attachment-0001
Hi Mike,<br><br>Thanks - I agree w/ Pete about the advantages of<br>option 2 - and this is a more backward compatible<br>solution than actually deleting a previously registered<br>(and apparently implemented) IPP attribute.<br>
<br>The 'no-value' approach to special "xxx-default"<br>attributes is elegant.<br><br>Cheers,<br>- Ira<br><br><br><br>Ira McDonald (Musician / Software Architect)<br>Chair - Linux Foundation Open Printing WG<br>
Secretary - IEEE-ISTO Printer Working Group<br>Co-Chair - IEEE-ISTO PWG IPP WG<br>Co-Chair - TCG Trusted Mobility Solutions WG<br>Chair - TCG Embedded Systems Hardcopy SG<br>IETF Designated Expert - IPP & Printer MIB<br>
Blue Roof Music/High North Inc<br><a style="color:rgb(51,51,255)" href="http://sites.google.com/site/blueroofmusic" target="_blank">http://sites.google.com/site/blueroofmusic</a><br><a style="color:rgb(102,0,204)" href="http://sites.google.com/site/highnorthinc" target="_blank">http://sites.google.com/site/highnorthinc</a><br>
mailto:<a href="mailto:blueroofmusic@gmail.com" target="_blank">blueroofmusic@gmail.com</a><br>Winter 579 Park Place Saline, MI 48176 734-944-0094<br>Summer PO Box 221 Grand Marais, MI 49839 906-494-2434<div style="display:inline">
</div><div style="display:inline"></div><div style="display:inline"></div><div></div><div></div><div></div><div></div><br>
<br><br><div class="gmail_quote">On Tue, Jan 24, 2012 at 11:52 AM, Michael Sweet <span dir="ltr"><<a href="mailto:msweet@apple.com">msweet@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">OK, I'm convinced. I'll add "no-value" to this one and any others like it where it would not always make sense to force a default value.<div><br><div><br><div><div><div class="h5">
<div>On Jan 24, 2012, at 4:33 AM, Zehler, Peter wrote:</div><br></div></div><blockquote type="cite"><div link="blue" vlink="purple" style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:normal;text-transform:none;font-size:medium;white-space:normal;font-family:'Andale Mono';word-spacing:0px" lang="EN-US">
<div><div class="h5"><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Mike,<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">I prefer option #2. One of my reason is that it allows the operator to set policy for underspecified jobs on the printer. (If the client is not being careful, then the printer will.) It is a very handy feature in production printing.<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Pete<u></u><u></u></span></div>
<div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Impact,sans-serif;color:navy">Peter Zehler</span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
<br></span><span style="font-size:10pt;font-family:Tahoma,sans-serif;color:navy">Xerox Research Center Webster<br></span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">Email:<span> </span><a href="mailto:Peter.Zehler@Xerox.com" style="color:purple;text-decoration:underline" target="_blank">Peter.Zehler@Xerox.com</a></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
</span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">Voice: <a href="tel:%28585%29%20265-8755" value="+15852658755" target="_blank">(585) 265-8755</a></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
</span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">FAX: <a href="tel:%28585%29%20265-7441" value="+15852657441" target="_blank">(585) 265-7441</a></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
</span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">US Mail: Peter Zehler</span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br></span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">Xerox Corp.</span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
</span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">800 Phillips Rd.</span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br></span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">M/S 128-25E</span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><br>
</span><span style="font-size:10pt;font-family:Arial,sans-serif;color:navy">Webster NY, 14580-9701</span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"></span><span style="color:rgb(31,73,125)"><u></u><u></u></span></div>
</div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div><div style="border-right-style:none;border-bottom-style:none;border-left-style:none;border-width:initial;border-color:initial;border-top-style:solid;border-top-color:rgb(181,196,223);border-top-width:1pt;padding-top:3pt;padding-right:0in;padding-bottom:0in;padding-left:0in">
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif"><span> </span><a href="mailto:ipp-bounces@pwg.org" style="color:purple;text-decoration:underline" target="_blank">ipp-bounces@pwg.org</a><span> </span>[mailto:<a href="mailto:ipp-bounces@pwg.org" target="_blank">ipp-bounces@pwg.org</a>]<span> </span><b>On Behalf Of<span> </span></b>Paul Tykodi<br>
<b>Sent:</b><span> </span>Tuesday, January 24, 2012 6:11 AM<br><b>To:</b><span> </span><a href="mailto:ipp@pwg.org" style="color:purple;text-decoration:underline" target="_blank">ipp@pwg.org</a><br><b>Subject:</b><span> </span>RE: [IPP] media-input-tray-check-default<u></u><u></u></span></div>
</div></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Hi Mike,<u></u><u></u></span></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">For production printing, I have found during my career that it is critical to have automatic checks and balances within the job submission workflow so that a very large job (with a significant cost of production) is not released such that it will be printed on incorrect media and thus be a total loss (i.e. must be destroyed and cannot be distributed – job must be run again). The AFP Consortium has the same type of intelligence in their Intelligent Printer Data Stream specification as we have in IPP.<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">I think it is possible that some vendors may have interpreted the description in the specification to mean that the default value should refer to the function being enabled or disabled. If it is enabled, it then interacts with the media in the job ticket I therefore prefer option #2 to resolve this issue.<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Best Regards,<u></u><u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">/Paul<u></u><u></u></span></div>
