On Sat, Aug 27, 2011 at 12:43:45PM +0200, Rainer Dorsch wrote: > I have a black and white HP Laserjet 6P and when I print colored webpages they > are "translated" (dithered?) into black and white printouts, which is > perfectly ok and expected. What is unexpected though is that for me most > pages print by far too bright and are not readable at all. > > I am wondering if I could "hook" a gimp script into the printout chain which > does a processing which improves he printout quality for color pages on the > printer. > > It would also be perfectly acceptable for me, if I can define a second printer > in CUPS where the user sees a print preview and has a slide bar to adjust the > brightness of the printout (or if there are more then one dimension two or > three slide bars would be fine). Gutenprint has rather more advanced dithering algorithms than stock ghostscript, e.g. EvenTone. You could try setting up a separate print queue using the Gutenprint PCL driver; it has plenty of adjustment knobs to tweak the brightness, density, and dithering options. Hopefully there's some combination that will be to your taste! Regards, Roger -- .''`. Roger Leigh : :' : Debian GNU/Linux http://people.debian.org/~rleigh/ `. `' Printing on GNU/Linux? http://gutenprint.sourceforge.net/ `- GPG Public Key: 0x25BFB848 Please GPG sign your mail.
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