Canon PC920 - Timing Chart for the Image Formation System

CHAPTER 4 IMAGE FORMATION SYSTEM
COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
4-3
Figure 4-102
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Copy Start key
ON
STBY INTR SCFW
forward
SCFWSCRV
Reverse
-625V
3200V
-400V
0.5sec.(approx.)
LSTR STBY
Main motor (M1)
Scanning lamp (LA1)
Primary AC bias
Transfer bias
Transfer cleaning bias
Transfer reference
bias (ATVC)
Static eliminator bias
Pre-registration roller
paper sensor (Q751)
Primary DC bias
Developing AC bias
Developing DC bias
Scanner
SCRV
-500V
0.6sec.(approx.)
0.6sec.(approx.)
B. Timing Chart for the Image Formation System
Basic Sequence of Operations (Direct, 2 copies, continuous)