Grey shading on LaserJet 4

[Michael Sweet]

David Sumbler wrote:
> I run Fedora Core 4, using Cups v.1.1.23.  I have two printers, one of which is an HP LaserJet 4 with postscript.
> 
> When I print a greyscale image using the Cups driver, I get a sort of "solarized" effect, with the greys stepped rather than having smooth transitions.  I even get fractal-type patterns in some places.  The same images print fine on my HP PSC 2210, also using Cups.
> 
> Is it possible to get a decent result with the HP4?

The on-board PostScript included with the HP LaserJet 4 uses a
standard round dot halftone pattern; printing at 600dpi will make
the pattern less visible, but if you want better shading you'll need
to switch to a PCL driver like the one included with Gutenprint (aka
Gimp-Print).

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______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Publishing Software        http://www.easysw.com