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CHAPTER 2
2 - 13
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Figure 2-8-2
5
Standby
NO
YES
LED exposure
control is required?
Detects border between
black and white
Moves scanning unit
forward 2 mm
<LED exposure control>
Time required
about 15 seconds
Sets exposure control mode
R LED ON
Sets LED ON period
Detects peak value
to the CIS
Increases LED ON
period data
NO
NO
YES
LED ON
period is longer than
max. value?
YES
Peak light intensity
to the CIS is higher than
the preset value?
Sets max. LED ON period
<Peak value detection>
*A
Содержание CanoScan FB 630P
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