Xerox 8000AP 补充手册

With PostScript 3, a PostScript job can include calibrated CMYK (or 

CIEBasedDEFG) data. The Rendering Style print option, which normally affects only RGB 
data, affects calibrated CMYK data as well. The RGB Source Profile setting does not affect 
calibrated CMYK data.

The following sections provide detailed explanations of the ColorWise print options and how 
these options affect print jobs.

For information about the following print options, see 

• Halftone Screen

• Paper Simulation

• Substitute Colors

• 2-Color Print Mapping

Trapping is a technique where the size of objects is modified so that colors printed next to 
each other overlap slightly, to prevent white spaces between two colors. These white spaces, or 
“halos,” can be caused by factors such as misregistration, the physical properties of the toners, 
and the stiffness of the media. The following illustration shows the same image with and 
without trapping.

If you enable the Auto Trapping option, trapping is applied to all the objects in a job.

The Fiery EX8000AP is shipped with trapping values that are optimized for a Fiery-driven 
print device using regular paper. If these values do not provide the results necessary for the 
media that you use, and if Graphic Arts Package, Premium Edition is configured on the Fiery 
EX8000AP, you can modify the values to meet your requirements. For more information, see