[IPP] RFC: Deprecate "pages-per-subset" and related attributes
Michael Sweet msweet at apple.com 
Thu May 9 21:22:15 UTC 2019

All,

As previous noted, PWG 5100.1: IPP Finishings v2.1 (FIN) and PWG 5100.13: IPP
Job and Printer Extensions - Set 3 (JPS3) both define an attribute that
specifies the number of pages in a document that constitute a set for finishing
(stapling, binding, etc.)

The "job-pages-per-set (integer(1:MAX))" attribute (5100.1) has broad adoption
and clearly-defined semantics for shipping printers.  The "pages-per-subset
(1setOf integer(1:MAX))" attribute (5100.13) has no known shipping
implementations and interacts with the "multiple-document-handling" attribute
and multiple-document jobs.

During today's IPP workgroup conference call, the consensus was to deprecate
"pages-per-subset" since the "job-pages-per-subset" provides the necessary
functionality and is implemented by printers that need it.

Please provide feedback ASAP if you disagree with this decision.  The plan is to
publish this deprecation on the IANA IPP registry after the May 23, 2019 IPP
workgroup conference call.

.......

Registration template:


Job Template attributes:                                    Reference
--------------------------                                  ---------
pages-per-subset(deprecated) (1setOf integer(1:MAX))        [PWG5100.13]

Printer Description attributes: Reference
------------------------------  ---------
pages-per-subset-supported(deprecated) (boolean)            [PWG5100.13]

_________________________________________________________
Michael Sweet, Senior Printing System Engineer