Xerox DocuColor 12 Printer with Fiery EX12 产品宣传页

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Basics of color management
 
Color conversion
 
Before you can print a color document, the color data in it must be converted to the 
gamut of the printer. Whether performed by the Color Server or a host-based CMS, 
the process of converting color data for a printer is the same: the CMS interprets RGB 
image data according to a specified 
 
source profile
 
 and adjusts both RGB and CMYK 
data according to a specified 
 
output profile
 
, also called a destination profile by some 
color management systems.
The 
 
 
 defines the RGB color space of the image’s source—characteristics 
such as the white point, gamma, and type of phosphors used. The output profile 
defines the gamut of an output device, such as a printer. The Color Server (or the 
host-based CMS) uses a device-independent color space to translate between the 
source color space and the color space of the output device.
The Color Server allows you to specify default and override settings for the source 
color space information and the output profile information (see the 
 
Color Guide
 
). 
When you use these settings, you do not need to use the features of other color 
management systems. Your Color Server software includes ICC profiles for use with 
other color management systems, if you choose to use them, although conflicts may 
arise when the Color Server CMS is used in conjunction with a host CMS.
You can also use color management systems to adjust color data to the gamut of an 
output device other than the one to which you are printing. This process of simulating 
another output device is commonly used for proofing jobs that will print on an offset 
press. The Color Server simulation feature is described in the 
 
Color Guide
 
.
Input data
Printed data or file
Color management system
Device-independent 
color space
Source 
profile
Output 
profile