QTR-Quadtone RIP

Well, it's been months since I got back to this problem of printing color accurately from within QTR Print Tool. I made two prints in PT, both of which had colors way off. I normally print from Lightroom, and when I printed both prints again from that app, the colors were spot on.

So looking at the print dialogue boxes in PT, I think I see where one could accidentally tell it to profile the print twice (no, you wouldn't want to do this, but the PT app doesn't prevent you from doing it). 
1. By checking "Application Managed" in the Print Color Management box, indicating the paper profile you need to use, and then
2. Checking "ColorSync" and then naming a paper profile in the "Color Matching" section of the "Print..." dialogue box in the Epson driver.

Correct me if I'm wrong, but I think you need to do ONE or the OTHER, never BOTH. If you name the profile from the Epson driver "Print..." dialog, then set "Print Color Management " in Print Tool to "NO COLOR Management"

Which, BTW, is recommended? 
J Riley Stewart 

--- In QuadtoneRIP@yahoogroups.com, Roy Harrington <roy@...> wrote:
>
> Color Management sure has gotten to be a mysterious thing.
> Conceptually its not that complicated
> but in practice its hard to know who's doing what.  In general there
> are 3 main players -- the application
> (photoshop, lightroom, qtr-print-tool, or something else), the
> operating system OSX (colorsync is apple's
> CMS) and finally the driver (Epson driver or QTR driver for B&W).
> Unfortunately they all want to get into
> the act -- but you need just exactly one to do the actual CM conversion.
> 
> The concept is to print out a target with no color management
> happening, measure it and create a profile.
> Then from then on print just introducing this profile into the print
> workflow.  The important thing though is
> that all the settings while printing have to be IDENTICAL to those
> that were used when printing the original target.
> The problems arise -- if you use different print settings, if you
> print with different apps maybe they do
> different things, if you print with a different OS maybe something's
> different, if you have a different driver
> version they may have changed something.  Not that all these things
> are likely a problem but sometimes
> they are.
> 
> In practice usually it depends on where you got the profile.  Epson
> profiles for Epson papers for a specific
> driver tend to work pretty well.  Downloaded profiles from
> someone/paper manufacturer are harder to
> know how they were made.  My case for a custom paper showed one
> printer's profiles too light and one
> too dark. Making my own fixed with Print-Tool made both printers work
> just fine.  The important thing
> is to always use OSX Print Presets to make sure you have consistent
> settings.  CS6 is particularly tricky
> here because there are settings in the Preset and settings stored with
> the image.  Make them all the same.
> Most of the settings show up on the Print Settings print dialog pane
> but the Color Matching pane can
> also be important.  CS6 Manages Color will force Color Matching to
> ColorSync so if you want Print-Tool the same you
> should check this and make it ColorSync as well.  If you have a
> working setup its hard to give a guaranteed
> answer -- try various ways to see what works.
> 
> Roy
> 
> On Sun, Nov 11, 2012 at 10:28 AM, Eric Brody <brodyer@...> wrote:
> > If I'm understanding Nick correctly, my "too light" color prints with the QTR tool will require me to re-profile my monitor with my X-Rite Eye-One Display 2 device. It would seem that to match the prints from the QTR tool, I'll need to brighten my monitor significantly  to get it to match the prints from the QTR tool?
> >
> > I'd love to know how the PS printing "double profiles" the process. I also wonder, as did Jim Stewart, whether I'll need all new color profiles. For my limited color printing, I've always used the canned profiles from the paper manufacturers, and have been pleased with the results. For black and white, of course, I use the QTR profiles.
> >
> > Nick was kind enough to make a QTR neutral profile for me for Canson Platine Fiber Rag, a lovely paper albeit expensive. Embarrassingly I did not realize, I'll need warm and sepia ones as well to use multiple curves. Sorry Nick, I've been meaning to send you a heartfelt thanks you note as well as asking if you'll make a couple of more curves.
> >
> > Printing is an amazing world.
> >
> > Eric
> >
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> 
> 
> 
> -- 
> Roy Harrington
> roy@...
> www.harrington.com
>