Digital BW, The Print

Carl and Folks. 

I have done more testing.  About 1 week ago I printed out 3 more sets of QTR-51-random 
targets with the following settings

1.  2880, best
2.  1440, best
3.  2880, best, -25% ink limit

The 2880/best and 2880/best/-25% both resulted in the same reversals in the linearity.  
The 1440 does not have any reversals, and the profile was created properly.  My theory 
was that perhaps the inkloads were too high at 2880, and I was trying to prove it out.  I 
think Walt ran into similar problems in the 100-90% patches when he was trying to profile 
HPR using ABW.  Do you think it is possible that I would need more than a 25% ink limit?  I 
guess I'll try to limit the ink load even more and see if that helps.  My concern is that these 
are being printed with the QTR curves created by IJM for HPR.  Not sure why I would need 
to limit the ink, since I assume their curve should have the ink limits built in.

Carl, since you have had some experience with K7 (though I know you are using a 
modified inkset), do you have any thoughts on this issue?

Best.

Josh



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield <scho@m...> 
wrote:
>
> There is a density reversal from step 38 to 40 in the 51 step.
> 
> On Dec 1, 2005, at 8:49 AM, joshhackney wrote:
>