QTR-Quadtone RIP

I currently use CS5 with osx 10.6.8 and piezography k7 inks.  When printing something like the QTR 21 step grey scale  file from PS using John Cone's instructions for QTR I always see non-linearity at the > 92% grey levels. John' printing directions provide the best way to circumvent the color mangement problems with osx and k7 inks.  I have solved this problem by using Parallels 7 and the QTR stand alone printing program for Windows.  I use Windows 7.  I get very linear responses with k7 inks using this approach.  It's not the cheapest fix but it does solve the linearity problem.  I got this idea from reading John's blog where he said that while they are Mac-centric they use Windows PC's to run their printers.  

I hope this helps. 

Skip  
--- In QuadtoneRIP@yahoogroups.com, "David" <dpgoldenberg33@...> wrote:
>
> Hi,
>    Can anyone say whether there has been any improvement in this situation? I am still using CS 2, and am interested in upgrading to CS 4 or 5, but only if one or the other can be used easily with QTR.
> 
> Thanks,
> David
> 
> --- In QuadtoneRIP@yahoogroups.com, Roy Harrington <roy@> wrote:
> >
> > CS4 or CS5 along with OSX 10.5 or 10.6 have a problem doing grayscale.
> > What happens is that no matter what selections you make in PS the OS always
> > converts whatever you send it to a fixed profile.   In 10.5 its
> > Generic Gray which
> > is a gamma 1.8 profile.  In 10.6 its a new profile called Generic Gray Gamma 2.2
> > which you'd think was a gamma 2.2 curve but its not.  The little glitch you see
> > in the graphs is exactly the conversion of Gray Gamma 2.2 to Generic GG 2.2.
> > 
> > Using CS3 is the easiest workaround currently.
> > 
> > Roy
> > 
> > On Thu, Feb 3, 2011 at 10:31 PM, hhchapman4104 <hchapman@> wrote:
> > >
> > >
> > > Hello Andrew,
> > > I don't believe the problem is the print settings between CS3 and CS5. I appreciate your suggestion though.
> > > -Harlan
> > > --- In QuadtoneRIP@yahoogroups.com, Andrew Darlow <ad@> wrote:
> > >>
> > >> Hi:
> > >>
> > >> I'm guessing you know that the way the print dialog works is different. You should definitely save a Preset when you click on Print Settings as the settings might not be sticking.
> > >>
> > >> I wrote an article about it here:
> > >>
> > >> http://www.pixiq.com/article/how-to-navigate-changes-to-the-print-dialog-box-in-photoshop-cs5
> > >>
> > >> Hope that helps,
> > >>
> > >> Andrew
> > >>
> > >> Andrew Darlow
> > >> Editor, The Imaging Buffet
> > >> http://www.imagingbuffet.com
> > >> Author, 301 Inkjet Tips and Techniques:
> > >> An Essential Printing Resource for Photographers - http://www.inkjettips.com
> > >> and
> > >> Pet Photography 101:
> > >> Tips for Taking Better Photos of Your Dog or Cat - http://www.PhotoPetTips.com
> > >> http://facebook.com/andrewdarlow
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> On Feb 2, 2011, at 8:08 PM, hhchapman4104 wrote:
> > >>
> > >> > Printing with linearized QTR profiles in CS3 works fine for me. When I print the same file in CS5 the dark values are off. I am consistent in my color management (all gray gamma 2.2) and print set up.
> > >> > See this example using the supplied QTR Ilford Smooth Pearl profile printing a 21 step wedge and reading LAB L with an Eye-One spectrophotometer. The red line is the print from Photoshop CS3, the blue line from CS5:
> > >> > http://img40.imageshack.us/f/cs3vscs5.jpg/
> > >> > Here is the Photoshop print dialog from CS5:
> > >> > http://img821.imageshack.us/i/cs5printdailog.jpg/
> > >> >
> > >> > I'd heard rumblings in the past about possible issues with printing in CS5 but my poor searching skills didn't turn anything up on this in this forum.
> > >> >
> > >> > I can continue to print in CS3 but was wondering if there was a fix to enable using CS5?
> > >> >
> > >> > Thank you!
> > >> >
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> [Non-text portions of this message have been removed]
> > >>
> > >
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
>