85chapter 7TroubleshootingTop PageGlossaryContentsIndexThe colors differ between the Preview and the PrintProblem: When printing the image, its color differ from the one inthe 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 beenselected when it was necessary.Solution: Check that Canon ColorGear Color Matching is selectedon the Preferences sheet.Cause3: The settings of the printer driver, such as color balance orGamma, 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 scannercannot be found.Cause: Windows may not recognize your scanner.Solution: Make sure the scanner is connected to your computerbefore you turned on the computer and started Windows.If not, connect the scanner. Then restart your computer. Ifthis does not correct the problem, consult the scanner usermanual for additional information about how to properlyset 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 beenpreviewed.Solution: Preview an image.