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1-8 GA-1121 Color Management
NOTE: The rendering styles associated with the PCL driver do not match those
associated with the PostScript driver.
Pure Black Text/Graphics
The Pure Black Text/Graphics option affects the printout for black text and vector
graphics on a page. Under most circumstances, leave this option set to On. When Pure
Black Text/Graphics is on, black colors generated by applications (for example, RGB =
0, 0, 0; CMYK = 0%, 0%, 0%, 100%; or K = 100%) are printed using the maximum
amount of black toner allowed by the calibration curve. This means the black text and
line art will not exhibit halftone artifacts (as long as the copier/printer is calibrated
correctly) and will not be misregistered, since there is only one toner used. In addition,
this setting eliminates blasting.
For some jobs, it is preferable to clear this option, for example, if the page includes
gradient fills that use black. The following table describes the behavior of the Pure
Black Text/Graphics option with black data defined in different color spaces.
NOTE: Use the Pure Black Text/Graphics option only when printing composites, not
when printing separations.
NOTE: PostScript applications (such as QuarkXPress) may convert elements defined as
RGB = 0, 0, 0 to four-color CMYK black before sending the job to the GA-1121.
These elements are not affected by the Pure Black Text/Graphics option. For details,
Input
black color
Pure Black Text/Graphics
On Off
RGB
Prints 100% black With the default profile, prints a rich black using
all toners.
CMYK
Prints only with black toner, because CMYK
simulations preserve the black channel. The actual
amount of toner used depends on the current
simulation and the calibration state of the
copier/printer.
Spot
Prints only with black toner, because spot color
simulations preserve the black channel. The actual
amount of toner used depends on the current
simulation and the calibration state of the
copier/printer.