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With PostScript applications, you can work with colors created with any of the color models 
supported by the application. All PostScript applications support CMYK. Some also support 
RGB and other color models based on monitor display values. PostScript applications also 
allow you to choose named colors using one or more color libraries, such as PANTONE (see 

).

Your Color Server user software includes several color reference pages (see 

). By 

choosing colors from these reference pages, you ensure that you print the same color from 
your device. For best results, calibrate the Color Server before printing the reference pages. 

We highly recommend that you use swatch color matching to ensure predictable color 

printing results with the Color Server or match your Color Server output to colors produced 
by other printers. 

Swatch color matching does not match monitor colors to printed colors. For this, you 

must use a color management system and calibrate your monitor.

Use the CMYK Color Reference included with your Color Server user software to see how 
various cyan, magenta, yellow, and black combinations look when printed on your printer.

To print the CMYK Color Reference, download the file to the Color Server. The printed 
pages display groups of color patches in graduated combinations of yellow, magenta, and 
cyan, and smaller patches that include 25%, 50%, and 75% black. Refer to these pages to 
pick colors and specify process color values in your application. For the location of the file on 
the User Software CD, see 

Use this reference (Process Simulation of PANTONE Solid Coated Colors) included with 
your Color Server user software to help ensure predictable results with colors chosen from the 
PANTONE color library. 

The information printed by this reference depends on the Spot Color Matching setting. 

 prints swatches that simulate the spot color with the closest equivalent 

available using the CMYK toners of the copier/printer connected to the Color Server. The 
equivalent PANTONE color name/number is printed below each swatch.

 prints swatches of the CMYK equivalents of PANTONE colors as 

defined by PANTONE. (These are the same CMYK values defined in applications that 
include PANTONE libraries.) The CMYK values used to produce the color, as well as 
the PANTONE color name/number, are printed below each swatch.

To print the reference, download the file to the Color Server. For the location of the file on 
the User Software CD, see 

 or 

. If the default Spot 

Color Matching setting on the Color Server is not the setting you want to use for printing the 
PANTONE colors, download the file to the Hold queue, and then override the Spot Color 
Matching setting using a job management utility, such as Command WorkStation. 

For more information about using Command WorkStation, see the Command WorkStation 
Help.

The methods and options available for defining colors depend on the type of PostScript 
application that you are using.

Photoshop

Choose colors in Photoshop with various color models, including 
HSB, CIE Lab, RGB, and CMYK. 

Page layout 
application

Page layout applications generally use the CMYK color model. Some 
allow you to define colors with other color models and may be able 
to send that data to the Color Server in those other color models. 
Generally, however, CRDs

(which affect only RGB data) do not 

affect colors defined in page layout applications. 

For predictable results with CMYK colors, use the CMYK Color 
Reference when defining colors in page layout applications (see 

Illustration 
application

All illustration applications use the CMYK color model. Although 
you may be allowed to define colors using other color models, these 
applications generally send only CMYK data to the Color Server. 

For predictable results with CMYK colors, use the CMYK Color 
Reference pages when defining colors (see 

Different versions of Illustrator support color models slightly 
differently (see 

Photoshop

Choose colors in Photoshop with various color models, including 
HSB, CIE Lab, RGB, and CMYK. 

Page layout 
application

If the application allows you to define colors in RGB, determine 
whether it converts the RGB data to CMYK before sending it to the 
Color Server. If it does, this will determine which ColorWise print 
options affect your job. 

For example, if the application converts RGB black (defined in the 
document as R0%, G0%, B0%) to four-color CMYK black when it 
sends the job to the Color Server, the option you select for the Pure 
Black Text/Graphics print option has no effect when you print the 
job.

Illustration 
application

If you define colors in RGB and print directly from the application, 
the application converts the RGB data to CMYK before sending it 
to the Color Server. This conversion by the application determines 
which ColorWise print options affect your job. 

For example, if the application converts RGB black (defined in the 
document as R0%, G0%, B0%) to four-color CMYK black when it 
sends the job to the Color Server, the option you select for the Pure 
Black Text/Graphics print option has no effect when you print the 
job.

Photoshop

Choose 

 from the PANTONE color library (see 

 on page 26). For best results, use 

the color definition methods described in 

Page layout 
application

Illustration 
application