Canon PIXMA MG4200 Series On-Screen Manual page 664

Monitor Gamma
By setting the gamma value of a monitor, you can adjust the input data to the brightness characteristics
of the monitor. Adjust the value if your monitor's gamma value does not match the default value set in
ScanGear, and the colors of the original image are not accurately reflected in the monitor.
Click Defaults to return to the default Monitor Gamma value (1.80).
Note
Refer to the manual of your monitor to check its gamma value. If it is not written in the manual,
contact the manufacturer.
Page top