Digital BW, The Print

I'm a real newbie on this so any help would be greatly appreciated. I am attempting to 
setup QTR on my system with my Eye One following the calibration guide. I have an Epson 
2200 using EEM and stock UC inks.  I printed an ink separation page set at 100% and let it 
dry overnight. I've downloaded Profilemaker 5.08 and configured my Eye One Pro for 
reflection with spectral checked. When I bring up the spot measurement window, I have 
the following settings:

Colometric
Color Space - Lab
Observer angle - 2 degrees
Illumination - D50
Delta E
Sample checked

I am at the point in the process where I am trying to discern the hardware ink limit for the 
printer.  Rather than trust my eyes, I'd prefer to measure it. It's at this point that I'm 
confused.  Do I start measuring at 50% and work my way up the chart and if so, what am I 
looking for?  If I perform several readings, I get the following:
50% - 22.4
70% - 20.3
80% -17.6
85% -17.0
90% - 16.7

Do I conclude that I've reached maximum at the 85% level as there is not much of a 
difference between 85% and 90%?  

Thanks.

--Joel

Joel, in my practice, L is increasing after you are reached the 
minimum. When you have too much inks, DMax is getting lower. So keep 
measurements until you see values increasing. You may do multiple 
readings averaging the value.

Sergei

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jturner4210626" 
If I perform several readings, I get the following:
> 50% - 22.4
> 70% - 20.3
> 80% -17.6
> 85% -17.0
> 90% - 16.7
> 
> Do I conclude that I've reached maximum at the 85% level as there 
is not much of a 

> difference between 85% and 90%?  
> 
> Thanks.
> 
> --Joel
>

Sergei,

If I understand you correctly, are you implying that if my 95% measurement is above 16.7 
than 90% is my ink limit?  

Are you aware of a formula to convert L to Density to determine dmax?

--Joel

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Sergei Antonov" 
<antonovsergei@...> wrote:

>
> Joel, in my practice, L is increasing after you are reached the 
> minimum. When you have too much inks, DMax is getting lower. So keep 
> measurements until you see values increasing. You may do multiple 
> readings averaging the value.
> 
> Sergei
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jturner4210626" 
> If I perform several readings, I get the following:
> > 50% - 22.4
> > 70% - 20.3
> > 80% -17.6
> > 85% -17.0
> > 90% - 16.7
> > 
> > Do I conclude that I've reached maximum at the 85% level as there 
> is not much of a 
> > difference between 85% and 90%?  
> > 
> > Thanks.
> > 
> > --Joel
> >
>

Yes, if 90% is your minimum L, then it is the ink limit.
There is number of calculators online that could do the conversion. 
Recently one was referenced on this forum, make a search to find.
You actually don't need density, QTR could take L as you measure it.

--Sergei

<JTurner421@...> wrote:
> If I understand you correctly, are you implying that if my 95% 
measurement is above 16.7 
> than 90% is my ink limit?