Canon PC981 Service Manual - Page 356
A. General Timing Chart, Copyboard Type
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(A4, 2 copies, DIRECT, from cassette) Sequence Power switch ON STBY Copy Start key ON INTR AER SCFW SCRV 1 Main motor (M1) 2 Scanner / lens drive motor (M2) 3 Scanner home position sensor (PS1) 4 Lens home position sensor (PS2) 5 Lens solenoid (SL3) 6 Pickup clutch solenoid (SL1) 7 Cassette pickup solenoid (SL5) 8 Vertical path roller paper sensor (PS4) 9 Registration clutch solenoid (SL2) 10 Pre-registration roller paper sensor (Q751) 11 Scanning lamp (LA1) 12 Primary AC bias 13 Primary DC bias 14 Developing AC bias 15 Developing DC bias 16 Transfer bias 17 Static eliminator bias 18 Fixing heater (H1) 19 Scanner cooling fan (FM1) 20 Delivery sensor (PS3) : Scanner / lens drive motor (reverse) COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SCFW A. GENERAL TIMING CHART 1. COPYBOARD TYPE SCRV LSTR STBY A-1