Oki C9800hdn, Руководство по цветам, Страница: 25 / 100

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1-25 Managing color on the Fiery
C9800 Color Guide - 25
RGB Separation
The RGB Separation option determines how RGB colors (as well as Lab and XYZ
colors) are converted to CMYK. The name of this option is meant to be descriptive,
since the option defines the color spaces that will be used by the Fiery to “separate” the
RGB data into CMYK values.
The two choices available for this option determine whether RGB data is converted
into the full gamut of the printer (see output profile) or is first converted into the
gamut of another digital printer or press standard (simulation). This feature is helpful
for making one device behave like another for RGB data. For example, if a high-quality
ICC profile is available for another print device, the Fiery can simulate the behavior of
that device.
RGB Separation is also useful for prepress applications. For example, it allows you to
experiment with the appearance of an RGB scan under different press printing
conditions, without having to convert the RGB data to CMYK data for each
condition. When the desired printing condition is found, convert the file to CMYK,
using the same CMYK simulation profile you used during the experimentation.
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The RGB Separation print option should be used in conjunction with the
Output Profile or CMYK Simulation Profile print options.
•
Output
converts all RGB colors into the CMYK color space of your printer (when set
to the printer’s default), or a customized CMYK color space for your printer (when
set to Output 1-10).
•
Simulation
converts all RGB colors into the CMYK color space for a specified
simulation (select the desired simulation with the CMYK Simulation Profile print
option).