3. Basic Sequence of OperationsThe distance over which the scanner moves is determined by the microprocessorbased on the copy size, reproduction ratio, and copying mode.The microprocessor computes the dimensions of the original when determining thedistance over which the scanner moves forward.Figure 3-302Ratio key ONScanner motor drivesignal (M3ON)Scanner forwardsignal (SCFW)Scanner stop signal(M3BLK)Blanking exposurelampScanner homeposition sensor (PS1)Lens drive motor(M4, M5)Scanner motor (M3)INTR AER SCFW SCRV LSTR STBYScanner originalleading edge 1sensor (PS3)Scanning lamp (LA1)STBY*2 Brake *2 BrakeCopy Start key ON*1FD RS*1 Moves the lens according to the selected reproduction ratio and copy size.*2 The degree of braking may be adjusted in service mode (*3*).COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 3 EXPOSURE SYSTEM3-8Download service manual and resetter printer at http://printer1.blogspot.com
