COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)F. Photosensitive Drum CleaningIn the primary transfer step, not all toner on the photosensitive drum is transferred tothe intermediate transfer drum, but some remains on the drum. The same is true of thesecondary transfer step, in which not all toner on the intermediate transfer drum is trans-ferred to paper—residual toner remains on the intermediate transfer drum after ITDcleaning.In the photosensitive drum cleaning block, the surface of the photosensitive drum iscleaned in preparation for the next printing run, thus ensuring continuous reproduction ofsharp images.Step 11 (photosensitive drum cleaning)In this step, the residual toner on the drum surface is scraped off by a cleaning bladein preparation for the next printing run. The scraped toner is collected by a scoop-upsheet, and is sent to the waste toner case by the waste toner feeding roller 1, waste tonerfeedscrew, and waste toner feeding roller 2.CHAPTER 1 GENERAL DESCRIPTION1-33 yyyyyyyyyyyyzzzzzzzzzzzz{{{{{{{{{{{{{{{{||||||||||||||||Cleaning bladePhotosensitive drumWaste tonerStirring plateWaste toner caseWaste toner feeding roller 2Waste toner screwWaste toner feeding roller 1Scoop-up sheetFigure 1-814Download free service manual at http://printer1.blogspot.com
