QTR-Quadtone RIP

Hi,
I'm using an Epson 2200 with the NK7 inks from John Cone on Hahn. Photo Rag 308. 

From a discussion on the Piezography forum, and with the folks from Inkjetmall, it seems 
I'm laying down too much ink and the Hahn. Paper ripples. 

If I set the ink limit slider to -50% the ripples dissapear (the print, however, looks terrible). 
If I set it to -25% they reappear. 

I'd like to create a new curve/profile for my printer but I had a question.  I've printed the 
ink separation test page and am trying to find the patches where the inks max out but the 
black ink will max out at about 40 - 45%. Everything else at around 80 - 85%. Is this 
normal? Should I just set the limit to 80% and ignore the black ink? 

Thanks for the help. 

John

My computer: 
Mac 2GHz. DP G5 
- OS 10.4.8 
- 2 GB RAM 
- Photoshop CS

Go with the 40-45% and rerun the separation image using the lower ink 
limit.  Measure the dMax of the lighter inks and proceed as usual.

 
> I'd like to create a new curve/profile for my printer but I had a 
question.  I've printed the 
> ink separation test page and am trying to find the patches where the 
inks max out but the 
> black ink will max out at about 40 - 45%. Everything else at around 
80 - 85%. Is this 
> normal? Should I just set the limit to 80% and ignore the black ink?

Thanks! I'll give that a try.


--- In QuadtoneRIP@yahoogroups.com, "Jeff Randall" <jrandall@...> wrote:

>
> Go with the 40-45% and rerun the separation image using the lower ink 
> limit.  Measure the dMax of the lighter inks and proceed as usual.
> 
>  
> > I'd like to create a new curve/profile for my printer but I had a 
> question.  I've printed the 
> > ink separation test page and am trying to find the patches where the 
> inks max out but the 
> > black ink will max out at about 40 - 45%. Everything else at around 
> 80 - 85%. Is this 
> > normal? Should I just set the limit to 80% and ignore the black ink?
>

I am assuming that you are using the QTR Tools|Options|Calibration 
Mode to print out the test image at 100% and then at the lower ink 
level(your 40-45%).  Are you visually matching the patches or are you 
using a densitometer/colorimeter/spectrometer or scanner?


--- In QuadtoneRIP@...m, "jwhorfin88" <jpphotog@...> wrote:

>
> Thanks! I'll give that a try.
>

Yes. I print the test image in calibration mode at 100%. I'm using a densitometer to measure 
patches. I'm following instructions contained in the QTR User Guide.

--- In QuadtoneRIP@yahoogroups.com, "Jeff Randall" <jrandall@...> wrote:

>
> I am assuming that you are using the QTR Tools|Options|Calibration 
> Mode to print out the test image at 100% and then at the lower ink 
> level(your 40-45%).  Are you visually matching the patches or are you 
> using a densitometer/colorimeter/spectrometer or scanner?
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "jwhorfin88" <jpphotog@> wrote:
> >
> > Thanks! I'll give that a try.
> >
>