3–32OPERATIONS AND TIMINGCOPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)SignalSCHPDescriptionRegistration clutch ONScanner reverse OFF 0.1 sec laterScanner sensorPS1 Scannerhome positionsensorScannerForward Reverses2. Relationship between Scanner Sensors and SignalsTable 3-201Reference:The timing at which the registration clutch is turned ON is determined in relation to when the Copy Startkey is pressed or when the scanner is moved forward.3. Basic Sequence of Scanner OperationstFigure 3-206LSTRINTRPower switchONCopy Start keyONSTBYWMUP SCFW SCRV SCFW SCRVAER* Scanner home positionsensor (PS1)Registration sensor (PS6)ScannerScanning lampForward Reverse*The scanner is returned to home position at power-on whenever the scanner is not at home position.Download service manual and resetter printer at http://printer1.blogspot.com
