QTR-Quadtone RIP

Hi Roy,

Thank you for the response, I will begin to start using your advice to test for better 
calibration/separation prints tonight.  However, is there any article/notes that describe the 
process that you advise in a more thorough and technical manner?

I just can't believe that Piet and myself are the only QTR users that are running OSX Tiger.  
Is there any additional information out there?

Much appreciation

Cody Thomas


--- In QuadtoneRIP@yahoogroups.com, "Roy Harrington" <roy@h...> wrote:
>
> 
> Hi Piet and Cody,
> 
> Sorry for the delay in info -- I've been away for a while and
> am just getting caught up.
> 
> I've looked at both of your scans and the printing of a inkseparation in Calibration 
Mode.
> 
> First a little history:
> Back several versions on the Mac you needed create a special "calib" profile in order
> to set ink limits when printing the inkseparation.psd.   This never existed on the PC
> version.  It was an overly complicated way to accomplish a fairly simple need.
> 
> So in the process of getting the PC and Mac using more common code the special
> calib profiles were dropped in favor of an on-the-fly creation of dummy profiles for
> the inkseparation printouts.  To set the ink limit the "Tone Blend" option is now used.
> Think of Curve1 as a 100% ink limit and Curve2 as a 0% ink limit -- the blend lets you
> pick anything in between. 
> 
> ----------------
> 
> What you both are seeing is the a real profile split into its separate ink parts.
> You see the LK come in at the low end and taper off, K comes in at the dark end.
> The solution is simple -- just leave the Curve selections at "None" and vary the Tone
> Blend to set the ink limits.   You will then see all the inks as raw stepwedges.
> One other consideration is that there are a couple different inkseparation files to 
> accommodate the greater number of inks in the latest printers.  The smaller ones allow
> you to get 2 prints on a letter size paper but the 8 ink one doesn't quite fit.  
> 
> Roy
> 
> --- In QuadtoneRIP@yahoogroups.com, "Piet Weber" <p.weber@f...> wrote:
> >
> > Hi Cody and all QTR users,
> > 
> > Yesterday, I posted the same issue in message 1861. Their must be a simple solution 
to 
> > this problem that has now become structural. Please help us out.
> > 
> > Piet Weber
> > 
> > --- In QuadtoneRIP@yahoogroups.com, "cteditions" <cteditions@a...> wrote:
> > >
> > > QTR Group,
> > > 
> > > I would greatly appreciate anyone who would take the time to look at the scanned 
> image 
> > > of my "inkseperations.tif" print (with densitometer readings in pencil) and the JPEG 
> > capture 
> > > of my "Curve Descriptor File" calibration settings and let me know what I am doing 
> > wrong.  
> > > 
> > > Located in the "QTR Calibration" album in Photos on the QTR homepage
> > > 
> > > I am trying the calibration procedure in OSX and am having serious problems.  I 
can't 
> > > seem to find anybody to respond to my inquiry… I would greatly appreciate it.  
> > Questions 
> > > concerning the print:
> > > 
> > > 1.  Why aren't ALL the inks printing out?
> > > 2.   If only the Black/Grays are supposed to print why do ONLY 2 print instead of 3?
> > > 3.  Why does the Black start at 50% and go to 100%?
> > > 4.  Why does the LightBlack MAX at 65% and step-down in BOTH directions?
> > > 
> > > Please help if you can…..
> > > 
> > > Much appreciation
> > > 
> > > Cody Thomas
> > >
> >
>