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<div dir="ltr"><div>Hi Mike,</div><div><br></div><div>YES - a good and needed addition for fidelity to the Client's intent.</div><div><br></div><div>Cheers,</div><div>- Ira</div><div><br></div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Ira McDonald (Musician / Software Architect)<br>Co-Chair - TCG Trusted Mobility Solutions WG</div><div>Co-Chair - TCG Metadata Access Protocol SG<br></div><div dir="ltr">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>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></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 11, 2019 at 11:50 AM Michael Sweet via ipp <<a href="mailto:ipp@pwg.org">ipp@pwg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">All,<br>
<br>
A recent issue on the Javascript IPP project (<a href="https://github.com/williamkapke/ipp/issues/72" rel="noreferrer" target="_blank">https://github.com/williamkapke/ipp/issues/72</a>) highlights an issue with the "page-ranges (1setOf rangeOfInteger)" Job Template attribute, namely that a Client cannot discover how many ranges a printer supports. The existing "page-ranges-supported (boolean)" attribute only specifies whether the "page-ranges" Job Template attribute is supported and not the maximum number of values a Printer supports. Moreover, existing Printers seem to ignore extra values without reporting this in the unsupported attributes group of the Create-Job/Print-Job/Print-URI/Validate-Job response, so from the perspective of the Client nothing has gone wrong.<br>
<br>
For other attributes we have a "max-xxx" Printer Description attribute that tells the Client how many values can be specified, e.g., "max-stitching-locations-supported" and "max-materials-col-supported". I therefore propose to register a new "max-page-ranges-supported (integer(1:MAX))" Printer Description attribute that a Printer can return to specify the number of page ranges the Printer supports.<br>
<br>
Here is the registration template:<br>
<br>
<br>
Printer Description attributes: Reference<br>
------------------------------ ---------<br>
max-page-ranges-supported (integer(1:MAX)) [IPP20190711]<br>
<br>
<br>
________________________<br>
Michael Sweet<br>
<br>
<br>
<br>
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</blockquote></div>