COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 2 BASIC OPERATION2-18Reference:For the sequence used to make prints when the reader unit is installed, see theReader Unit Service Manual.Table 2-102From when thePRNT* signal arrivesfrom the printer boardto when the Bk tonercartridge is ready fordevelopment and thecartridge motor stops.From when initial rota-tion ends to whenpaper reaches theregistration roller afterthe end of primarytransfer.From when the regis-tration roller starts torotate to when paperis picked up onceagain and the mainmotor stops.PurposeTo stabilize the sensi-tivity of the photosen-sitive drum in prepa-ration for printing.Also, to prepare fordevelopment by tonercartridges.To form an image onthe photosensitivedrum based onVDO*0 through 7 fromthe video controller;then, to turn it into avisible image withtoner and to transfer itonto the intermediatetransfer drum.To fully discharge thepaper after secondarytransfer and fixing.Also, to execute ITDcleaning.RemarksITD cleaning is exe-cuted for each print.(Cleaning is execut-ed also duringPRINT in continuousprinting mode.)INTR (initialrotation)PRINT (print)LSTRPeriodDownload free service manual at http://printer1.blogspot.com