Xerox DocuColor 12 Printer with Fiery X12 产品宣传页

The Pure Black Text/Graphics option affects the printout for black text and vector 
graphics on a page. Under most circumstances it is preferable to leave this option set to 
the On position. When Pure Black Text/Graphics is on, black colors generated by 
applications are printed using 100 percent black-only toner (for example, 
RGB = 0, 0, 0; CMYK = 0%, 0%, 0%, 100%; or K = 100%). This means the black 
text and line art will not exhibit halftone artifacts and will not be misregistered, since 
there is only one toner used. In addition, this setting eliminates blasting. This option 
is automatically set to On when the Black Overprint option is set to On.

For some jobs it is preferable to turn this option Off, for example, if the page includes 
gradient fills that use black. The table below describes the behavior of the Pure Black 
Text/Graphics option with black data defined in different color spaces.

The Pure Black Text/Graphics option can be used only when printing 

composites, not when printing separations. 

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 Fiery. These 
elements are not affected by the Pure Black Text/Graphics option. See the application 
notes for details. Also, black text and line art defined as RGB = 0, 0, 0 in office 

Prints 100% black

With the default profile, prints a rich black 
using all toners.

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.

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.