Canon CANOSCAN D660U Service Manual page 28

CHAPTER 2
3. Document scanning sequence
2 - 8
Standby
Document scan
is required?
YES
Calculates the amount of
horizontal scan data and
the number of vertical scan
motor pulse
Sets scan parameter to ASIC,
and initializes buffer RAM
Moves scanning unit
to scan start position
Scanning unit moved?
YES
Starts document scan
3
Figure 2-7-1
COPYRIGHT © 2000 CANON INC.
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CANOSCAN D660U REV.0 JULY 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)