Smith,
We wanted "printer-service-contact-col" to be a collection with the same member attributes as "printer-contact-col" and "system-contact-col", so the first form is what you should go with.
(FWIW, the printer MIB element is just an octet string that has no defined format...)
> On Apr 22, 2021, at 5:55 PM, Kennedy, Smith (Wireless & IPP Standards) via ipp <ipp at pwg.org> wrote:
>> Signed PGP part
> Hi there,
>> I'd like to pre-screen the addition of "printer-service-contact" to IPP Enterprise Printing Extensions v2.0. But I'm unsure how to model it. I have found "printer-contact-col" and "system-contact-col" in IPP System Service (5100.22). Should I clone that?
>> X.Y printer-service-contact-col (collection | unknown)
>> This REQUIRED Printer Description attribute identifies the Printer service agent. Table 10 lists this attribute's member attributes. When specified in a Set-Printer-Attributes operation [RFC3380], the collection value MUST contain all REQUIRED member attributes as the entire collection value is replaced.
>> X.Y.1 contact-name (name(MAX))
>> This REQUIRED member attribute contains the contact name, e.g., "Bob Smith".
>> X.Y.2 contact-uri (uri)
>> This REQUIRED member attribute contains the contact URI, e.g., “mailto:bob at example.com”.
>> X.Y.3 contact-vcard (1setOf text(MAX))
> This RECOMMENDED member attribute contains the contact vCard [RFC6350].
>>>> Or should I do something simpler, like this:
>> X.Y printer-service-contact (uri)
>> This REQUIRED Printer Description attribute specifies a URI used to contact the service agent responsible for the Printer. The value MUST use the "mailto", "tel", "http" or "https" URI schemes.
>> Thoughts?
>> Smith
>> /**
> Smith Kennedy
> HP Inc.
> */
>>>
________________________
Michael Sweet