Problem printing to Samsung ML 2571N

[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?

Michael.