QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, "Tom Moore" <r.t.moore@...> wrote:
>
> You don't state which paper types, matte or glossy. Have you looked 
at any
> existing examples of curves that come with qtr? You can do that by 
loading
> in the qidf file in the Curve Creation window. They are in:
>      C:/program files/quadtonerip/profiles/2200-ut7
> Use the EEM curve as an example for a matte paper. Use Ilford 
Smooth Pearl
> as an example of a glossy paper. The inks are used differently for 
the 2
> types of paper.
> 
> I'm not sure what you mean by "ink use selection".
> 
> I found looking at existing curves a very useful way to get started.
> 
> Tom Moore
> 
> > -----Original Message-----
> > From: QuadtoneRIP@yahoogroups.com 
[mailto:QuadtoneRIP@yahoogroups.com] On
> > Behalf Of xylonic2000
> > Sent: Saturday, November 18, 2006 9:08 PM
> > To: QuadtoneRIP@yahoogroups.com
> > Subject: [QuadtoneRIP] Toner Curve Confusion
> > 
> > Have UT-7 inks in an Epson 2200 on a Dell Workstation with QTR
> > 2.4.3.10.
> > 
> > Prints fine using curves packaged with QTR.  However, I am 
attempting
> > to create curves for a couple of odd-ball papers (cheap).
> > 
> > Tom Moore's User Guide is quite instructive.  However, he does not
> > mention utility of the Toner and Toner2 curves that one may 
specify
> > in the process of accommodating a particular paper. The Help file
> > states "You can setup two different toner curves for toner ink
> > control.  The toner curves are applied to the inks by using the 
Toner
> > and Toner2 ink use selections."  A search of past messages and the
> > data base was fruitless; plenty of references to "split toning" if
> > only that could be my problem.
> > 
> > As a newbie I may well be overlooking the obvious, but I have not
> > found the means for making an "ink use selection".  I have set
> > Highlight, Shadow, and Gamma values to extremes, but see no 
effect on
> > a 21-step wedge print.
> > 
> > Can someone clue me in?
> >
Thank you for the response, Tom.  Unfortunately, I have looked at 
existing curves (UT7-EEnhMatte-cool specifically) and am working on 
matte papers which achieve reasonable results with the EEnhMatte 
curve.  But, I am attempting to create curves specific to the papers 
I have; one of which is 11x14-inch acid-free, 300 GSM, artist 
watercolor stock.

Attempting to create a curve, I believe that the Gray Curve is always 
selected.  I have selected both the Toner and Toner2 curves (they are 
highlighted when I click on them) to create ostensibly unique curves.
However, when I print the 21-step wedge for those unique curves as 
well as the Gray Curve and measure ink densities using a Canon LIde80 
scanner, PS can find no difference among the 100%, 50%, 10%, 0% and 
paper values for the three curves.

"ink use selection" is the term appearing under The Toner Curves Tabs 
when QTR Help is invoked for Creating Curves.  I thought it implied 
using Toner or Toner2 when creating a curve; when that seemed 
fruitless, I looked for ink selection elsewhere to no avail.  Perhaps 
I am not invoking the Toner and Toner2 values properly.