Xerox Phaser EX7750 Reference Guide

Colors can be defined in several different color models, the most common being RGB, 
CMYK, and the spot color matching system (such as PANTONE). Depending on the 
application you use, you may or may not have a choice of the color model. 

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 colors are used when you take output from an RGB device such as a digital 

camera or a scanner. Another use of the RGB color model is for displaying colors on 
a monitor.

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 colors are what most printers use.

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, such as PANTONE, are special inks manufactured to run on an offset 

printing press. Spot colors can be simulated using CMYK toners (also known as 

 inks). With the Spot Color Matching print option, you can determine 

how spot colors are printed at the Color Server:

 uses color tables built in the Color Server to simulate the 

spot color with the closest equivalent available using the CMYK toners of the copier/
printer connected to the Color Server. 

 instructs the Color Server to simulate the spot color using 

CMYK equivalents defined by the spot color manufacturer. These are the same 
CMYK values used by applications that include spot color libraries. This CMYK 
combination is then printed with the CMYK Simulation setting you choose, such as 

The color model used by your application determines the methods available for 
choosing colors, as well as the way color data is transmitted to the Color Server:

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, such as presentation software, spreadsheets, and word processing 

programs, use the RGB color model. They typically transmit only RGB data to the 
Color Server.

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 use both the RGB and CMYK color models, but typically 

transmit only CMYK data to the Color Server.

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 use both the RGB and CMYK color models. 

They can transmit either RGB or CMYK data to the Color Server.