PostScript & Qt [Re: KDE 3.1 final tarballs]

[Vadim Plessky]

On Monday 25 November 2002 10:06 pm, Kurt Pfeifle wrote:
|  >>
|  >>I've created the final KDE 3.1 tarballs last night. I will not update
|  >> them anymore unless there is a fix committed for a fatally bug,
|  >> otherwise things have to wait till KDE 3.1.1.
|  >
|  > Does the fact konqi cannot print with cups count as a fatal bug?
|
|  I confirm these facts:
|
|  * that konqi isn't printing any more on my standard office printer:
|     HP LaserJet 8000 ("Mopier") with PostScript Level 2 emulation.

LJ 8000 supports PCL6.  In fact, PCL6 is the *first* language for this device, 
and PS2 - second.
Also note tha PostScript in most of HP printers is not original one (not 
genuibne Adobe PostScript), so may be HP's implementation is not good enough

|
|  * konqi prints onto a PostScript Level 3 printer (original Adobe
|     RIP)

Good!
|
|  * I get this PostScript error for the level 2 printer:
|
|       ERROR: rangecheck
|       OFFENDING COMMAND: image
|       STACK:
|       -dictionary-

Can you try re-encode PS Lev.3 document to PS lev.2 (using GhostScript), and 
print resulting PS L2 file?

|
|  * I can view the konqi printfile just fine, using kprinter --> preview.
|     Both, gv and kghostview do work as previewers. My gs version is
|     SP Ghostscript 7.05.5 (2002-09-02) (my own compilation).

This means that HP's PostScript is broken.
I think quick fix for you would be to tune PS Printer in Qt so that it would 
generate PS Lev.2 code only.

|
|  * I can "Print to File (PostScript" with kprinter and view the file.
|     But printing this from the command line doesn't work for level 2
| printer -- same PostScript error.
|
|  * My suspicion goes to the PostScript prolog (made by Qt) which has a line
|     (around line 39 of the PS file):
|
|     "QCIcolor x 2 add get 0.11 mul add add cvi put}for QCIgray
| image}ie}D/di{"
|
|     containing the "OFFENDING COMMAND" above mentioned.
|
|  * it printed fine until about 4 days ago (my last konqi printouts
| according to my CUPS page_log and job history).
|
|  * I had a ~week old qt-copy and ~week old KDE-CVS HEAD compilation until
|     the weekend.
|
|  * over the weekend I updated qt-copy and CVS to KDE_3_1_RELEASE
|
|  I will now do a few more tests later (I need to go away now for an hour or
|  so), including prints to non-PostScript printers.
|
|  Cheers,
|  Kurt

-- 

Vadim Plessky
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