While we're on the subject of printer-uri, here's excerpt from the PRO =
document:
3.9 (Attribute) Name
Some attributes are encoded in a special position. These attribute are=
:* "printer-uri": When the target is a printer and the transport is HTTP=
or HTTP
(for TLS), the target printer-uri defined in each operation in the IPP=
model
document SHALL be an operation attribute called "printer-uri" and it SH=
ALL also
be specified outside of the operation layer as the request-URI on the
Request-Line at the HTTP level. This
*
Just to be perfectly clear, is this saying that the printer-uri must al=
ways
appear in BOTH the HTTP Request-Line AND the Operation attribute group?=
ipp-owner at pwg.org on 03/31/98 04:29:02 PM
Please respond to ipp-owner at pwg.org
To: ipp at pwg.org
cc:
Subject: IPP> printer-uri and job-uri
Greetings.
There are two issues related to printer-uri and job-uri that need
some clarifications.
Issue1:
In the IPP Model document, there is no specification for the
value-tags of "printer-uri" and "job-uri" attributes in a IPP
request.
According to the IPP Model document, section 3.1.3, the
"printer-uri" attribute contains the Printer object's URIs
which is one of the values in the Printer object's "printer-
uri-supported" attribute. This implies that the value-tag
of "printer-uri" attribute must be of type "uri". Similarly,
the value-tag of "job-uri" attribute should be "uri" as well.
Issue 2:
In the "Note:" section of 3.2.1.1 in the IPP Model document,
it was mentioned that "The simplest Print-Job Request
consists of just the Document Content, the "attributes-
charset" and "attributes-natural-language" operation
attributes, and nothing else." However, in the description
of Print-Job Request of section 15.3.4.3, the "printer-uri"
attribute is specified as a MUST (indicated by (M)) and also
in section 3.1.3 of the same document, it was indicated that
either "printer-uri" or "job-uri" MUST appear in every
operation request. There seems to be some inconsistency here.
Please send your remarks/comments to the mailing list.
-PB
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