QMS 2425, Reference

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Sets the Default Font Index when the Administration/Emulation/PCL
5E/Default Font menu is set to Select By Index.
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Allows your printer to emulate a monochrome or color plotter.
Menu Administration/Emulations/PCL E/Default Font Idx
Choices
0 to 32767
Default 00000
Note
The index number can be obtained by the listing printed
on the advanced status page. See “Printing a Status
Page” on page 4-70 for status page details.
Menu
Administration/Emulations/PCL 5E/Monochrome GL/2
Choices On, Off
On—Sets the printer to monochrome (2 pen).
Off—Sets the printer to color (8 pen).
» Note: Since a monochrome print system has two
pen colors only (black and white), grayscale
patterns are substituted for other colors.
The printer maps each pen to its assigned color, then
converts the color to a grayscale using the National
Television System Committee (NTSC) color standard
for luminosity coefficients (Additive System):
Y = .3R + .59G + .11B
Examples on How to Use the Color Standard Formula
White Y = [(1*0.3) + (1*0.59) + (1*0.11)]—100% gray
Black Y = [(0*0.3) + (0*0.59) + (0*0.11)]—0% gray
Red Y = [(1*0.3) + (0*0.59) + (0*0.11)]—30% gray
Green Y = [(0*0.3) + (1*0.59) + (0*0.11)]—59% gray
Yellow Y = [(1*0.3) + (1*0.59) + (0*0.11)]—89% gray
Blue Y = [(0*0.3) + (0*0.59) + (1*0.11)]—11% gray
Magenta Y = [(1*0.3) + (0*0.59) + (1*0.11)]—41% gray
Cyan Y = [(0*0.3) + (1*0.59) + (1*0.11)]—70% gray