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1-3 Managing color on the GA-1121
You can specify settings for the following options by selecting print options when you
send a job to the GA-1121. Some can also be set as defaults by the administrator dur-
ing GA-1121 Setup or using ColorWise Pro Tools. Settings specified using print
options override the defaults. Some options can be used as what was purchased sepa-
rately.
GA-1121 color print option What it does
Black Detection
On/Off
If your job consists of black-only text pages combined with a significant
number of color pages, set this option to Off.
Black Overprint
Off/Text/Text & Graphics
(Default set at Setup or with ColorWise Pro
Tools)
Specifies whether to overprint black text or black text and graphics placed on
colored backgrounds. Overprinting colored backgrounds eliminates white gaps
and reduces halo effects or misregistration of colors (see page 1-9). This option
is only available with the PostScript driver.
Brightness (PS only)
85% Lightest to 115% Darkest
Performs a color adjustment on all color channels to make the printed
output lighter or darker.
CMYK Simulation Method
Quick/Full (Source GCR)/Full (Output
GCR)
(Default set at Setup or with ColorWise Pro
Tools)
Quick simulation applies one-dimensional transfer curves that adjust output
density only. The Full simulations apply colorimetric transformations that
adjust hue as well as output density (see page 1-13). This option is only
available with the PostScript driver.
CMYK Simulation Profile
SWOP-Coated (EFI)/DIC (EFI)/
Euroscale (EFI)/Match Copy/None
(Default set at Setup or in ColorWise Pro
Tools)
Adjusts CMYK color data to simulate an offset press standard or a custom
color
gamut defined at your site. The Match Copy setting bypasses GA-1121
calibration to match a copy made from the copier glass. Choosing None
bypasses simulation (see page 1-12). This option is only available with the
PostScript driver.
Color Mode (Mac OS)
CMYK/Grayscale
or
Print Mode (Windows, PS driver)
Standard Color/Expert Color/Grayscale
or
Print Mode (Windows, PCL driver)
CMYK/Grayscale
Specifies the output color space of the job. Select CMYK, Standard Color, or
Expert Color for a full-color document.
Combine Separations
On/Off
Specifies whether to print separated CMYK data as a single, four-color
composite document (see page 1-15).