Xerox 8000AP 补充手册

The Black Text/Graphics option affects black text and 

. Under most 

circumstances, set this option to Pure Black On. When Black Text/Graphics is set to Pure 
Black On, black colors generated by applications (for example, RGB=0, 0, 0 or CMYK=0%, 
0%, 0%, 100%) are printed using black toner only. The black text and line art do not exhibit 
halftone 

 (as long as the digital press is calibrated correctly) and are not misregistered, 

since one toner is used. In addition, this setting eliminates 

. This option must be set 

to Pure Black On if you want to set the Black Overprint option to Text or Text/Graphics.

For some jobs, it is preferable to clear this option, for example, if the page includes 

fills that use black. The following table describes the behavior of the Black Text/Graphics 
option with black data defined in different color spaces.

Use the Black Text/Graphics option only when printing composites, not when printing 

separations.

RGB=0,0,0

(all other RGB values are 
unaffected by the Black Text/
Graphics setting)

RGB=0,0,0 is printed according to the definition 
for RGB=0,0,0 in the output profile. This may 
be a rich black using all toners if the output 
profile specifies a rich black, or may be K-only 
if the output profile specifies K-only for 
RGB=0,0,0. The output is affected by the 
calibration curve.

RGB=0,0,0 is printed as K-only, using the black 
toner (Pure Black On) or 100% K plus 50% 
Cyan (Rich Black On) using black and cyan 
toners. All other RGB values are unaffected by 
the Black Text/Graphics setting.

CMYK=0%,0%,0%,100%

(all other CMYK values are 
unaffected by the Black Text/
Graphics setting)

CMYK=0%,0%,0%,100% may be printed as 
K-only or as a rich black using all toners, 
depending on the CMYK Simulation Profile 
and CMYK Simulation Method settings. 

For Quick and Full (Source GCR), 
CMYK=0%,0%,0%,100% prints as K-only 
and the amount of black toner is limited by 
the simulation profile and the calibration curve.

For Full (Output GCR), 
CMYK=0%,0%,0%,100% prints as K-only 
and the amount of black toner is limited by 
the simulation profile and the calibration curve.

Setting CMYK Simulation to ColorWise Off 
disables the simulation profile and the 
calibration curve. In this case, the black toner 
is not limited by the calibration curve.

CMYK=0%,0%,0%,100% is printed as K-only, 
using the black toner (Pure Black On) or 100% 
K plus 50% Cyan (Rich Black On) using black 
and cyan toners, regardless of the CMYK 
Simulation Profile and CMYK Simulation 
Method settings. All other CMYK values are 
unaffected by the Black Text/Graphics setting.

Setting CMYK Simulation to ColorWise Off 
disables the simulation profile and the 
calibration curve. In this case, the black toner 
is not limited by the calibration curve.

Spot Colors

(unaffected by the Black Text/
Graphics setting)

Standard spot color processing

Standard spot color processing