QTR-Quadtone RIP

I am using QTR 2.5.1 with the K7 Split Tone ink set and have just finished reflective 
densitometer readings on eight papers that I have where K7 Neutral profiles have been 
provided.

In all eight papers I am finding a 'stalling' in the curve, where the readings at the 75%, 80% 
and 85% ink swatches are within .01 or .02 of being the same ( for example all 1.39 on 
Moab Kayenta Photo Matte).  While the actual density numbers are different for each paper 
the grouping remains the same .... essentially the curve stalls at a flat spot and then 
continues up starting at the 70% swatch.

The nozzles check fine, and it is a consistent shape among the papers. Gamma 2.2 was 
used, letting the printer control the color in the preview box (OSX 10.4.9).

If the profiles are for the neutral K7 ink set is it possible that by mixing the two inks on 
the same curve it is showing that the neutral black inks lay differently in the shadows than 
the warm tone inks lay from the 70% and less tones?

Suggestions?

Thanks,

Mark Tuttle

Fixed by reloading the QuadTone RIP software and reinstalling the K7 profiles.  The Split 
Tone Sepia-Neutral K7 inks print with the same density as the Neutral set.

--- In QuadtoneRIP@yahoogroups.com, "mtuttle93" <mg_tuttle@...> wrote:
>
> I am using QTR 2.5.1 with the K7 Split Tone ink set and have just finished reflective 
> densitometer readings on eight papers that I have where K7 Neutral profiles have been 
> provided.
> 
> In all eight papers I am finding a 'stalling' in the curve, where the readings at the 75%, 
80% 
> and 85% ink swatches are within .01 or .02 of being the same ( for example all 1.39 on 
> Moab Kayenta Photo Matte).  While the actual density numbers are different for each 
paper 
> the grouping remains the same .... essentially the curve stalls at a flat spot and then 
> continues up starting at the 70% swatch.
> 
> The nozzles check fine, and it is a consistent shape among the papers. Gamma 2.2 was 
> used, letting the printer control the color in the preview box (OSX 10.4.9).
> 
> If the profiles are for the neutral K7 ink set is it possible that by mixing the two inks on 
> the same curve it is showing that the neutral black inks lay differently in the shadows 
than 

> the warm tone inks lay from the 70% and less tones?
> 
> Suggestions?
> 
> Thanks,
> 
> Mark Tuttle
>