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
CHECK 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