Xerox DocuColor 12 Printer with Fiery EX12 产品宣传页

 

Colors can be defined in several different color models, the most common being 

 

 

 

 matching system. Each model requires a different 

color conversion at the Color Server. These different color conversion workflows 
are as follows:

• RGB source profiles and 

 

 (CRDs) are used to map 

RGB colors through a device-independent color space to a destination space, either 
the full device gamut in a short-run printing workflow or CMYK simulation in a 
color proofing workflow.

• CMYK colors are device-dependent. In a proofing scenario, colors specified in 

prepress applications are adjusted so that the gamut of the printer simulates that 
of the press. In a short-run printing workflow, specifying CMYK colors according 
to the calibrated Color Server output eliminates the need for simulation 
during printing.

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

printing press. Spot colors can be simulated using CMYK toners or process color 
inks. Two basic workflows exist for printing spot colors to the Color Server:

 

 uses color tables built in the Color Server to simulate the 

spot color with its closest CMYK equivalent. 

 

 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 
SWOP or DIC.

 

A desktop color management system uses ICC profiles to convert colors from one 
device gamut to another (see 

). The color data is converted when it is 

passed from one application to another or when the job is sent to the printer; thus, the 
processing occurs on

 

your computer, as opposed to the Color Server.