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Issues with PosctScript printing on an HP Color LaserJet CP5525

We're having issues with a brand new HP Color LaserJet CP5525 printer when attemtping to print true PostScript files.  We have no controller over the frequency and it will not take the printing arguments for dot size or angle.  Has anyone else hit and resolved this issue?  Any advice?
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anotherhick
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anotherhick
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hdhondtCommented:
Most colour desktop printers do not let you change screen frequency or angle. The main reason is that, with the low resolution used on lasers (600 dpi, compared to 2400 dpi on offset printers) the printing results will be dreadful with standard PostScript halftoning. Instead, they use more advanced halftoning that gives better results.

Do not believe colour laser specs that mention any resolution above 1200 dpi: it's not real. And only very few give 1200 dpi at all.

With some printers you can turn off internal halftoning settings, via a PostScript snippet, or possibly from the front panel. But they tend to be the upmarket machines. Xerox have a SetScreen utility that works on some of their printers. You can try it on yours; it's downloadable from:

http://www.support.xerox.com/support/phaser-8400/file-redirect/enus.html?operatingSystem=winxp&fileLanguage=en&contentId=49175
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hdhondtCommented:
BTW, setscreen is a self-expanding zip file. When you run it it creates 3 files. The important ones are SCREENON.PS and SCREENOFF.PS. These unlock and lock the printer's internal halftoning. These files need to be sent to the printer before the print job, using either COPY or LPR, depending on the printer's connection.
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hdhondtCommented:
Thanks for the points.

Just a question for my benefit: did the Xerox utilities work on your printer?
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