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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=blue><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Glen,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>There are several print devices where quality settings are resolution independent – fuser temperature, speed at which paper is transported, etc.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If I specify a line or pattern in a raster format, I may need to specify the resolution so that the printed output matches the intent, such as 300 dots equals 1 inch.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Especially important in barcodes, drawing objects, etc.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Larry<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></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:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> mfd-bounces@pwg.org [mailto:mfd-bounces@pwg.org] <b>On Behalf Of </b>Petrie, Glen<br><b>Sent:</b> Wednesday, February 01, 2012 3:45 PM<br><b>To:</b> Michael Sweet<br><b>Cc:</b> mfd@pwg.org<br><b>Subject:</b> RE: [MFD] Question on Resolution Versus Qaulity<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Conceptually there is no reason a printer could not support a draft mode for multiple resolutions (and this is in fact the case in CUPS/Mac OS X), so preventing both from being specified will do a disservice to the user and printer/driver.<o:p></o:p></p></div><div><p class=MsoNormal><span style='color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>[gwp] So if we have “draft” at 75, 150, 300; and the user can select both “draft” and 300; then what is the value of “draft” to the Print Service since the Print Service was told to print at 300 dpi.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>[gwp] Users are more likely to select “quality” equals “draft” and “contentOptimize” equals “photo” and not a dpi (ops: resolution). If a user ‘really understands’ the Print Service performance for differing dpi’s (again ops: resolution’s); then “quality” should never win because the user knows exactly what dpi they want!<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p></div><div><p class=MsoNormal>Quality != Resolution. They may be related, and there may in fact be constraints that cause a particular combination to conflict, but they are not mutually exclusive and express separate intent. The IPP/2.0 recommendation to prefer Quality over Resolution when there is a conflict is a pragmatic approach to automatic conflict resolution.<o:p></o:p></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>[gwp] Print-Resolution is a function of both Quality AND Content-Optimize. Any printer today can determine a resolution from these two values. If a user specifies a resolution then the Print Service should use the resolution (resolution is always the winner) since the user is stating they want the specified resolution that gives them a desired quality for the content!<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>[gwp] The conclusion is then<o:p></o:p></span></p><ol style='margin-top:0in' start=1 type=1><li class=MsoNormal style='color:blue;mso-list:l1 level1 lfo7'><span style='font-family:"Cambria","serif"'>Specified Resolution wins over “Quality” - always, since the User specified ‘use this resolution”.<o:p></o:p></span></li><li class=MsoNormal style='color:blue;mso-list:l1 level1 lfo7'><span style='font-family:"Cambria","serif"'>Content-Optimize MUST be required – for a printer to properly determine the correct resolution when resolution is not specified.<o:p></o:p></span></li><li class=MsoNormal style='color:blue;mso-list:l1 level1 lfo7'><span style='font-family:"Cambria","serif"'>Print-Quality is [Quality (-Intent) + Content-Optimize ] or [ Resolution] but not both.<o:p></o:p></span></li></ol><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>Glen<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'><o:p> </o:p></span></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Feb 1, 2012, at 3:02 PM, Petrie, Glen wrote:<o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>Mike, Pete, (All)</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>So, should the PJT not specify both but rather specify one or the other? I know that for the PJT, that “quality” is required while “resolution” is optional. So if “quality” is required and always wins; what is the value or need for “resolution”? The spec’s do not have a value of “unknown” or “other” for “quality”; so, the Print Service will not ever use the “resolution” information and, in fact, the “resolution” data simply adds confusion. </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>However, if “quality” and “resolution” were made either-or-but-not-both, then a client could specify either without a “winner”. The other option is add the values “unknown” or “other” to “quality” which directs the Print Service to use “resolution”.</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'>Glen</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'> </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:blue'> </span><o:p></o:p></p></div><div><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Michael Sweet <a href="mailto:[mailto:msweet@apple.com]">[mailto:msweet@apple.com]</a><span class=apple-converted-space> </span><br><b>Sent:</b><span class=apple-converted-space> </span>Wednesday, February 01, 2012 12:52 PM<br><b>To:</b><span class=apple-converted-space> </span>Petrie, Glen<br><b>Cc:</b><span class=apple-converted-space> </span><a href="mailto:mfd@pwg.org">mfd@pwg.org</a><br><b>Subject:</b><span class=apple-converted-space> </span>Re: [MFD] Question on Resolution Versus Qaulity</span><o:p></o:p></p></div></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Glen,<o:p></o:p></p></div><div><div><p class=MsoNormal> <o:p></o:p></p></div></div><div><div><p class=MsoNormal>This is covered in IPP/2.0; basically if there is a conflict between resolution and quality, quality wins.<o:p></o:p></p></div></div><div><div><p class=MsoNormal> <o:p></o:p></p></div></div><div><div><p class=MsoNormal>As far as PWG Raster goes, that is a separate capability (PwgRasterDocumentResolutionSupported) that expresses the capabilities of the input side of the printer's imaging engine, while Resolution expresses the capabilities of the output side of the printer's imaging engine.<o:p></o:p></p></div></div><div><div><p class=MsoNormal> <o:p></o:p></p></div></div><div><div><p class=MsoNormal>(i.e. a printer might only accept 360dpi raster data but print it at 2880dpi...)<o:p></o:p></p></div></div><div><div><p class=MsoNormal> <o:p></o:p></p></div></div><div><div><p class=MsoNormal> <o:p></o:p></p></div><div><div><div><p class=MsoNormal>On Feb 1, 2012, at 8:52 AM, Petrie, Glen wrote:<o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br><br><o:p></o:p></p></div><div><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif"'>Pete (All),</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif"'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif"'>I remember a discussion about resolution versus quality (I think the PWG raster discussions). I thought that is quality and resolution did not agree (as interpreted by the print service capability/definition) then quality was to be used. In the PJT should resolution and quality be denoted as either but not both? Or at least should a note be added?</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif"'> </span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif"'>Glen</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Cambria","serif"'> </span><o:p></o:p></p></div></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Andale Mono","serif"'><br>--<span class=apple-converted-space> </span><br>This message has been scanned for viruses and<span class=apple-converted-space> </span><br>dangerous content by<span class=apple-converted-space> </span><a href="http://www.mailscanner.info/"><b>MailScanner</b></a>, and is<span class=apple-converted-space> </span><br>believed to be clean. _______________________________________________<br>mfd mailing list<br><a href="mailto:mfd@pwg.org">mfd@pwg.org</a><br><a href="https://www.pwg.org/mailman/listinfo/mfd">https://www.pwg.org/mailman/listinfo/mfd</a></span><o:p></o:p></p></div></div></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Andale Mono","serif";color:black'>_________________________________________________________<br>Michael Sweet, Senior Printing System Engineer, PWG Chair</span><o:p></o:p></p></div></div></div><div><p class=MsoNormal> <o:p></o:p></p></div></div></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Andale Mono","serif";color:black'>_________________________________________________________<br>Michael Sweet, Senior Printing System Engineer, PWG Chair<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><br>-- <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. <o:p></o:p></p></div><br />--
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