Canon CANOSCAN FB330 series Service Manual page 42

CHAPTER 2
<Exposure control data fine adjustment>
2 - 14
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
5
Stores R LED ON period data
Obtains 1 line of white data
Max. value in 1 line of data
is within proper range?
YES
Stores R LED ON period data
*B
Changes LED to G and
performs from *A to *B.
Stores G LED ON period data
Changes LED to B and
performs from *A to *B.
Stores B LED ON period data
LED OFF
Moves scanning unit
to the home position
Standby
Figure 2-8-3
Adjusts LED ON period data
NO