COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)IV. TRANSFERA. OutlineThe transfer block consists of the intermediate transfer drum, secondary pre-transfercharging assembly, secondary transfer belt, separation static eliminator, and ITD clean-ing roller, and serves to transfer the toner image from the photosensitive drum to paperand to remove residual toner.The intermediate transfer drum is rotated by the drum motor (M2), and the secondarytransfer belt is rotated by the main motor (M4). When the secondary transfer belt clutch(CL4) turns on, the secondary transfer belt is forced against the intermediate transferdrum. When the ITD cleaning roller solenoid (SL1) turns on, on the other hand, the ITDcleaning roller is forced against the intermediate transfer drum.Figure 4-401CHAPTER 4 IMAGE FORMATION SYSTEM4-18STRCLD*CLNRONM4M2CL4SL1DC controller PCBPhotosensitivedrum cartridgephoto-sensitivedrumITD cleaningrollerITD cleaningroller solenoidIntermediatetransfer drumSecondary pre-transfercharging assemblySeparationstaticeliminatorSecondarytransfer beltMain motorSecondary transferbelt clutchDrum motorMaim motor drive signalDrum motor drive signalDownload free service manual at http://printer1.blogspot.com