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#1 (**permalink**) 02-15-2008, 05:43 PM

I have a customer with an OSR 5.0.7 MP4 system, using a print-server
that doesn't support direct printing using netcat and therefore has to
be used via LPD.

Mostly this works but occasionally the lpd process hangs. I note that
syslog contains many messages saying the printer "doesn't support the
extended protocol"

This is strange since I didn't configure the printer with SCO's
proprietary "extended protocol" - there is certainly no ":ex:" in
/etc/printcap.

I have suggested replacing the print server (A Dynamode 3-parallel-port
device) with a Jetdirect or D-Link (which are OK in my experience).

I've searched in SCO TA and Googled c.u.s.m in vain. Does anyone have
any ideas about the cause of the message?

#2 (**permalink**) 02-15-2008, 05:44 PM

In article <dr88jq$g5c$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com>,
Ian Wilson <scobloke2@infotop.co.uk> wrote:
>I have a customer with an OSR 5.0.7 MP4 system, using a print-server
>that doesn't support direct printing using netcat and therefore has to
>be used via LPD.
>
>Mostly this works but occasionally the lpd process hangs. I note that
>syslog contains many messages saying the printer "doesn't support the
>extended protocol"
>
>This is strange since I didn't configure the printer with SCO's
>proprietary "extended protocol" - there is certainly no ":ex:" in
>/etc/printcap.

A very cursory check suggests that this message is produced if you attempt to
use lpmove to move a job *from* a printer that does not support the extended
protocol (does not have the "ex" capability).

I don't know of any problems that cause lpd to hang. For a quick fix, you
might consider moving them to CUPS, or at least moving that printer to CUPS; it
has its own lpd backend.

John
--
John DuBois spcecdt@armory.com KC6QKZ/AE http://www.armory.com/~spcecdt/

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OSR507 MP4 lpd "doesn't support the extended protocol"