CHAPTER 3 EXPOSURE SYSTEMCOPYRIGHT © 1999 CANON INC. CANON NP6317 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)3-6C. Basic Scanner OperationFigure 3-302!!POWER switch ONWMUPCOPY START key ONSCRV SCRVSTBY INTR SCFW SCFWAERLSTRForwardScanner homeposition sensor(Q5)signalPre-registration papersensor (Q2) signalScanner movementScanning lampReverse