[IPP] Impressions vs. images for IPP FaxOut service

[IPP] Impressions vs. images for IPP FaxOut service

Paul Tykodi ptykodi at tykodi.com
Wed Nov 2 08:11:00 UTC 2011


Hi Mike,

 

I agree with Ira's suggestion as a good way to move forward.

 

Best Regards,

 

/Paul

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Paul Tykodi
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From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of Ira
McDonald
Sent: Tuesday, November 01, 2011 8:57 PM
To: Michael Sweet; Ira McDonald
Cc: ipp at pwg.org
Subject: Re: [IPP] Impressions vs. images for IPP FaxOut service

 

Hi Mike,

My two cents:

Define new job-images[-completed] attributes, to align
w/ SM.

Also, Copy Service (and possibly other future services)
have both images (input) and impressions (output) work
counters.

Of course, Scan/FaxIn/etc. need images work counters.

Cheers,
- Ira,

Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Secretary - IEEE-ISTO Printer Working Group
Co-Chair - IEEE-ISTO PWG IPP WG
Chair - TCG Embedded Systems Hardcopy SG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music/High North Inc
 <http://sites.google.com/site/blueroofmusic>
http://sites.google.com/site/blueroofmusic
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http://sites.google.com/site/highnorthinc
mailto:blueroofmusic at gmail.com
Winter  579 Park Place  Saline, MI  48176  734-944-0094
Summer  PO Box 221  Grand Marais, MI 49839  906-494-2434





On Tue, Nov 1, 2011 at 8:20 PM, Michael Sweet <msweet at apple.com> wrote:

All,

 

As I continue to sift through the minutes from the October 2011 F2F, I saw
that we decided to normatively reference the 5106.1 definition of
impressions for IPP and the Semantic Model going forward.

 

However, for FaxOut (and potentially other IPP service bindings, should we
do them) the existing job-impressions/-completed attributes would not apply.
Section 7.1 of 5106.1 has the following to say about impressions:

 

The relationships in this section are common to all services that contain
the associated counters. For example the relationship for Impression applies
to Copy, EmailIn, FaxIn, NetworkFaxIn, Print and SystemTotals because
"impressions" is applicable to these services The relationship for
Impression does not apply to EmailOut, FaxOut, NetworkFaxOut, Scan or
Transform because "impressions" is not applicable to these services.

 

Presumably we should report and count images instead, however IPP has never
defined image counter attributes (e.g. there are no job-images/-completed
attributes).

 

Should I:

 

1. Add new job-images and job-images-completed Job Description attributes
for FaxOut. This would preserve a closer 1-to-1 mapping with the Semantic
Model.

 

or:

 

2. Redefine job-impressions and job-impressions-completed to be images for
FaxOut and other image-based services. This would make FaxOut closer to
Print from a Client perspective, and existing code to report progress or do
accounting would work without changes.

 

Thoughts?

 

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair

 


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