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[Sheflug] On grey backgrounds...

Hello,
    Just realised that my colour printing is taking forever! This is
simply printing a few graphs on to a HP Deskjet 890C. The graphs are
standard gnuplot jobs, exported as PS, and then put together in a
LaTeX document. The B&W stuff is printed without problems, but
printing the colour version produces a print-out in which you can see
a very light grey square (which corresponds to the printing ares).

+---------------------------------------------+
1                                             |
| ******************************************* |
! ******************************************* |
| ******************************************* |
| ****@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@***** |
+---------------------------------------------±

    where the * are the light grey background and the  [at]  are the stuff
which needs to be printed. 

    I guess the problem lies within CUPS+GIMPprint. There must be some
setting which is not quite right. The file which I am printing is a PS
file, so I understand that this is printed as a series of images. Does
anyone know what parameter might be playing a role here? Saturation,
birghtness, contrast...? The ones being used at the moment are
-All the numeric values are 1.00
-Dither is set to Adaptive Hybrid
-Image type is set to Line Art

    Anyone have any suggestions? I don't want to spend the rest of
my life glued to the printer :-)

    José
-- 
José L Gómez Dans			PhD student
Tel: +44 114 222 5582			Radar & Communications Group
FAX; +44 870 132 2990			Department of Electronic Engineering
					University of Sheffield UK
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