[printing-driver] RE: IPP> Print Quality Issue resolution

[printing-driver] RE: IPP> Print Quality Issue resolution

Harry Lewis harryl at us.ibm.com
Mon Jul 14 18:04:31 EDT 2003


>My main question with TonerSaving/InkSaving/MarkerSaving is how this is 
any different than PrintQuality(High|Normal|Draft)
To answer this question, straightforward, there are implementations where 
you can select High|Normal|Draft independently from "Saver". 
Administrators may want to configure policy that "Saving" must always be 
on yet still allow the choice of High|Normal|Draft, within that context. 

>PrintQuality=High & MarkerSaving=False would seem to say "print in high 
quality, and waste toner/ink for no good reason
I think people would expect:
 PQ=High|Saving=Off to result in the BEST possible quality. 
 PQ=High|Saving=On to result in the best possible quality while still 
saving marker (toner, ink ...)
 PQ=Draft|Saving=Off to result in the FASTEST possible printing
 PQ=Draft|Saving=On to result in the fastest possible printing with 
legibility that may not stand up to close scrutiny because marker (toner, 
ink...) has been used sparingly. 

---------------------------------------------- 
Harry Lewis 
Chairman - IEEE-ISTO Printer Working Group
http://www.pwg.org
IBM Printing Systems 
http://www.ibm.com/printers
303-924-5337
---------------------------------------------- 



"TAYLOR,BOB (HP-Vancouver,ex1)" <bobt at hp.com> 
Sent by: owner-ipp at pwg.org
07/14/2003 02:36 PM

To
printing-driver at freestandards.org, "Zehler, Peter" <PZehler at crt.xerox.com>
cc
"IPP Discussion List (IPP at pwg.org)" <IPP at pwg.org>, 
printing-jobticket at freestandards.org
Subject
RE: [printing-driver] RE: IPP> Print Quality Issue resolution






My main question with TonerSaving/InkSaving/MarkerSaving is how this is 
any different than PrintQuality(High|Normal|Draft).  We as well have nifty 
algorithms for saving "marker" without impacting quality - but I don't 
know why we'd ever want to turn it "off" seperately from the notion of 
PQ/performance/economy tradeoff (which I maintain is what PrintQuality 
actually is).  The semantics of this as a separate attribute seem somewhat 
odd to me - i.e., PrintQuality=High & MarkerSaving=False would seem to say 
"print in high quality, and waste toner/ink for no good reason", and 
PrintQuality=Draft & MarkerSaving=False would seem to say "print in poor 
quality, but waste tone/ink anyway".  IMHO, a "separate" TonerSaving mode 
is really a vendor-specific extension of PrintQuality, which as Ira noted 
as already supported (though they are supposed to be IANA-registered, 
which I'm guessing most vendors have not bothered to do).
 
thanks,
 
bt
-----Original Message-----
From: Harry Lewis [mailto:harryl at us.ibm.com] 
Sent: Friday, July 11, 2003 6:49 AM
To: Zehler, Peter
Cc: IPP Discussion List (IPP at pwg.org); printing-driver at freestandards.org; 
printing-jobticket at freestandards.org; Zehler, Peter
Subject: [printing-driver] RE: IPP> Print Quality Issue resolution


My concern is that "save toner" is probably the most concrete concept 
compared to "Good, Better, Best" or "Text, Image, Graphics". The later has 
efficient application only in special cases (some of which may be very 
significant, like printing photo's). Otherwise, people stare at their 
mixed object document and wonder. I feel "save toner" should be explicit. 

We went from a flat set of descriptors to a pairing.. perhaps we should 
really go to a matrix (although I don't like the perceived complexity) 

Good - Better - Best 
Text - Text+Graphics - Graphics - Image 
TonerSaving 

---------------------------------------------- 
Harry Lewis 
Chairman - IEEE-ISTO Printer Working Group
http://www.pwg.org
IBM Printing Systems 
http://www.ibm.com/printers
303-924-5337
---------------------------------------------- 


"Zehler, Peter" <PZehler at crt.xerox.com> 
07/11/2003 04:54 AM 


To
Harry Lewis/Boulder/IBM at IBMUS, "Zehler, Peter" <PZehler at crt.xerox.com> 
cc
"IPP Discussion List (IPP at pwg.org)" <IPP at pwg.org>, 
printing-driver at freestandards.org, printing-jobticket at freestandards.org 
Subject
RE: IPP> Print Quality Issue resolution








