Xerox DocuColor 12 Printer with Fiery X12 产品宣传页

Before a color document can be printed, the color data in it must be converted to the 
gamut of the print device. Whether performed by the Fiery or by a host-based CMS, 
the process of converting color data for a print device 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 source profile 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 the output device. The Fiery (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 Fiery allows you to specify default and override settings for the source color space 
information and the output profile information (see page 1-1). When you use these 
settings, you do not need to use the features of other color management systems. Your 
Fiery software includes ICC profiles for use with other color management systems, if 
you choose to use them, although conflicts may arise when the Fiery CMS is used in 
conjunction with a host CMS.

Color management systems can also be used to adjust color data to the gamut of a 
print device other than the one to which you are printing. This process of simulating 
another print device is commonly used for proofing jobs that will print on an offset 
press. The Fiery simulation feature is described on page 1-8.