Several HP printers have a configuration setting called "Robust XON/XOFF".
This provides positive verification that the printer is online by sending an
XON every second or so.  If my memory is correct, termtype 22 expects that
stream of XONs.  The absence of them means the printer isn't available.  If
your printers don't have the robust XON option, use termtype 18.

-----Original Message-----
From: Sam Knight [mailto:[log in to unmask]]
Sent: Thursday, February 08, 2001 9:30 AM
To: [log in to unmask]
Subject: Re: Printers coming Unspooled


Some more info:
Each printer is connected to a separate DTC (different
buildings).  The connectors on both DTC's are ATP and
the printer types are configured as 22.

One printer is within 20 feet of the DTC and the other
is about 50 feet away from its DTC.

RFI???

Greg Skvorak wrote:

> I assume the serial printers are connected to the HP3000 via
> a DTC (Data Terminal Controller?). Can you issue a STARTSPOOL
> on the printer and it will print for at least a short period?
> It is sounding like either a distance issue or perhaps RFI.
> There may be some console messages when the spooling ends for
> the printer in question. What models are the serial printers?
> Is the serial connection RS232 or RS422 (different distance
> limitations...)?
> Greg Skvorak
> Beechglen Development, Inc.
> Cincinnati, Ohio
> (513)922-0509
> ----- Original Message -----
> From: "Sam Knight" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, February 08, 2001 6:15 AM
> Subject: Printers coming Unspooled
>
>
>
>> We have 2 serial line printers and several networked laser
>> printers.  We are having a problem with the serial printers
>> coming unspooled during a print job.  There are long pauses
>> during the printing and sometimes the printing continues and
>> other times the printer comes unspooled.  This does not happen
>> to the laser networked printers.
>>
>> Is there a configuration item for printers that sets the
>> amount of, for lack of a better word, idle time before the
>> system unspools the device?
>>
>> --
>> Sam Knight, Senior Programmer/Analyst
>> Jacksonville University
>> Jacksonville, Florida 32211


--
Sam Knight, Senior Programmer/Analyst
Jacksonville University
Jacksonville, Florida 32211