Choosing the Best Halftone Setting
The Xerox Nuvera version of the system supports a variety of halftones when printing. The available selections depend on the Page Description Language (PDL) being submitted.
To select a Halftone
- Open a job properties window.
- Select the Image Quality tab.
- Select the Halftone button and the screen value from the Halftone pull down menu.
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NOTE: For print jobs, the Copier / Printer configuration always uses the default 125 lpi 53 degree halftone screen. |
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NOTE: For print jobs, the Digital Production System and 288 Perfecting System configurations at 1200 x 1200 dpi use the default 125 lpi 53 degree halftone screen representing 256 levels of gray. |
The default halftone screen can be selected for each print queue. The default will be used if a PostScript, PDF, or TIFF job does not contain a halftone command. This will be the common case because the print drivers and job submission tool do not send a halftone command by default.
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NOTE: When reprinting a saved job, the system does NOT permit the Halftone Screen value to be changed, since saved jobs will already have had a halftone applied. |
Often the selection of a different frequency will change the resulting Moiré texture to one which is more acceptable, but can not totally eliminate Moiré. For more information, see Removing Moiré Patterns.
Xerox Nuvera® Digital Production System and Xerox Nuvera® 288 Digital Perfecting System Screen Frequency Demo
The rich variety of screen frequencies for these systems include 85, 106, 125, 134 and 156 lpi and provide the flexibility required for a wide variety of applications.
The demo files are located in the default save directory on the system. Open and print the .tiff or .xpf file in the appropriate stock size. The job ticket contains all the necessary job settings. The job prints on letter or A4 stock.
The file names are:
screenfregdemo_a4.tif
screenfregdemo_a4.xpf
screenfregdemo_ltr.tif
screenfregdemo_ltr.xpf
