attachment-0001

<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Glen,<div><br></div><div>Since we are in PWG Last Call, these would be great as last call comments, but my responses are inline...</div><div><br><div><div>On May 30, 2013, at 10:40 AM, "Petrie, Glen" &lt;<a href="mailto:glen.petrie@eitc.epson.com">glen.petrie@eitc.epson.com</a>&gt; wrote:</div><blockquote type="cite">


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<div lang="EN-US" link="blue" vlink="purple">

<div class="Section1"><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">All,<o:p></o:p></span></font></p><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">&nbsp;</span></font></p><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">I
have not had the cycles to review the IPP-FaxOut specification until now and
was greatly surprised at the some of the requirements and specification.&nbsp;&nbsp;
<o:p></o:p></span></font></p><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">&nbsp;</span></font></p><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">For
example "IPP FaxOut Jobs MUST be retained for a minimum of 300
seconds"</span></font></p></div></div></blockquote><div><br></div><div>Job history in order for the client to know the disposition of the job (there are already legal requirements for retaining fax history longer than this anyways)</div><div><br></div><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple"><div class="Section1"><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">, "Printers [IPP FaxOut Service???] MUST support scaling and
color space conversion of document data to match the negotiated facsimile image
format at the job processing time"</span></font></p></div></div></blockquote><div><br></div>If the IPP Printer reports color fax support, the client may send a color document to fax. &nbsp;But if the receiver does not support color fax we want the IPP Printer to send it B&amp;W unless ipp-attribute-fidelity and print-color-mode are specified to force color fax.</div><div><br></div><div><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple"><div class="Section1"><p class="MsoNormal"><font size="3" face="Cambria"><span style="font-size:12.0pt">, and "Imaging Devices [IPP FaxOut
Services???] that can only stream print jobs to a single destination URI MUST
support retransmission of the current page".&nbsp;&nbsp; </span></font></p></div></div></blockquote><div><br></div>Retransmission of the current page is a basic fax protocol requirement; all MFDs I know of can buffer at least 1 page of fax data, and most buffer a lot more...</div><div><br></div><div><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple"><div class="Section1"><p class="MsoNormal"><span style="font-size: 12pt;">There
are many of these types of requirements that appear to be Client and/or the Imaging
Devices "product/implementation design specifications" and not what I
expected to be API interfaces capability and job submission specifications.</span></p><div><br></div></div></div></blockquote><div><br></div>We did have a lot of discussion about that last year, which resulted in all of the language to support low-end MFDs that could only buffer a single page and could not handle full retransmission.</div><div><br><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple"><div class="Section1"><p class="MsoNormal"><span style="font-size: 12pt;">For
instance, the IPP FaxOut Service should be provide capability on "Job
Retention times supported", "Fax Scaling Supported", "Color
Spaces Conversion Supported" and "Retransmission Supported"
versus this specification setting device and client design and implementation requirements
for these capabilities.</span></p><div><br></div></div></div></blockquote><div><br></div><div>As I mentioned above, legal requirements for fax vary but basically all of them require a retained job history far longer/larger than 300 seconds (5 minutes).</div><div><br></div><div>The Printer reports its supported scaling/colorspace conversion capability by reporting whether it supports color and what PWG Raster resolutions and types it supports. &nbsp;And a fax-capable MFD already has to support scaling (to the negotiated resolution) and probably dithering and colorspace conversions from its scanner.</div><div><br></div><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple"><div class="Section1"><p class="MsoNormal"><span style="font-size: 12pt;">An
example of the simplest fax out would be something like "no-cover,
single-sheet, one-recipient, (jpeg) image  to  fax binary CCITT Encoding,
no-retry, no-job-hold-after".&nbsp; Anything beyond that should be based
on the capability of the specific IPP FaxOut Service implementation and/or the
Client implementation but independent of a "MUST" requirement of the PWG
/ IPP FaxOut Service specification.&nbsp;&nbsp; However, the PWG / IPP FaxOut
Service specification must define how capability information is specified.</span></p><div><br></div></div></div></blockquote></div><div><br></div>The only required format is PWG Raster, which has several attributes that describe the supported resolutions and color spaces.</div><div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; font-family: 'Andale Mono'; border-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Andale Mono'; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -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;  "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">_________________________________________________________<br>Michael Sweet, Senior Printing System&nbsp;Engineer, PWG Chair</div></span></span>
</div>
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