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339Scanner Problems
Scanning Result Is Unsatisfactory
■ White Portion Becomes Grayish
CHECK 1 DID YOU PERFORM WHITE LEVEL CALIBRATION?
Use White Level Calibration to maintain the correct color balance of
scanned images.
Using the White Calibration Sheet
C
HECK 2 DID YOU ADJUST THE BRIGHTNESS AND CONTRAST?
Depending on the image you scan, a white portion is not recognized as
white because the scanner detects and scans even the small differences
of the density between white and other colors.
Adjust the brightness and contrast.
• When you are using IS Scan Plus, use the online Help.
• When you are using a TWAIN-compatible graphics application program,
see the User’s Manual for the application program.
Note