From: Shannon Adams (shannon_adams68@yahoo.com)
Date: Thu Mar 06 2008 - 16:07:38 EST
SunOS brsprod 5.9 Generic_118558-06 sun4u sparc SUNW,Sun-Fire-V440
CUPS and serial printers
I have been working on installing a good printing system on our Sun machines for a while now. After much research, I choose ESP Print Pro.
I attempted to go live, but ran into a major roadblock. We have over 70 Datamax Prodigy printers that are hooked via a serial connection to terminal servers. I emailed ESP support and their response was not what I had hoped for. Details are below.
===================================
MY TICKET REQUEST:
We attempted to go live with ESP Pro, but had to postpone because we could not get our serial terminal printers working. Basically, they are connected to a port on a terminal server and do not have an IP address.
One example follows: "mc056" is a serial printer hooked to a terminal server with an IP address of 10.10.4.22 and a hostname mc-annex-n-9 on port 7005. I tried several different options in the web GUI setup, but kept getting messages such as:
"Network host 'mc-annex-n-9' is busy; will retry in 15 seconds..."
Device URI: socket://mc-annex-n-9:7005
and
"Network host '10.10.4.22' is busy; will retry in 30 seconds..."
Device URI: http://10.10.4.22:631/ipp/7005
THEIR RESPONSE:
12 Mar 2007 @ 09:15 by mike
First, we don't support the "reverse telnet" protocol that seems to be required
by this particular terminal server. We need a straight "passthrough" interface
that allows us to connect to a numbered port on the terminal server to
communicate with the device.
That said, if you already have software to create a pseudo-tty in /dev, just
choose "Internet Printing Protocol" from the GUI and use a "file" URI to
communicate instead:
file:///dev/name
Keep in mind that this trick will only work for non-raw queues, as the "file"
backend is mapped internally to just open the specified file instead of running
an external program. You can get around this limitation with a short interface
script that just copies the print file to the device.
===================================
Does anyone have any experiences with this type setup? Are there any other recommended printing packages that would support this type configuration? I would like to swap out all of our serial printers with Ethernet, but that will take a while ($$$).
Thanks,
Shannon
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