Netpr/Netstandard and a Datability VCP200 - Printing Problems

Netpr/Netstandard and a Datability VCP200 - Printing Problems

Post by Philip Ch » Sat, 24 Jul 1999 04:00:00


We are in the process of migrating our applications from a SparcServer
1000 to a new U450E box running Solaris 2.6.  We have a Datability VCP200
terminal server of the same vintage as our SS1000.  The VCP200 has one of
it's serial ports connected to a line printer and it acts as a TCP print
server accepting raw TCP connections on port (at the moment) 2001.

The VCP200 came with software several utilities including tcpsend which
interacts with the lp system and pipes the output to the VCP200.

Since Solaris 2.6 supports printing over raw TCP/IP natively, I decided to
use the netstandard method of printing.  While setting up was dead easy
following the instructions.  Performace has been iffy.  The printer would
print full speed for 45 seconds, pause for 20, run for 45 seconds etc.
Playing with the timeout parameter using lpadmin I've reduced the pauses
to about 5 seconds.  lpstat -o keeps claiming that the printer has
faulted.  I'm just guessing here but this seems like a case of (lack of)
buffering on the VCP200 and netpr not backing off gracefully.  Also print
jobs sent from other systems to this E450 occasionally get lost or not
printed.  On the remote system e-mail is sent to the user stating a print
job has failed.

So is there a netpr parameter I can tweek or should I recompile the
tcpsend utility from Penril/Datability and use that instead of the
netpr/netstandard method?


 Philip Chee:  Tasek Corporation Berhad, P.O.Box 254, 30908 Ipoh, MALAYSIA

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1. Printing to a print server, question about netpr

Hi folks

I've been printing to my HP 1120 from my workstation for
quite some time now using Ghostscript (v5.50) as a filter
based on the instructions on the web page below. The 1120 is
connected to my LAN, via a HP printserver.

This is the filter.

FILTER="/usr/local/bin/gs -q -dSAFER -dNOPAUSE -sDEVICE=cdjc
olor -SOutputFile=- - "

I have a MAC client that I setup to queue print jobs on that
workstation. The MAC sends the print job and the workstation
accepts it just fine, but fails to process the postscript
through the filter I have configured.  In
/var/lp/logs/lpsched I have the error,

msg: (Usage: netpr -I .....)

What is netpr? I couldn't locate any man pages that explain
it. Anyone have any thoughts on how I might configure the
queue to process the MAC's PS through the filter?

Thanks in advance for the help


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