[IPP] Re: IPP JPS3 - "printer-supply[-description]" encodings
Michael Sweet
msweet at apple.com
Wed Mar 30 14:41:11 UTC 2011
Pete,
You are correct, and I *think* we have this wording in the current PSX (will check - if not that is an important oversight!). Will make sure that I include the appropriate verbiage in the JPS3 spec...
Thanks!
On Mar 30, 2011, at 4:49 AM, Zehler, Peter wrote:
> It is my understanding that 1SetOf is unordered. But rfc2911 states “Sets are normally unordered. However each attribute description of this type may specify that the values MUST be in a certain order for that attribute.” I assume that the description will detail the ordering including the mapping to the Printer MIB and any ordering relationship between attributes.
>
>
> Peter Zehler
>
> Xerox Research Center Webster
> Email: Peter.Zehler at Xerox.com
> Voice: (585) 265-8755
> FAX: (585) 265-7441
> US Mail: Peter Zehler
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>
> From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of Michael Sweet
> Sent: Tuesday, March 29, 2011 5:19 PM
> To: Ira McDonald
> Cc: ipp at pwg.org
> Subject: [IPP] Re: IPP JPS3 - "printer-supply[-description]" encodings
>
> Ira,
>
> I'm working on getting this text into a new rev of the JPS3 specification. Some comments below...
>
> On Mar 28, 2011, at 7:55 PM, Ira McDonald wrote:
> ...
> (3) prtMarkerSuppliesColorantIndex is omitted in "printer-supply"
> because it is redundant with prtMarkerColorantIndex for the rows that
> include colorant information.
>
> Do we even need the colorantIndex from the prtMarkerColorant table? Seems like unnecessary information that will never get used in this composite view of the two tables...
>
> Same for Index - we implicitly already have it (1setOf is ordered) so why include it?
>
> MaxCapacity should be REQUIRED since otherwise how do you interpret Level?
>
> Finally, I would make at least the colorant Value conditionally required, otherwise the data can't be represented properly in UI.
>
>
> Table 6 - Keywords for printer-supply
>
> SNMP Supply Object IPP Datatype IPP Keyword Conformance
> ------------------ ------------ ----------- -----------
> prtMarkerSupplies...
> Index (note 1) Integer index RECOMMENDED
> MarkerIndex (note 2) Integer markerindex OPTIONAL
> ColorantIndex (note 3) Integer --- ---
> Class String class RECOMMENDED
> Type String type REQUIRED
> SupplyUnit String unit RECOMMENDED
> MaxCapacity Integer maxcapacity RECOMMENDED
> Level Integer level REQUIRED
>
> prtMarkerColorant...
> Index Integer colorantindex OPTIONAL
> Role String colorantrole OPTIONAL
> Value String colorantname OPTIONAL
> Tonality Integer coloranttonality OPTIONAL
>
> __________________________________________________
> Michael Sweet, Senior Printing System Engineer, PWG Chair
>
>
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