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<p class="MsoNormal"><span style="font-size:11.0pt">All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If "job-accounting-user-id" and "job-account-id" are added to IPP "printer-mandatory-job-attributes" in an IPP Get-Printer-Attributes response, as specified by MOPRIA Alliance Print Specification 2.1 section
4.18.2.d., the Apple Mac AirPrint driver ceases to print. In other words, because Apple does not properly support this functionality, and it in fact breaks Mac printing (the print job in Mac OS Mojave is never sent - I have not tested with Catalina though),
this MOPRIA IPP requirement is incompatible with AirPrint, and as a result any printer vendor implementing support for this in MOPRIA will not be able to concurrently support AirPrint. Also, it is my understanding Apple's AirPrint currently does not support
job-accounting-user-id and I know of no plan for it to be supported in the future.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I believe there needs to be some agreement across both MOPRIA Alliance and Apple/AirPrint which includes PWG working group to try and address this issue. The current MOPRIA requirement is a "MAY", which allows
vendors to just skip this MOPRIA requirement if they wish to work with both types of clients. But if in the future there is a desire to make this requirement a "MUST" (for printer vendors whose systems actually require these attributes to be sent in an IPP
Print-Job or Create-Job request when accounting is enabled), then this needs to be addressed.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Also not addressed is the fact that some accounting implementations only require job-accounting-user-id as mandatory, as all accounting users in these implementations can have a default job-account-id assigned
to all their jobs, which means job-accounting-user-id would be present in printer-mandatory-job-attributes but job-account-id would not. In this instance, job-account-id could possibly be included in printer-suggested-job-attributes, in the event the user
wants to specify an alternate job-account-id other than their default.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Chris<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Christopher Rizzo<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Xerox Corporation<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">GDG/Discovery/Advance Technology<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">26600 SW Parkway Ave.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Wilsonville, OR 97070-9251<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Phone: (585) 314-6936<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Email: Christopher.Rizzo@xerox.com<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">"The realization came over me with full force that a good part of the remainder of my life was going to be spent in finding errors in my own programs."<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Maurice Wilkes, <i>
Memoirs of a Computer Pioneer</i></span><o:p></o:p></p>
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