Canon BJC-55 User Manual page 388

I Other IS Scan Features
White Level Calibration
Use this feature to maintain the correct color balance of scanned images. You need to
perform White Level Calibration when you use the scanner cartridge for the first time and
when the white level calibration data needs to be updated.
1
Select White Level from the Option menu of the main IS Scan dialog box.
2
When a message appears, insert the white calibration sheet into the auto
sheet feeder of the printer.
3
Click the OK button.
4
When the white calibration sheet is ejected from the paper output tray, the
White Level Calibration process is complete.
Using the White Calibration Sheet
Using the Optional IS-12 Color Image Scanner Cartridge
Using the Scanner With Windows
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