![background image](http://html.mh-extra.com/html/canon/canoscan-n1220u/canoscan-n1220u_service-manual_62826027.webp)
CHAPTER 2
2 - 7
COPYRIGHT
2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
2. Calibration sequence
Figure 2-6-1
Standby
Black level was
corrected normally?
NO
YES
Sets error flag
Sets black calibration
data to gate array
NO
YES
Sets error flag
2
Corrects black level
Data was
obtained normally?
NO
YES
Sets error flag
Obtains 32 lines of data
Composes black
calibration data
Black calibration data was
set to gate array normally?