attachment
<div dir="ltr"><div><div><div><div><div><div><div><div><div><div><div>Hi Soma,<br><br>Thanks for your careful reading of these IPP specs.<br><br></div>We discussed this comment during the Thursday IPP WG session <br></div>
at the PWG F2F meeting last week, when looking at IPP Scan with<br></div><div>Pete Zehler.<br></div><div><br></div>The IPP F2F minutes state that this issue should be resolved on the <br>IPP mailing list, but there was unanimous consensus in the meeting:<br>
</div><div><br></div>(1) IPP FaxOut - these date-time attributes should remain REQUIRED<br></div>(because they satisfy regulatory requirements for a Fax service).<br></div><br>(2) IPP Scan - these date-time attributes should be changed to either<br>
</div>RECOMMENDED (i.e., best practice) or simply OPTIONAL.<br><br></div><div>Please note that in IPP Everywhere (PWG 5100.14), the attributes<br></div><div>printer-config-change-date-time and printer-state-change-date-time<br>
</div><div>attributes are REQUIRED in Table 6 for conformance (see notes 2<br></div><div>and 3 below the table).<br></div><div><br></div><div>Obviously, the underlying printer-date-time attribute should have<br></div><div>
the same conformance level as the change-xxx attributes in IPP <br>Everywhere, IPP FaxOut, and IPP Scan. This appears to me to<br>be an oversight in these specs.<br><br></div></div>Please comment further on this thread, to clarify your thoughts.<br>
<br></div>Cheers,<br></div>- Ira (co-chair of IPP WG)<br><br></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr">Ira McDonald (Musician / Software Architect)<br>Co-Chair - TCG Trusted Mobility Solutions WG<br>
Chair - Linux Foundation Open Printing WG<br>Secretary - IEEE-ISTO Printer Working Group<br>Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG<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<br><br><div style="display:inline">
</div><div style="display:inline"></div><div style="display:inline"></div><div></div><div></div><div></div><div></div></div></div>
<br><br><div class="gmail_quote">On Tue, May 13, 2014 at 10:34 PM, Soma Meiyappan <span dir="ltr"><<a href="mailto:Soma.Meiyappan@conexant.com" target="_blank">Soma.Meiyappan@conexant.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US">
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<p class="MsoNormal"><span style="color:#1f497d">Hi Pete et al,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">I have a concern about<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p><span style="font-size:11.0pt">printer-config-change-date-time
<u></u><u></u></span></p>
<p><span style="font-size:11.0pt">printer-state-change-date-time <u></u>
<u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">These attributes figure in the REQUIRED table in section 4.3. The above attributes require the scan device to have a notion of wall clock time (whether it is accurate or not to the global wall clock time). To
increase the chances of making use of that effectively & correctly, all clients would be required to use this somehow in reference to printer-current-time and not to the wall-clock time that the client might know through other sources. That makes me wonder
if it is sufficient to have printer-state-change-time and printer-config-change-time as required and make xxxx-date-time as optional.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">I have a similar question on FaxOut; but at least on FaxOut, the devices are expected to have a notion of wall-clock time although the point about how clients should use that information with reference to printer-current-time
still seems applicable.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Somasundaram.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> <a href="mailto:ipp-bounces@pwg.org" target="_blank">ipp-bounces@pwg.org</a> [mailto:<a href="mailto:ipp-bounces@pwg.org" target="_blank">ipp-bounces@pwg.org</a>]
<b>On Behalf Of </b>Zehler, Peter<br>
<b>Sent:</b> Friday, May 09, 2014 10:35 PM<br>
<b>To:</b> <a href="mailto:IPP@pwg.org" target="_blank">IPP@pwg.org</a><br>
<b>Subject:</b> [IPP] WG Last Call of IPP Scan Service specification<u></u><u></u></p>
</div>
</div><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">All,<u></u><u></u></p>
<p class="MsoNormal">This message initiates the IPP Working Group last call of the IPP Scan Service<span style="color:#1f497d">
</span>specification updated per prototype experience and subsequent discussions.
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><a href="ftp://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippscan10-20140509.pdf" target="_blank">ftp://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippscan10-20140509.pdf</a> <u></u><u></u></p>
<p class="MsoNormal"><a href="http://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippscan10-20140509.pdf" target="_blank">http://ftp.pwg.org/pub/pwg/ipp/wd/wd-ippscan10-20140509.pdf</a><span style="color:#1f497d">
</span> <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Please send all feedback to the IPP mailing list (reply-all works fine for this) and it will be collected and processed as quickly as possible.
<u></u><u></u></p>
<p class="MsoNormal">Our intent is to move IPP Scan Service<span style="color:#1f497d">
</span>to PWG Formal Vote before the August 2014 F2F.<span style="color:#1f497d"><u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span style="font-family:"Impact","sans-serif";color:navy">Peter Zehler</span><span style="color:#1f497d"><br>
<br>
</span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:navy">Xerox Research Center Webster<br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Email:
<a href="mailto:Peter.Zehler@Xerox.com" target="_blank">Peter.Zehler@Xerox.com</a></span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;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="color:#1f497d"><br>
</span><span style="font-size:10.0pt;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="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">US Mail: Peter Zehler</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Xerox Corp.</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">800 Phillips Rd.</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">M/S 128-25E</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Webster NY, 14580-9701</span><span style="color:#1f497d">
</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#1f497d"><u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div></div></div>
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