[Xprint] HP Deskjet 870 model config files and color problems

[Drew Parsons]

On Wed, 2006-10-18 at 23:36 -0700, orangevixen at wolfsinger.com wrote:
> Hi, I was not able to search the lists if this question was already 
> answered (list search page goes to list archive download page) and I did 
> not find it in the FAQ.
> 
> When I use XPutImage() with a 24 bit depth TrueColor X Visual to put a 
> colored image on to X Print's drawable, the colors that are not pure in 
> color (such as yellowish grey) come out as gray or some other color.
> 
> I am not an expert on printing but I was wondering if I need to do the 
> "dithering" on my client side or does X Print do this past its DDX level?
> 
> I have an HP Deskjet 870 CXI and I was wondering if there is a model 
> config file I should use (instead of the all purpose PS model). I wasn't 
> able to find a place to download model config files on the FAQ or the web 
> page.
> 
> -Tara

Hi Tara, Xprint is in something of a "janitorial" state, so there may
not be a true expert here to provide the correct answer you're after.
If you're creating an app to print from, you might want to see if Cairo
meets your needs. Cairo in a sense supersedes Xprint.

To help with your troubleshooting, one suggestion might be to print to
alternate printers, in particular to the PDF
"printer" (xp_pdf_spooldir). The output pdf file is sent
to /tmp/Xprintjobs/ (or ~/Xprintjobs/ on Debian).  Is the result any
different that way? You could similarly print to a postscript file and
see how amenable the output is to the standard postscript utilities. 

Drew