COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)I. OUTLINEFigure 3-101*1 Reader controller PCB (when making prints with the reader unit installed).The video signals (DVDO0 through 7*) from the printer board1 are converted intoPWM video data signals (VDATA*; subjected to pulse width modulation on the DC con-troller PCB); then, they are converted into two sets of low-voltage differential signals(Note) with suppressed radiation noise, and are sent to the laser driver PCB.CHAPTER 3 LASER EXPOSURE SYSTEM3-1DSYNC* DTOP* DVDO0~7* DVCLK DCMD* DPRNT*Printer board*1BD mirrorScanner motorCollimating lensCylindrical lensImaging lens6-facet mirrorBD*BSAMPLEBSAMPLE*LENB* BDATA BDATA* SCMFG SCNDDC controller PCBVideo interface PCBLaser driverPCBReflecting mirrorBD PCBPhotosensitive drumDownload free service manual at http://printer1.blogspot.com
