Xerox Phaser EX7750 Leaflet

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 EX7750. These 
elements are not affected by the Pure Black Text/Graphics option. For details, see the 

. Also, black text and line art defined as RGB = 0, 0, 0 in office 

applications (such as Microsoft Word) are converted to single-color black (CMYK = 
0%, 0%, 0%, 100%) by the Microsoft PostScript Level 3 driver for Windows 
2000/XP. To print this single-color black at the maximum toner density of the printer, 
set the Pure Black Text/Graphics option to On. 

This feature is not available with the PCL driver.

The Black Overprint option allows you to specify whether or not black text or 
text/graphics, defined as RGB = 0, 0, 0, or as CMYK = 0%, 0%, 0%, 100%, 
overprints colored backgrounds.

•

—Black text overprints colored backgrounds, eliminating white gaps and 

reducing halo effects or misregistration of colors.

•

—Black text and graphics overprint colored backgrounds, 

eliminating white gaps and reducing halo effects or misregistration of colors.

•

—Black text or text/graphics knocks out colored backgrounds.

PostScript applications may perform their own black overprint conversions 

before sending the print job to the EX7750.