COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)C. Controlling the ITD Cleaning RollerThe ITD cleaning roller is pushed against the intermediate transfer drum immediate-ly before secondary transfer.Normally, the ITD cleaning roller remains away from the intermediate transfer drum,and is forced against the intermediate transfer drum as needed.The DC controller PCB causes the ITD cleaning roller solenoid drive signal(CLNRON) to go ‘1’ at the appropriate timing; in response, the ITD cleaning roller sole-noid (SL1) turns on, the ITD cleaning roller cam starts to operate, and the ITD cleaningroller moves against the intermediate transfer drum.When secondary transfer ends and ITD cleaning is turned on, the DC controller PCBturns off the ITD cleaning roller solenoid (SL1) to move the ITD cleaning roller from theintermediate transfer drum.Figure 4-403CHAPTER 4 IMAGE FORMATION SYSTEM4-20SL1ITD cleaning rollerITD cleaning roller camITD cleaning roll solenoidIntermediatetransfer drumDownload free service manual at http://printer1.blogspot.com