<div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">--</span><span style="color:rgb(31,73,125)"><u></u><u></u></span></div>
</div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">Paul Tykodi<br>
Principal Consultant<br>TCS - Tykodi Consulting Services LLC<br><br>Tel/Fax: <a href="tel:603-343-1820" value="+16033431820" target="_blank">603-343-1820</a><br>Mobile: <a href="tel:603-866-0712" value="+16038660712" target="_blank">603-866-0712</a><br>
E-mail: <span> </span><a href="mailto:ptykodi@tykodi.com" style="color:purple;text-decoration:underline" target="_blank">ptykodi@tykodi.com</a></span><span style="font-size:100pt;font-family:'Courier New';color:rgb(31,73,125)"><br>
</span><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(31,73,125)">WWW: <span> </span></span><span style="font-size:10pt;font-family:'Courier New';color:rgb(31,73,125)"><a href="http://www.tykodi.com/" style="color:purple;text-decoration:underline" target="_blank"><span style="font-family:Arial,sans-serif">http://www.tykodi.com</span></a></span><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u></u><u></u></span></div>
<div><div style="border-right-style:none;border-bottom-style:none;border-left-style:none;border-width:initial;border-color:initial;border-top-style:solid;border-top-color:rgb(181,196,223);border-top-width:1pt;padding-top:3pt;padding-right:0in;padding-bottom:0in;padding-left:0in">
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif"><span> </span><a href="mailto:ipp-bounces@pwg.org" style="color:purple;text-decoration:underline" target="_blank">ipp-bounces@pwg.org</a><span> </span><a href="mailto:[mailto:ipp-bounces@pwg.org]" style="color:purple;text-decoration:underline" target="_blank">[mailto:ipp-bounces@pwg.org]</a><span> </span><b>On Behalf Of<span> </span></b>Michael Sweet<br>
<b>Sent:</b><span> </span>Monday, January 23, 2012 6:14 PM<br><b>To:</b><span> </span><a href="mailto:ipp@pwg.org" style="color:purple;text-decoration:underline" target="_blank">ipp@pwg.org</a><br><b>Subject:</b><span> </span>[IPP] media-input-tray-check-default<u></u><u></u></span></div>
</div></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
All,<u></u><u></u></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
I am going through yet another round of updates to the IANA registry (this time for sure! :), and noticed that I still have the media-input-tray-check-default attribute tagged as "under review". I would like to resolve this before we submit our next round of updates to the registry.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
BACKGROUND<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
PWG 5100.3 (Production Printing Set 1) defines the media-input-tray-check Job Template attribute thusly:<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<u></u> <u></u></div></div><blockquote style="margin-left:30pt;margin-top:5pt;margin-right:0in;margin-bottom:5pt"><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
The “media-input-tray-check” Job Template attribute indicates that the Printer MUST check that the characteristics of the media in the identified input tray are the same as characteristics of the media identified by the Job's "media" Job Template attribute or matched (see section 3.13) by the Job's "media- col" Job Template attribute. The keyword values are the same input tray keyword values as are defined for the "media" Job Template attribute (see section 6.3 in this document and [RFC2911] Appendix C), i.e., 'top', 'middle', 'bottom', etc.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
Independent of the "ipp-attributes-fidelity" operation attribute supplied by the client, if the characteristics differ, the Printer adds the ‘resources-are-not-ready’ value (see section 6.1) to the job's "job-state-reasons" attribute and MAY either (1) put the job into the ‘pending-held’ state or (2) start to process the job normally, but immediately stop the job (“job-state” = ‘processing-stopped’) and the Printer (“printer-state” = ‘stopped’). In either implementation, the operator can change the media in the input tray to agree with the job or can modify the job’s “media” or “media-col” attributes to agree with the input tray, depending on policy.<u></u><u></u></div>
</div></blockquote><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
Table 1 (at the beginning of section 3) defines media-input-tray-check-default and -supported.<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">The issue is that there should not be a default media-input-tray-check value; like some other Job Template attributes (e.g. overrides), it does not make sense to have a default value for this particular attribute since it interacts with the media in the job ticket.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
There are two ways to resolve this issue:<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">1. Drop media-input-tray-check-default from the registry and post an errata for 5100.3 removing the media-input-tray-check-default attribute from Table 1.<u></u><u></u></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
2. Update the definition of media-input-tray-check-default to include the "no-value" out-of-band value.<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">I prefer option #1.<u></u><u></u></div></div><div>
<div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
Comments?<u></u><u></u></div></div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"> <u></u><u></u></div><div><div><div><div>
<div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:13.5pt;font-family:Monaco,serif">________________________________________________________________________<u></u><u></u></span></div>
</div><div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:13.5pt;font-family:Monaco,serif">Michael Sweet, Senior Printing System Engineer, PWG Chair<u></u><u></u></span></div>
</div></div></div></div></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div></div><div style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
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__________________________________________________</div><div>Michael Sweet, Senior Printing System Engineer, PWG Chair<br></div></span>
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