Panasonic KX-P8420 User Manual

From Ready or Ready(Sleep), press the Menu button 
and then press the Continue/Forward button 
repeatedly to advance to the Visual Calibration menu. 
Press the Enter button.

When the screen displays Endpoint Page on the first 
line and Print on the second line, press the Enter 
button.

Wait for the VisualCal Limits and 30% Match page to be printed.

For the Black Low menu and Black High menu, press 
the Enter button each. For the subsequent menus: 
Cyan, Magenta, Yellow, 30% Match, press the Enter 
button.

The Gray Balance Page menu appears.

Use the Cancel/Left button or the Continue/Forward 
button to select Skip menu, and press the Enter button.

The Color Test menu appears.

Use the Cancel/Left button or the Continue/Forward 
button to select Skip menu, and press Enter button.

The Apply Changes menu appears.

Use the Cancel/Left button or the Continue/Forward 
button to select Default menu, and press Enter button.

The Ready menu appears.