III. SCANNER DRIVE SYSTEMA. Scanner Movement1. Outline of MovementThe scanner is moved forward or in reverse by changing the direction of rotation ofthe scanner motor (M3).The speed of rotation of the scanner motor when the scanner is moving forwardvaries according to the selected reproduction ratio.The speed of the scanner motor when the scanner is moving in reverse is 2.9 timesthe speed when the scanner is moving forward regardless of the selected reproductionratio.Figure 3-301Scanner homeposition sensor(PS1)Scanner originalleading edge 1sensor (PS3)Signal plateScanner originalleading edge 2sensor (PS4)Scanner motorDC controller PCBNo. 1 mirror mountNo. 2/No. 3mirror mountSCHPSCDP1SCDP2Scanner home position signalOriginal leading edgedetection signal 1Original leading edgedetection signal 2M3ForwardCHAPTER 3 EXPOSURE SYSTEM3-6 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
