Problem printing to Samsung ML 2571N

[Christer Sandberg]

Wednesday 11 July 2007 wrote Goffioul Michael:
> > Thanks for your detailed instructions!
> > The error log says repeatedly "cupsdAuthorize: No
> > authentication data provided" but I don't know what to do
> > about it. Both error_log and cupdsd.conf are
> > here:http://www.idt.mdh.se/~csg/cups/
>
> The only error I can see is
>
> E [11/Jul/2007:08:25:16 +0200] PID 6728 (/usr/lib/cups/backend/ipp)
> stopped with status 1!
>
> Looking at the debug output before this line, it appears to
> me that the "ipp" backend receives data in PS format (the
> only filter that seems to be used is "pstops"), but just before
> the error, you can see this:
>
> D [11/Jul/2007:08:25:14 +0200] [Job 1] Connected to 192.168.0.141:631
> (IPv4)...
> D [11/Jul/2007:08:25:14 +0200] [Job 1] Getting supported attributes...
> D [11/Jul/2007:08:25:14 +0200] [Job 1] document-format-supported (3
> values)
> D [11/Jul/2007:08:25:14 +0200] [0] = "application/octet-stream"
> D [11/Jul/2007:08:25:14 +0200] [1] = "application/PCL"
> D [11/Jul/2007:08:25:14 +0200] [2] = "application/x-Epson"
>
> Apprently, PS is not part of supported document format. Could it be
> the cause of your problem?
I don't know what "ipp backend" is - does that mean the printer? According to 
the spec (as given by Samsung) ML 2571N supports both PCL6 and PS3.

So, do you have any idea what can I do to get around it?
-- 
Christer