QTR-Quadtone RIP

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
> >
>