Canon CanoScan D646U User Manual page 80

chapter 7
Troubleshooting
Top Page
Glossary
Contents
Index
The colors differ between the Preview and the Print
Problem: When printing the image, its color differ from the one in
the Preview area.
Cause1: The toner of the printer is going short.
Solution: Confirm the toner of the printer.
Cause2: Canon ColorGear Color Matching may have not been
selected when it was necessary.
Solution: Check that Canon ColorGear Color Matching is selected
on the Preferences sheet.
Cause3: The settings of the printer driver, such as color balance or
Gamma, do not match to the printer.
Solution1: Adjust the color balance in the printer driver manually.
Solution2: Change the Gamma value setting of the printer driver.
The software application cannot find the scanner.
Problem: When trying to scan, an error message says the scanner
cannot be found.
Cause: Windows may not recognize your scanner.
Solution: Make sure the scanner is connected to your computer
before you turned on the computer and started Windows.
If not, connect the scanner. Then restart your computer. If
this does not correct the problem, consult the scanner user
manual for additional information about how to properly
set up your scanner.
Some buttons are grayed-out.
Problem: Buttons in the Toolbar are grayed-out and not available.
Cause: Some functions are not available until an image has been
previewed.
Solution: Preview an image.
80