IPP Mail Archive: IPP> SLP "printer" template - DUPLEX

IPP Mail Archive: IPP> SLP "printer" template - DUPLEX

IPP> SLP "printer" template - DUPLEX

Harry Lewis (harryl@us.ibm.com)
Fri, 30 Oct 1998 16:11:28 -0500

Thanks to Ira for forwarding the revised text for the SLP printer templ=
ate to
the PWG. In my review, I have the following comment regarding the defin=
ition of
duplex-mode.

Throughout the industry (and time)... there have been several different=
uses of
terminology to describe two-sided printing. Some of the terms I have fr=
equently
encountered are:

Simplex, Rotate-duplex, Tumble-duplex
Simplex, Duplex, Tumble
Simplex, longEdgeBindingDuplex, shortEdgeBindingDuplex
One-sided, Two-sided-long-edge, Two-sided-short-edge

The later was agreed upon with creation of IPP and the Job MIB and is c=
losely
correlated with the Printer MIB (RFC1759) which is the 3rd in my list, =
above.
While I respect the fact that the Salutation consortium is also an open=
ly
conducted standards organization and they were first to submit a printe=
r
template proposal for SLP, I recommend keeping the terminology within I=
ETF
drafts as consistent as possible. Therefore I propose changing the synt=
ax for
SLP printer template attribute from "duplex-mode" (simplex, duplex, tum=
ble) to
"sides" (one-sided, two-sided-long-edge, two-sided-short-edge).

I also recommend pointing out the exact correlation to the Salutation
terminology in comments associated with this attribute.

While I am not (yet) a SLP expert, I believe the "entry" would look as =
follows

sides =3D STRING L M O
one-sided
# IPP 'sides'
# (Compare with Salutation 'duplex-mode')
# The number of impression sides (one or two) and the
# two-sided impression rotations supported by this printer.
# Salutation 'simplex' is equivalent to 'one-sided'.
# Salutation 'duplex-mode' is equivalent to 'two-sided-long-edge'.
# Salutation 'tumble' is equivalent to 'two-sided-short-edge'.
one-sided, two-sided-long-edge, two-sided-short-edge

Harry Lewis - IBM Printing Systems
harryl@us.ibm.com
=