Resuming job

[Helge Blischke]

Gilles Germon wrote:

> cups 1.3.9.17
> Every month, a customer has to print a very big job.
> Details here:
> https://answers.launchpad.net/ubuntu/+source/cups/+question/94758
> 
> I thought this issue resolved, but the operator called me this morning and
> said: "when I have put new paper into the printer, it has prints a few
> pages (the printer buffer) and has restarted the print job from the
> beginning"
> 
> To be short:
> * If  ErrorPolicy is set to stop-printer, cupsenable enable the printer
> but the current job is never requeued.
> 
> * If  ErrorPolicy is set to retry-job the job restart from the beginning.
> 
> What is the parameter to tell cups : wait until the printer is online and
> continue to print the job
> 
> TIA
> Gilles

Gilles,

your proglem is probably that the printer closes the connection after some 
timeout value (I know that from various HP printers driven via JetDirect 
interfaces). As you use the lpd backend for your printer, there is no chance 
to continue the print job after the connection has been closed by the 
printer at the interruption point.

As far as I can see, the only chance is - regardless of the backend you use 
- to set an infinite idle timeout value on the printer itself, if that is 
possible at all.

Helge

P.S.: If the printer offers a well implemented IPP interface, it could be 
possible to qurey the printer for the successfully printed sheets or pages 
and continue from that point at the job restart, but I'm not sure if CUPS 
already supports a job resume like this.