[IPP] Potential errata/update for PWG Raster Format and/or IPP Everywhere specs

[IPP] Potential errata/update for PWG Raster Format and/or IPP Everywhere specs

[IPP] Potential errata/update for PWG Raster Format and/or IPP Everywhere specs

Michael Sweet msweet at apple.com
Wed May 21 17:34:06 UTC 2014


Ira,

On May 21, 2014, at 12:48 PM, Ira McDonald <blueroofmusic at gmail.com> wrote:
> Hi,
> 
> I agree with Bill's comments.
> 
> I suggest that the Implementors Guide should document that the intended
> meaning of 'attempted' in RFC 2911 was and is 'best-effort'.  There is no
> wiggle room in RFC 2911 (page 139), in my reading, that the Printer can
> say 'attempted' and then NOT make the attempt.

The wiggle room is that the printer can make the attempt and fail, leading to inconsistent results and (likely) no logging of/state changes for the issue. But if we can document things properly in the Implementor's Guide I think we'll be in a lot better shape.

FWIW, I don't think it would be hard to support 'guaranteed' for JPEG or PWG Raster, but PDF is another matter... :/

(and older PDLs like PostScript and PCL are a lost cause for that sort of thing...)

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair

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