Harry, 
We felt that there are many different attributes involved in heuristics 
for saving toner and printing fast.  Some of those are "resolution", 
"media" and aspects of the document content.  We felt the requirements 
were met by keeping the existing "print-quality" values and augmenting 
them with hints on how to process the document content to achieve 'draft' 
'normal' and 'high'.  The assumption is that draft is fastest and uses the 
least toner. 
Pete 
  
Peter Zehler 
XEROX 
Xerox Innovation Group 
Email: PZehler at crt.xerox.com 
Voice:    (585) 265-8755 
FAX:      (585) 422-7961 
US Mail: Peter Zehler 
        Xerox Corp. 
       800 Phillips Rd. 
       M/S 128-25E 
       Webster NY, 14580-9701 
-----Original Message-----
From: Harry Lewis [mailto:harryl at us.ibm.com] 
Sent: Thursday, July 10, 2003 11:26 PM
To: Zehler, Peter
Cc: IPP Discussion List (IPP at pwg.org); printing-driver at freestandards.org; 
printing-jobticket at freestandards.org
Subject: Re: IPP> Print Quality Issue resolution 
  

> We finally agreed that the two values 'save-toner' and 'speed' are 
implied by the "print-quality".  Since they were not required, they were 
removed. 

I think this warrants further examination. I have known toner saving 
methods that do a very good job of preserving print quality. 
---------------------------------------------- 
Harry Lewis 
Chairman - IEEE-ISTO Printer Working Group
http://www.pwg.org
IBM Printing Systems 
http://www.ibm.com/printers
303-924-5337
---------------------------------------------- 

"Zehler, Peter" <PZehler at crt.xerox.com> 
Sent by: owner-ipp at pwg.org 
07/10/2003 01:41 PM 


To
"IPP Discussion List (IPP at pwg.org)" <IPP at pwg.org>, 
printing-jobticket at freestandards.org, printing-driver at freestandards.org 
cc
  
Subject
IPP> Print Quality Issue resolution

  


  
 





All, 
During the PWG/FSG meeting in Portland we had a discussion about the IPP 
"print-quality" attribute and FSG's desire to add two new values, 
'economy' and 'fine', where 'economy' is lower than 'draft' and 'fine' is 
higher than 'high'. The FSG further proposed the addition of a new 
attribute, called "print-optimize", that would augment "print-quality" 
with values of 'image', 'photo', 'text', 'text-and-image', 'save-toner' 
and 'speed'. 
With regard to 'economy' and 'fine', we agreed that 'economy' would map to 
"print-quality"='draft' and 'fine' to "print-quality"='high'.  There may 
be end user visible features that map to multiple attributes.  We leave it 
to specific print domains to model these higher level aggregate features. 
When appropriate we will add needed elements to the Semantic Model. 
There was a lot of push back on "print-optimize".  The main concern was 
that "print-optimize" contained a mixed bag of items.  The two main 
categories were content metadata and rendering hints.  We finally agreed 
that the two values 'save-toner' and 'speed' are implied by the 
"print-quality".  Since they were not required, they were removed.  The 
remaining values are needed to direct the type of optimization/processing 
that will be performed on the content.  It does not necessarily mean the 
value describes the content.  To clarify this we changed the attribute 
name to "print-content-optimize".  Finally the value 'image' seemed the 
same as 'photo'.  The name for this was changed to 'graphic'. 
As a result the following attribute will be added to the JobX 
specification in it next revision. 
   print-content-optimize (type2 keyword) 
      This attribute refines the value specified by the print-quality 
      attribute. 
      The standard keyword values are: 
         'graphic': optimize for graphic clarity 
         'photo': optimize for photo clarity 
         'text': optimize for text clarity 
         'text-and-graphic': optimize for both text and graphic clarity 
Peter Zehler 
XEROX 
Xerox Innovation Group 
Email: PZehler at crt.xerox.com 
Voice:    (585) 265-8755 
FAX:      (585) 422-7961 
US Mail: Peter Zehler 
        Xerox Corp. 
        800 Phillips Rd. 
        M/S 128-25E 
        Webster NY, 14580-9701 
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