Roger Leigh wrote:
On Sun, Feb 13, 2011 at 12:28:22AM +0100, Bernard wrote:Roger Leigh wrote:On Sat, Feb 12, 2011 at 09:32:42AM -0500, Gilbert Sullivan wrote:On 02/12/2011 08:59 AM, Bernard wrote: ...snip...If, discarding the use of 'gv', I just print the ps file directly as follows: lpr -PDeskJet-1120C myfile.ps I get exactly the same printing result (poor quality, black and white)...snip... If I'm understanding correctly what you've written, it seems to me that your problem may not be ghostview. I think you might want to try specifying different drivers for your printer to see if others might work better. You might also want to provide a bit of information about your system. I run Debian testing on all of my systems, and I recently had to switch from hpijs drivers to CUPS+Gutenprint on all of my HP LaserJet printers for a similar problem. (They weren't dithering or shading properly, but simly printing black & white.)Note that while Gutenprint has excellent support for Epson, Canon and other colour inkjects, PCL-based HP deskjets are (AFAICT) only supported in black and white. Good for monochrome lasers where the fine dithering can greatly improve quality, but not so good for inkjets, so if this is the case, you might wasnt to look at hplip instead.But then I fail to understand: as explained in my original post, CUPS+GUTENPRINT does work with my DeskJet-1120C, it provides good quality color printing from OpenOffice as well as from the GIMP, only from GhostView does it print B/W with low qualityHmm, I do see that a number of HP Colour Deskjets are now listed, so you may well be correct. Historically, this was a problem; maybe that's fixed or partially fixed now.
Now ? But, as explained in my original post, the same CUPS config did allow good quality color printing of ps files using 'gv' (GhostView), as well as OpenOffice and the GIMP, before I replace Debian Sarge by Lenny, that is, in the date range 2006-2009.
gv is just using lpr/lp to print. So, if for example you print the file directly with "lpr -P printer $file.ps", is it still monochrome?
Yes it is.
With the GIMP, I am using the regular print dialogue... and it prints nicely with colors. It still does, for I have carried some more tests, so as to eliminate problems that could have arisen since.This will eliminate gs, in case it's causing the problem. When you print from the GIMP, are you using the regular Print dialogue, or are you using the "Print with Gutenprint" dialogue(gimp-gutenprint)?
The former prints via the normal printing system (as if you did it with lpr), and sends either the pixmap or the pixmap embedded in PostScript to the print queue. The Gutenprint dialogue does all the rendering inside GIMP and sends raw printer commands to the queue (lpr -o raw). If the printer is misconfigured in CUPS, that could explain why it works from the GIMP. It doesn't explain OpenOffice though.
Please see - in my more recent post - the results of my tests with CUPS. The test page from CUPS prints nicely with due colors.