Panasonic KX-P8410 Operating Instructions Manual page 56

Setup
56
2
Compare the current color density settings on the Color
Calibration Page with the color density samples on the Color
Calibration Card to see if they match.
Place the Color Calibration Page on at least 2 sheets of clean white paper in a
well-lighted area.
Color Calibration
Card
BIf they match, then you do not need to adjust the color density
and you may proceed with any operation you wish to perform.
BIf they do not match, go to step 3.
3
Determine which block on the Color Calibration Page most
closely matches the density of the cyan sample on the Color
Calibration Card.
BRepeat step 3 for each color.
Color Calibration
Page