CUPS Fax Backend Howto?

Helge Blischke h.blischke at acm.org
Fri Jul 8 04:09:55 PDT 2011


Tilman Schmidt wrote:

> Thanks for all the input. I have now created a new version of my
> capifax CUPS backend which appears more or less usable, although
> I'm not quite happy with the solution. I have put it up again at
> 
> http://www.phoenixsoftware.de/~ts/capifax4CUPS.tgz
> 
> for your perusal.
> 
> 1. When it doesn't find a destination number in one of the places
> where the command line "lp" command might put it, it now looks
> for an X display where the owner of the job is logged on and
> tries to pop up a question there using the "zenity" command.
> I consider this a hack, and there are lots of corner cases where
> it works differently from what the user expects, or not at all.
> 
> 2. Conversion from PostScript to TIFF G3 is now done in a separate
> filter as proposed by Helge Blischke. This seems to fix most of
> the cases where previously CUPS would try to feed the backend
> input formats it couldn't handle.
> 
> 3. The options "own MSN", "own ID" and "header" must still be
> entered into the backend script with a text editor.
> 
> Is that the best CUPS can do?

Ad 3.:
these options can be appended to the device-uri, separated by a "?", but of 
course these options must be evaluated by the backend script itself.

This way it is possible to configure several fax "printers" with different 
options using the same backend script.

Helge





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