotosensitive drumPrimary charging rollerWaste toner casePhotosensitivedrum cartridgePrimary chargingbiasITD cleaning camCharged residual tonerDC biasIntermediate transfer drum potential > Photosensitive drum potentialFigure 1-813Download free service manual at http://printer1.blogspot.com
