Re: [Printing-architecture] [IPP] How to send a job to printer's internal memory to have it available for reprinting via IPP

[Michael Sweet <msweet@msweet.org>]

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Zdenek,

> On Jul 29, 2022, at 4:08 AM, Zdenek Dohnal via ipp <ipp@pwg.org> wrote:
> 
> Hi all,
> 
> I have a user (Neil in CC) in Fedora (see comment https://bugzilla.redhat.com/show_bug.cgi?id=2095755#c22 ) who has a Kyocera printer, which is capable of driverless printing, however he sticks with classic driver, because it can save the print job data directly into the printer's memory, and user can reprint the job directly on the printer (he doesn't want to reprint from CUPS interface on PC).
> 
> Is something similar doable via driverless printing over IPP 2.0+ via CUPS? Or is there a standard defining such functionality?

Yes - PWG 5100.11-2010: IPP Job and Printer Extensions - Set 2 (JPS2) defined a job save functionality.  But we are in the process of updating that specification and how job save is implemented because (as far as we know) nobody actually shipped that version of job save.

The update has been renamed to IPP Enterprise Printing Extensions v2.0 (EPX), available here as a prototype draft:

    https://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippepx20-20211101.pdf

(FWIW, this specification is also where "job-password" is defined, and that *has* been implemented widely...)

> I can imagine a similar behavior with IPP can be achieved if the printer has a job log and saves the job files for some time (just as cupsd does), and provides a button in menu or somewhere which will reprint the job - but this whole would have to be implemented in printer's firmware...

That's exactly the functionality that has been proposed in the update to 5100.11.

________________________
Michael Sweet


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