Xerox P8EX Spire CXP8000 Color Server - User Guide - Page 343

Default Color Flow 329 5. Click Submit to send your job to print. The job is processed on the Spire CXP8000 color server and sent to the Xerox DocuColor 8000 Digital Color Press for printing. Note: You can also use a virtual printer to adjust job parameters. For more information about submitting jobs to the Spire CXP8000 color server, see Importing and Printing Jobs on page 154. Color Workflow Terminology This section defines the terms used in the RGB and CMYK workflow. • CSA (Color Space Array) is the spectrum of specific variants of a color model with a specific gamut or color range. For example, within the color model RGB, there are numerous color spaces, such as Apple RGB, sRGB, and Adobe RGB. While each of these define color by the same three axes (R, G, and B), they differ in gamut and other specifications. CSA is comprised of a three-dimensional geometric representation of colors that can be seen or generated using a certain color model and are quantitatively measured. Source CSA is to be used only under the assumption that the upstream color workflow was managed and monitored. Otherwise it should be replaced with a Creo profile, which is the default. • CSA Profiles: There are three CSA profiles with gammas of 1.8, 2.1 and 2.4. The higher the gamma, the darker the RGB appears. This workflow should be used when you have images from different sources, such as digital cameras, Internet, and scanners and you want the images to have the common RGB color spaces. Other possible CSA profiles are sRGB and Adobe RGB. • Rendering Intent: All printers, monitors and scanners have a gamut or range of colors that they can output (or view in the case of a scanner). If a color needs to be output and is outside the gamut of the output device, it must be mapped or approximated to some other color, which exists within the gamut. Rendering Intent enables you to compress out-of-gamut colors into the color capability of the press you are using. You can set any rendering intent value for RGB elements by selecting the required from the Rendering intent options list. The default value for RGB is Perceptual (photographic). The default value for CMYK is Relative Colorimetric.