attachment

<div dir="ltr"><div><div><div><div>Hi Mike and Pete,<br><br></div>What about a simple TXT record discovery attribute for Push capability that&#39;s boolean?<br></div>Since a bunch of URI schemes are conditionally mandatory anyway, that gets 90% of<br>

the discovery need.<br><br></div>Cheers,<br></div>- Ira<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 &amp; 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&nbsp; 579 Park Place&nbsp; Saline, MI&nbsp; 48176&nbsp; 734-944-0094<br>Summer&nbsp; PO Box 221&nbsp; Grand Marais, MI 49839&nbsp; 906-494-2434<br><br><div style="display:inline">

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<br><br><div class="gmail_quote">On Mon, Feb 10, 2014 at 3:29 PM, Michael Sweet <span dir="ltr">&lt;<a href="mailto:msweet@apple.com" target="_blank">msweet@apple.com</a>&gt;</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">Pete,<div><br></div><div>I&#39;m not sure it makes much sense to include the push schemes in the TXT record since you need to load the hardcopy to be scanned on a particular device - probably better to browse for _ipp._tcp,_scan and then do a Get-Printer-Attributes to get the values you are looking for, *if* you really wanted an application that could help a user find a MFD with push scan capabilities.</div>

<div><br></div><div>The more likely use case is that you browse to find the MFD you just loaded the hardcopy in, send an Identify-Printer to confirm, and then send a Get-Printer-Attributes to get the MFD capabilities (which might include whether push scan to an email address is possible, for example). &nbsp;For that you don&#39;t need the push schemes in the TXT record...</div>

<div><div class="h5"><div><br></div><div><br><div><div>On Feb 10, 2014, at 3:13 PM, Zehler, Peter &lt;<a href="mailto:Peter.Zehler@xerox.com" target="_blank">Peter.Zehler@xerox.com</a>&gt; wrote:</div><br><blockquote type="cite">







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<div><p class="MsoNormal"><span style="color:#1f497d">Mike,<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">&nbsp;</span></p><p class="MsoNormal"><span style="color:#1f497d">That works for me and for some internal requests.&nbsp; The additional request for having Push optional would be to include a discovery attribute to locate Scanners with push capability.&nbsp;
<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">&nbsp;</span></p><p class="MsoNormal"><span style="color:#1f497d">What do you think about a comma separated list of push URL schemes and an empty list indicates a Pull only scanner?<u></u><u></u></span></p>

<p class="MsoNormal"><span style="color:#1f497d">&nbsp;</span></p><p class="MsoNormal"><span style="color:#1f497d">&nbsp;</span></p>
<div><p class="MsoNormal"><span style="font-family:&quot;Impact&quot;,&quot;sans-serif&quot;;color:navy">Peter Zehler</span><span style="color:#1f497d"><br>
<br>
</span><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:navy">Xerox Research Center Webster<br>
</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Email:
<a href="mailto:Peter.Zehler@Xerox.com" target="_blank">Peter.Zehler@Xerox.com</a></span><span style="color:#1f497d"><br>
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</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">US Mail: Peter Zehler</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Xerox Corp.</span><span style="color:#1f497d"><br>
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</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Webster NY, 14580-9701</span><span style="color:#1f497d">
</span><span style="font-size:12.0pt;font-family:&quot;Times New Roman&quot;,&quot;serif&quot;;color:#1f497d"><u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="color:#1f497d">&nbsp;</span></p>
<div>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> <a href="mailto:ipp-bounces@pwg.org" target="_blank">ipp-bounces@pwg.org</a> [<a href="mailto:ipp-bounces@pwg.org" target="_blank">mailto:ipp-bounces@pwg.org</a>]
<b>On Behalf Of </b>Michael Sweet<br>
<b>Sent:</b> Monday, February 10, 2014 3:07 PM<br>
<b>To:</b> Zehler, Peter<br>
<b>Cc:</b> <a href="mailto:IPP@pwg.org" target="_blank">IPP@pwg.org</a><br>
<b>Subject:</b> Re: [IPP] IPP Scan - Is Push scanning mandatory?<u></u><u></u></span></p>
</div>
</div><p class="MsoNormal"><u></u>&nbsp;<u></u></p><p class="MsoNormal">Pete,<u></u><u></u></p>
<div><p class="MsoNormal"><u></u>&nbsp;<u></u></p>
</div>
<div><p class="MsoNormal">I thought we were requiring pull scan and recommending push scan because low-end devices couldn&#39;t retry a push automatically. Any push-related attributes would be conditionally required if the service supports push. &nbsp;And any retry-related
 attributes would be conditionally required for services that do output spooling.<u></u><u></u></p>
</div>
<div><p class="MsoNormal"><u></u>&nbsp;<u></u></p>
</div>
<div><p class="MsoNormal"><u></u>&nbsp;<u></u></p>
<div>
<div><p class="MsoNormal">On Feb 10, 2014, at 2:59 PM, Zehler, Peter &lt;<a href="mailto:Peter.Zehler@xerox.com" target="_blank">Peter.Zehler@xerox.com</a>&gt; wrote:<u></u><u></u></p>
</div><p class="MsoNormal"><br>
<br>
<u></u><u></u></p>
<div><p class="MsoNormal">All,<u></u><u></u></p><p class="MsoNormal">&nbsp;<u></u><u></u></p><p class="MsoNormal">I have conflicting notes.&nbsp; I have some Push scan related attributes marked as conditionally mandatory while Pull and Push scan are listed as required.<u></u><u></u></p>

<p class="MsoNormal">&nbsp;<u></u><u></u></p><p class="MsoNormal">My opinion is that Push and Pull scanning are mandated and therefore the Push related attributes are also mandatory.&nbsp; For Push scanning the &ldquo;http&rdquo;, &ldquo;https&rdquo;, &ldquo;ftp&rdquo; and&nbsp; &ldquo;ftps URI schemes MUST be supported.<u></u><u></u></p>

<p class="MsoNormal">&nbsp;<u></u><u></u></p><p class="MsoNormal">Any objections?<u></u><u></u></p><p class="MsoNormal">&nbsp;<u></u><u></u></p><p class="MsoNormal"><span style="font-family:&quot;Impact&quot;,&quot;sans-serif&quot;;color:navy">Peter Zehler</span><span style="color:#1f497d"><br>


<br>
</span><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:navy">Xerox Research Center Webster<br>
</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;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:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Office: <a href="tel:%2B1%20%28585%29%20265-8755" value="+15852658755" target="_blank">+1 (585) 265-8755</a></span><u></u><u></u></p>

<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Mobile: <a href="tel:%2B1%20%28585%29%20329-9508" value="+15853299508" target="_blank">+1 (585) 329-9508</a></span><span style="color:#1f497d"><br>


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</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">US Mail: Peter Zehler</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Xerox Corp.</span><span style="color:#1f497d"><br>
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</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">M/S 128-25E</span><span style="color:#1f497d"><br>
</span><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy">Webster NY, 14580-9701</span><span style="color:#1f497d">
</span><u></u><u></u></p><p class="MsoNormal">&nbsp;<u></u><u></u></p>
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<div><p class="MsoNormal"><span style="font-size:12pt;font-family:&#39;Andale Mono&#39;,serif">_________________________________________________________<br>
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</blockquote></div><br><div>
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_________________________________________________________<br>Michael Sweet, Senior Printing System&nbsp;Engineer, PWG Chair</div></span></span>
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