Digital BW, The Print

I think you can get pretty close just modifying one of the existing 
profiles. In QTRgui you can do the following:

1. Click 'Curve creation'.

2. File > Open > c:\Program 
files\QuadToneRIP\Profiles\2200-uc\UCmk-MEntradaNatural-sepia.qidf

3. Raise the ink limits for LM and Y (they should be 29 and 10 in the 
existing profile). You can think of the ink limits for LC, LM and Y as 
CMY values just like you would mix in Photoshop. The higher you set one 
of them the stronger that ink will tone your print.

4. Save the profile with a new name like UCmk-MEntradaNatural-brown.qidf
in the same folder.

5. Click 'Create curve'.

The profile should now appear in the 'Curves' drop-down list when you print.

I made a test curve raising LM to 45 and Y to 25 here:
http://download.petraflux.com/UCmk-MEntradaNatural-brown.zip

Increasing the density of the toner also increases the density of the 
whole curve of course, so ideally you would want to relinearize after 
doing this. You might find that smaller changes are acceptable without 
relinearizing though.

--
Daniel Staver
http://daniel.staver.no


> Has anyone successfully made a Chocolate Brown profile for QTR and UC 
> ink. I am presently using Mohab Natural. The Sepia profile does not 
> have the rich brown look I'm after and , unfortunately I do not have
> an Eye-one as yet to be able to do the profile myself.