On Jul 18, 11:37 am, amontesd wrote:
> Hello everyone,
>
> I have and SCO Openserver 6 with 2 remote printers, what is happening
> is that our lev5 application generates several print jobs, in sequence
> but with very short time one after the other, but when printed they
> are not in sequence. If we sent the same print job again, it will keep
> losing the sequence but with no pattern. With in the application we
> can print to screen where we see they are in order. We think this is
> happening when being spooled to print in Unix.
>
> Thanks in advance for all the help you can provide.
>
> Nestor.

Three possibilities for your symptoms:

A) The application does not complete the print jobs and hand them off
to the spooler in the order you see.

B) After weighing other factors, e.g., priority, the local print
spooler (if that's what you're using) is changing the order.

C) Your remote printers take into account their own memory and desk
requirements and how long it takes them to compose the jobs and print
them in a convenient order for them.

Although you posit (B), that's the least likely. You can verify
whether (A) is the case by examining the log of print school requests.
(/var/spool/lp/logs/requests). You don't specify how you're reaching
the remote printers (hpnpf?) but that method may have its own log.
You can check that to see in what order the jobs are being sent.

--RLR

On Jul 19, 11:38 am, ThreeStar wrote:
> On Jul 18, 11:37 am, amontesd wrote:
>
> > Hello everyone,
>
> > I have and SCO Openserver 6 with 2 remote printers, what is happening
> > is that our lev5 application generates several print jobs, in sequence
> > but with very short time one after the other, but when printed they
> > are not in sequence. If we sent the same print job again, it will keep
> > losing the sequence but with no pattern. With in the application we
> > can print to screen where we see they are in order. We think this is
> > happening when being spooled to print in Unix.
>
> > Thanks in advance for all the help you can provide.
>
> > Nestor.
>
> Three possibilities for your symptoms:
>
> A) The application does not complete the print jobs and hand them off
> to the spooler in the order you see.
>
> B) After weighing other factors, e.g., priority, the local print
> spooler (if that's what you're using) is changing the order.
>
> C) Your remote printers take into account their own memory and desk
> requirements and how long it takes them to compose the jobs and print
> them in a convenient order for them.
>
> Although you posit (B), that's the least likely. You can verify
> whether (A) is the case by examining the log of print school requests.
> (/var/spool/lp/logs/requests). You don't specify how you're reaching
> the remote printers (hpnpf?) but that method may have its own log.
> You can check that to see in what order the jobs are being sent.
>
> --RLR

The printers are configured as LPD, I also configured them using HPNP,
this second option was worse in results. By disconnecting the cable
and/or disabling printer I see all print jobs spooled in sequence,
however when released to the printer it loses it. I have to mention
that I'm using LPONLCR filter in both LPD (printcap file) and HPNP
(model.orig script).

I configured netcat, that fixed the problem about printing in
sequence!, however after the first page prints, the print quality and
fonts change somehow!

I'll try troubleshooting the problem a little more as RLR suggests and
will post the results here.

Thanks for all your help.