CHAPTER 4 IMAGE FORMATION SYSTEMCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 4-3Figure 4-102 Copy Start keyONSTBY INTR SCFWforwardSCFWSCRVReverse3200VLSTR STBYMain motor (M1)Scanning lamp (LA1)Pre-exposure lampTransfer biasTransfer cleaning biasTransfer referencebias (ATVC)Static eliminator biasPre-registration rollerpaper sensor (Q751)Primary biasDeveloping AC biasDeveloping DC biasScannerSCRV-500V0.6sec.(approx.)B. Timing Chart for the Image Formation SystemBasic Sequence of Operations (Direct, 2 copies, continuous)