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<div class=Section1>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'>Thanks for explanation, it helps.
Unless, I missed it, there should a similar explanation in the specification;
so that people writing clients will understand the rational when using the preferred
capability.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'>In your first statement, you state that
the “printer could” versus the “printer will”;
therefore, I assume the “”use”” of “preferred”
is optional and that the client could return an invalid job for your
example. So, is the User in control of whether they want a
printer to use “preferred” value. I assume the Print Client
could respond to difference in the sent and returned job ticket in various ways
(and mostly likely should). Can the Print Client tell the printer not to
use preferred values even if the printer supports preferred values?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'>Glen<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Cambria><span style='font-size:
12.0pt;font-family:Cambria;color:blue'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Michael Sweet
[mailto:msweet@apple.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, November 01, 2011
2:38 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Petrie, Glen<br>
<b><span style='font-weight:bold'>Cc:</span></b> ipp@pwg.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [IPP] Please explain
the use of "preferred" attributes</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Glen,<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>The semantic definition is that the Printer may return substituted
values for unsupported attributes in a Create-Job, Print-Job, Print-URI, or
Validate-Job response. That is, if you specify duplex printing on transparency
media, the printer could return sides-preferred with "one-sided" or
media-col-preferred with a media-type other than transparency to tell the
client that it will print the job differently than requested.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>In the case of attributes like "copies", a printer may
normally support up to (for example) 999 copies for uncollated output, but may
only support 99 copies for collated output. Or the printer may not be
able to support copies for a given document or document format.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>In short, previously all the client has known is that particular
attributes or values were not supported (or conflicted), but not what
attributes would be used by the printer instead (typically the default values).<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<div>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Nov 1, 2011, at 12:37 PM, Petrie, Glen wrote:<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br>
<o:p></o:p></span></font></p>
<span style='orphans: 2;text-align:-webkit-auto;widows: 2;-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:
0px'>
<div link=blue vlink=purple>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'>Discussion on wd-ippjobprinterext3v10-20111013<u1:p></u1:p></span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'><u1:p> </u1:p></span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'>In Section 6.4 I don’t understand the idea of
“… the Printer would prefer to use”. Does this the
Printer will override Job Ticket values? While, the printer has
limitation or constraints which are reported in the capability information;
what does it mean when the printer has “copies-preferred” (section
5.3.2) – does this mean the User wants 3 copies but the Printer prefers
to only print 2 !!! Very Strange. There could be a concept of
“recommended” attributes that would apply to a very small set of
attributes (copies is not one of them) and would be presented to the User in
such a way as to identify it as “recommended”.<u1:p></u1:p></span></font><o:p></o:p></p>
</div>
<div style='margin-left:.5in'>
<p class=MsoNormal style='text-indent:-.25in'><font size=3 face=Wingdings><span
style='font-size:12.0pt;font-family:Wingdings'>n</span></font><font size=1><span
style='font-size:7.0pt'> <span
class=apple-converted-space> </span></span></font><font face=Cambria><span
style='font-family:Cambria'>The same comment applies to almost all the other
“preferred” attributes.<u1:p></u1:p></span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'><u1:p> </u1:p></span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'>Glen<u1:p></u1:p></span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'><u1:p> </u1:p></span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=Cambria><span style='font-size:12.0pt;
font-family:Cambria'><u1:p> </u1:p></span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
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<p class=MsoNormal><font size=4 color=black face="Andale Mono"><span
style='font-size:13.5pt;font-family:"Andale Mono";color:black'>_________________________________________________________<br>
Michael Sweet, Senior Printing System Engineer, PWG Chair<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
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