HP L 5 manual Color Selection, Scenario White Reference Black Reference

Example:

Assuming the white and black references are set as follows:

Scenario 1

White Reference	Black Reference
red = 63	red = 0
green = 63	green = 0
blue = 63	blue = 0
Scenario 2
White Reference	Black Reference
red = 63	red = 4
green = 127	green = 0
blue = 31	blue = 0

Using these reference values, 50% blue for scenario 1 is 31, and 50% blue for scenario 2 is 15.

Color Selection

The HP color printers offer two methods for selecting colors:

•Indexed selection

•Direct selection

In indexed selection, colors are chosen using their palette index numbers. For non-raster mode, the palette index number is specified using the Foreground Color command. In raster mode, the data bit combination for each pixel forms an index number. The example below shows how the index numbers for an 8-color palette are specified:

Three-bit combinations:	0 1 0 1 0 1 0 1
	0 0 1 1 0 0 1 1
	0 0 0 0 1 1 1 1
Palette index number:	0 1 2 3 4 5 6 7

EN Color Printing Overview (Color LaserJet, 5, 5M, DeskJet) A-5