<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Mar 20, 2011, at 9:42 AM, Ira McDonald wrote:</div><blockquote type="cite">Hi Mike,<br><br>I like this new attribute, but...<br><br>I think that the remediation info belongs locally in existing<br>"printer-state-message" and "printer-alert-description"<br>(mapped from Printer MIB remediation info), i.e., can be<br>
found without fetching an external web page.<br></blockquote><div><br></div>The simple instructions ("replace cyan ink") maybe, but the idea is that the printer can host a page that provides pictures, instructions, buttons to put the printer in "change ink mode" (many consumer inkjets have no physical buttons these days), print self-test pages, do head alignment, etc.</div><div><br></div><div>(This is traditionally stuff that is provided using vendor-specific software that is not easy to map to IPP operations and attributes. On the Mac we call these Printer Utility programs...)</div><div><br><blockquote type="cite">While the how-to-order info may be appropriate in this new <br>attribute, though I have seen it put in "printer-more-info"<br>web page.<br></blockquote><div><br></div>The idea is that this would be specific to supply information and management and not the printer as a whole. Also, printer-more-info often points to the vendor's product web page and not the printer itself.</div><div><br><blockquote type="cite">Or was your intent that this web page was served by the<br>
printer itself?</blockquote><div><br></div>Yes, otherwise it would be useless for many of our use cases.</div><div><br><blockquote type="cite">I think that implementation would introduce <br>freshness problems, i.e., distributors for resupply change <br>over time.<br></blockquote></div><div><br></div>Redirect pages are cheap (and probably necessary to handle regional differences), and I would expect vendors to direct customers to their own online stores and not to some third party anyways.<div><br></div><div>In any case, the primary purpose is to handle stuff on the printer that is normally done with vendor-specific UI that cannot be easily mapped to IPP attributes or operations. Perhaps a better description would be:</div><div><br></div><div> printer-supply-info-uri (uri)<br><br> The RECOMMENDED "printer-supply-info-uri" Printer attribute provides a URI</div><div> referring to a human-readable web page that provides controls for managing</div><div> the Printer and its supplies, e.g., supply replacement, head alignment,</div><div> self-test pages, and so forth. The web page MAY also provide supply part</div><div> numbers, links for ordering supplies, and detailed instructions for</div><div> replacing supplies.</div><div><div></div></div><div><br></div><div> The URI MUST use the “http” or “https” scheme with the printer as the</div><div> destination host - external URIs are not allowed.</div><div><br></div><div><span class="Apple-style-span" style="font-family: Helvetica; ">__________________________________________________</span></div><div><div><div style="font-family: Helvetica; ">Michael Sweet, Senior Printing System Engineer, PWG Chair<br></div>
<br />This message has been scanned for viruses and
<br />dangerous content by
<a href="http://www.mailscanner.info/"><b>MailScanner</b></a>, and is
<br />believed to be clean.