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File: @(#)$Id: README,v 2.6 2000/11/09 18:33:58 Martin Beta $
Contents: README file for the pcl3 distribution
Author: Martin Lottermoser, Greifswaldstrasse 28, 38124 Braunschweig,
Germany. E-mail: Martin.Lottermoser@t-online.de.
[...]
8. There is also a bug in ghostscript's default configuration for the
undercolour removal and black generation functions. It shows up when
printing PostScript documents using the RGB colour space ("setrgbcolor" or
"sethsbcolor") on a device where the CMYK space is the native colour space;
this is the case for pcl3 if you specify "-sColourModel=CMYK". The bug
results in black being printed as a mixture of cyan, magenta, and yellow.
On my printer, this is a slightly greenish grey with fuzzy edges. My
subjective impression is that correcting this bug leads to sharper-looking
images.
[...]
I generated a patch as suggested from Martin Lottermoser
-andreas
--- lib/gs_init.ps.orig Mon Jan 8 20:47:39 2001
+++ lib/gs_init.ps Mon Jan 8 20:49:02 2001
@@ -1229,7 +1229,7 @@
% Set the default screen and BG/UCR.
/.setdefaultbgucr {
systemdict /setblackgeneration known {
- { pop 0 } dup setblackgeneration setundercolorremoval
+ {} dup setblackgeneration setundercolorremoval
} if
} bind def
/.useloresscreen { % - .useloresscreen <bool>
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