First, one clarification: IPP is not port 9100. Port 9100 is variously 
described as "JetDirect" or "raw TCP".

As for the port getting disabled: Are you saying this happens only with 
the RPM software, not when going directly to the device? This would sound 
like a weakness in the RPM software.

On Tue, 5 Oct 2010, George Gallen wrote:

> it's a Canon Imagerunner copier/printer with it's own "pc" acting as a server.
> I'm not really sure what OS it's running, I don't think it's windows.
> 
> I'm submitting lpd protocol to it, directly to it's IP
> 
> I switched our side so that cups sends to a Windows PC running RPM lpd 
> server, 
>    and RPM then sends the raw data to a windows network printer (same 
> copier/server)
>    except it's getting it's jobs through the networks windows printer server, 
> and
>    the jobs print as expected.
> 
> So, it's definitely in the Canons PC's lpd server specifically.
> 
> This all sounds great..and solved, EXCEPT, we have found another little issue
> with cups, it seems when the lpd server is busy, cups triggers the printer 
> queue
> to disable (ErrorPolicy stop-printer), which is extremely annoying to have to
> keep reenabling the queue when you send a flurry of jobs. So we changed it so 
> the
> ErrorPolicy retry-job instead, now it doesn't take the queue offline, instead 
> now
> it just doesn't send a job to the server, but still deletes it from it's 
> queue.
> 
> So....Until I can get this lost job issue solved, looks like I have choices:
> 
> 1. Look into changing from lpd protocol (port 515) to Ipp protocol (port 
> 9100) (next attempt)
> 2. See if the server's admin can set something so the lpd server does FIFO
> 3. have fun sorting printed jobs back into their correct order!
> 
> > -----Original Message-----
> > From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-
> > boun...@listserver.u2ug.org] On Behalf Of Bob Rasmussen
> > Sent: Tuesday, October 05, 2010 1:50 PM
> > To: U2 Users List
> > Subject: Re: [U2] CUPS printing and sequence of jobs
> > 
> > Is this with a standalone hardware printer server, or a PC acting as a
> > printer server? If the latter, with what software on the PC?
> > 
> > Our Print Wizard software for Windows can act as a printer server. We
> > have
> > *some* capabilities for job sequencing, and we could explore more
> > options
> > with you if this is critical.
> > 
> > On Tue, 5 Oct 2010, George Gallen wrote:
> > 
> > > the debug info shows they were sent to the printer in the numerical
> > unix job# order.
> > > I disabled the printer, sent the jobs again, and the unix job# order
> > was the same
> > >    as the order sent, I renabled the printer and when the jobs
> > printed they were
> > >    in random order, according to the cups log, they were sent in the
> > correct order.
> > >
> > > So it looks like it's the receiving print server that is sending them
> > in random
> > >    order to the printer, of course the admin for that server swears
> > it does FIFO...
> > >
> > > Thanks for the debug tip...
> > >
> > > > -----Original Message-----
> > > > From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-
> > > > boun...@listserver.u2ug.org] On Behalf Of Steve Romanow
> > > > Sent: Saturday, October 02, 2010 12:51 PM
> > > > To: U2 Users List
> > > > Subject: Re: [U2] CUPS printing and sequence of jobs
> > > >
> > > > Maybe turn the logging up a notch and verify the order they are
> > being
> > > > submitted?  It might not be considered "submitted" until it
> > finishes
> > > > spooling, where a large job can be surpassed by smaller jobs.  We
> > would
> > > > not really want it to "block" on large print jobs.  Take for
> > instance
> > > > you start spooling an invoice run that may take 5-6 minutes to
> > spool,
> > > > you do you not want to process any other jobs while this thing is
> > > > transferring to the queue?
> > > > _______________________________________________
> > > > U2-Users mailing list
> > > > U2-Users@listserver.u2ug.org
> > > > http://listserver.u2ug.org/mailman/listinfo/u2-users
> > > _______________________________________________
> > > U2-Users mailing list
> > > U2-Users@listserver.u2ug.org
> > > http://listserver.u2ug.org/mailman/listinfo/u2-users
> > >
> > >
> > 
> > Regards,
> > ....Bob Rasmussen,   President,   Rasmussen Software, Inc.
> > 
> > personal e-mail: r...@anzio.com
> >  company e-mail: r...@anzio.com
> >           voice: (US) 503-624-0360 (9:00-6:00 Pacific Time)
> >             fax: (US) 503-624-0760
> >             web: http://www.anzio.com
> >  street address: Rasmussen Software, Inc.
> >                  10240 SW Nimbus, Suite L9
> >                  Portland, OR  97223  USA
> > _______________________________________________
> > U2-Users mailing list
> > U2-Users@listserver.u2ug.org
> > http://listserver.u2ug.org/mailman/listinfo/u2-users
> _______________________________________________
> U2-Users mailing list
> U2-Users@listserver.u2ug.org
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> 
> 

Regards,
....Bob Rasmussen,   President,   Rasmussen Software, Inc.

personal e-mail: r...@anzio.com
 company e-mail: r...@anzio.com
          voice: (US) 503-624-0360 (9:00-6:00 Pacific Time)
            fax: (US) 503-624-0760
            web: http://www.anzio.com
 street address: Rasmussen Software, Inc.
                 10240 SW Nimbus, Suite L9
                 Portland, OR  97223  USA
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