MX-PEX1 (serv.man12). Fiery PEX1 Colour Reference Guide - Sharp Copying Equipment User Guide / Operation Manual. Page 18

You can use the Color Server for on-demand color printing and for color proofing. 
On-demand color printing refers to those jobs for which the Color Server is the final print 
device. Printing jobs to the Color Server in preparation for printing on an offset press is 
referred to as color proofing. Both types of Color Server print jobs can use RGB, CMYK, and 
spot colors.

The term “on-demand” applies to producing printed output when it is needed. You 

may be familiar with the term “short-run”, which usually applies to the volume of a printing 
task. Although these terms do not mean exactly the same thing, “on-demand” in this manual 
applies also to short-run printing scenarios. Because you can print as many pages as you need 
and can reprint jobs quickly, the Color Server performs equally well in either environment.

The type of printing you plan for the document, on-demand color printing on the 
Color Server versus color proofing for eventual printing on an offset press, determines the way 
you define colors, as well as the print option settings you choose.

• For on-demand color printing on the Color Server, use any application and define colors 

in either RGB or CMYK. If your application supports it, you can also choose colors from 
the PANTONE color library. Choose the appropriate settings for print options affecting 
color output (for descriptions of the print options, see 

• For color proofing, use a PostScript-defined color in CMYK or choose colors from color 

libraries, such as the PANTONE color library. Placed images can also be defined in RGB 
or CMYK. Choose the appropriate settings for print options affecting color output (see 

).

The Color Server allows you to use RGB or CMYK data when printing proofs for 

an offset press run. However, sending data to an 

 usually requires CMYK data.

Bright, saturated colors are often desirable. 

Require the printed colors to match 
those from another set of CMYK 
printing conditions. 

Colors are achieved using the full range 
of colors available, referred to as the full 

 of the printer or, more simply, device 

CMYK. 

Colors that are specified for an offset press 
require CMYK simulation that is optimized 
for proofing on the printer.