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Date: Mon, 13 May 1996 08:26:30 +0200 (MET DST)
From: "Christoph P. Kukulies" <kuku@gilberto.physik.rwth-aachen.de>
Subject: Re: tcp printing problem
In-reply-to: <9605122239.AA23326@fslg8.fsl.noaa.gov>
To: kelly@fsl.noaa.gov (Sean Kelly)
Cc: kuku@gilberto.physik.rwth-aachen.de,
        freebsd-questions@freefall.freebsd.org
Reply-to: Christoph Kukulies <kuku@gilberto.physik.rwth-aachen.de>
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> >>>>> "Christoph" == "Christoph P Kukulies" <kuku@gilberto.physik.rwth-aachen.de> writes:
> 
>     Christoph> I'm having a weird printer problem.  A Declaser 3500 is
>     Christoph> on the network and I tried to establish TCP/IP printing
>     Christoph> to that printer.  On advice of Garett Wollman I'm using
>     Christoph> ttcp (comp.unix.sources)
> 
> Don't use an output filter.  LPD will start an output filter to print
> the header page.  It then sends the magic sequence \031\001 and will

Ah, now I understand what this magic sequence in printjob.c (lpd) is for.

> wait for the output filter to suspend itself, which ttcp or the script
> that's calling it will never do.
> 
> Instead, just use an input filter *only*.
> 
> /etc/printcap:
> 
> lp0|lp||rlp|lw|ps|postscript|PostScript|lp1|lw1|postscript1|PostScript1:\
>         :lp=/dev/null:\
>         :mx#0:\
>         :if=/usr/local/bin/printe:\
>         :sd=/var/spool/printe:
> 
> /usr/local/bin/printe:
> 
> #!/bin/sh
> exec /usr/local/bin/infilter | /usr/local/bin/ttcp -D -t -p 10001 10.0.0.64
> 
> Finally, ttcp is really hefty for this, but it should work.  About 10
> lines of perl in the handbook under `Printing' should also do the job.
> 
> -- 
> Sean Kelly                          
> NOAA Forecast Systems Laboratory    kelly@fsl.noaa.gov
> Boulder Colorado USA                http://www-sdd.fsl.noaa.gov/~kelly/
> 

--Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de