[IPP] Fwd: [Printing-architecture] CMD: field of device ID, which entry for PWG Raster?

[IPP] Fwd: [Printing-architecture] CMD: field of device ID, which entry for PWG Raster?

[IPP] Fwd: [Printing-architecture] CMD: field of device ID, which entry for PWG Raster?

Michael Sweet msweet at apple.com
Tue Nov 10 16:03:46 UTC 2015


Ira/Till,

> On Nov 10, 2015, at 9:24 AM, Ira McDonald <blueroofmusic at gmail.com> wrote:
> 
> Hi Till,
> 
> Forwarding to the PWG IPP WG list for comment.  I'm not sure what the
> best practice would be for the IEEE 1284 Device ID CMD field for PWG
> Raster.
> 
> Mike - suggestions?

Per PWG 5107.2:

Conforming implementations of this specification SHOULD use IANA Printer MIB Interpreter Types (primary) or MIME Media Types (secondary) instead of private types, for interoperability.


The current IANA Printer MIB (http://www.iana.org/assignments/ianaprinter-mib/ianaprinter-mib) has the following:

PrtInterpreterLangFamilyTC ::= TEXTUAL-CONVENTION
...
        langPWGRaster(84),   -- Not in RFC 1759
                             -- PWG 5102.4: PWG Raster Format
                             -- ftp://ftp.pwg.org/pub/pwg/candidates/
                             --   cs-ippraster10-20120420-5102.4.pdf
                             -- MIME type "image/pwg-raster"
which means that the CMD field SHOULD contain either 'PWGRaster' (preferred) or 'image/pwg-raster'.

> 
> Cheers,
> - Ira
> 
> PS - I'll forward responses back to the Open Printing mailing list.
> 
> Ira McDonald (Musician / Software Architect)
> Co-Chair - TCG Trusted Mobility Solutions WG
> Chair - Linux Foundation Open Printing WG
> Secretary - IEEE-ISTO Printer Working Group
> Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG
> IETF Designated Expert - IPP & Printer MIB
> Blue Roof Music / High North Inc
> http://sites.google.com/site/blueroofmusic <http://sites.google.com/site/blueroofmusic>
> http://sites.google.com/site/highnorthinc <http://sites.google.com/site/highnorthinc>
> mailto: blueroofmusic at gmail.com <mailto:blueroofmusic at gmail.com>
> Winter  579 Park Place  Saline, MI  48176  734-944-0094
> Summer  PO Box 221  Grand Marais, MI 49839  906-494-2434
> 
> 
> ---------- Forwarded message ----------
> From: Till Kamppeter <till.kamppeter at gmail.com <mailto:till.kamppeter at gmail.com>>
> Date: Tue, Nov 10, 2015 at 9:08 AM
> Subject: [Printing-architecture] CMD: field of device ID, which entry for PWG Raster?
> To: Open Printing <printing-architecture at lists.linux-foundation.org <mailto:printing-architecture at lists.linux-foundation.org>>
> 
> 
> Hi,
> 
> the IEEE-1284 device ID has a CMD: field to list the page description languages (PDLs) which a printer supports. What does it have to contain according to the standards when the printer supports PWG Raster as input data format?
> 
>    Till
> _______________________________________________
> Printing-architecture mailing list
> Printing-architecture at lists.linux-foundation.org <mailto:Printing-architecture at lists.linux-foundation.org>
> https://lists.linuxfoundation.org/mailman/listinfo/printing-architecture <https://lists.linuxfoundation.org/mailman/listinfo/printing-architecture>
> 
> _______________________________________________
> ipp mailing list
> ipp at pwg.org
> https://www.pwg.org/mailman/listinfo/ipp

_________________________________________________________
Michael Sweet, Senior Printing System Engineer

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