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COLORWISE PRINT OPTIONS 101
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, because the option
defines the color spaces that are used by the EX8002 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 digital press (output) or is first converted into the gamut of another digital
printer or press standard (simulation). This feature helps make one device behave like another
for RGB data. For example, if a high-quality ICC profile is available for another print device,
the digital press 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 that you used during the experimentation.
NOTE: Use the RGB Separation print option in conjunction with the Output Profile or
CMYK Simulation Profile print options.
•
Output converts all RGB colors into the CMYK color space of your digital press (when
set to the printer’s default), or a customized CMYK color space for your digital press
(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).
RGB Source Profile
The RGB source profile setting allows you to define the characteristics of the RGB data in
your document so that the appropriate color conversion occurs on the EX8002. Commonly
used monitor color spaces are available from the printer driver and the EX8002. For others,
use ColorWise Pro Tools Profile Manager to download custom monitor or scanner profiles.
When you specify a setting other than None for the RGB Source Profile, the EX8002
overrides source color space definitions or profiles that other color management systems may
have specified. For example, if your document contains an embedded RGB profile, the RGB
Source Profile setting overrides it. In cases where you do not want this setting to override
another specified source color space, choose None.