QTR-Quadtone RIP

Lou,

 

Try printing a 100% patch in the middle of the page instead of at the edge.
Also, avoid any place where a roller has gone across the paper previously.

 

Paul

www.PaulRoark.com <http://www.paulroark.com/>  

 

 

  _____  

From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
Behalf Of Louis Dina
Sent: Thursday, November 29, 2007 1:51 PM
To: QuadtoneRIP@yahoogroups.com
Subject: [QuadtoneRIP] Dmax Question

 

I have noticed (and a friend also commented on this) that I often 
will get a higher Dmax in my original InkSeparation.tif print than I 
do in my final profiles. For example, a given paper may show a Dmax 
at 80% ink in the MK only test strip of 1.68, but when I complete my 
profile, using that ink limit, I usually lose maybe 0.03 to 0.05 
Dmax. So, my final profile may show a Dmax of 1.63 or 1.64, instead 
of 1.68.

I have tried using a lower ink limit, for example 60%, then used a 
black boost of 80% for the MK ink, and I have also tried using a flat 
80% TIL. In both cases, my final profile loses a little of its Dmax.

I am guessing that the addition of some lk, lc, or lm inks is 
actually lightening the ink in the blacks, or perhaps contributing to 
slight over inking of the paper. So, I tried lowering the black 
boost (or overall ink limit) to 70% or 75%, but I still see that loss 
in all my profiles (neutral, warm, sepia, cool, coolSe). 

I am assuming that the settings in the Gray Toner tab might help lay 
down less ink in the deepest shadows. I hate to give up any Dmax on 
some of the standard cotton papers, and some of them are coming in 
with a Dmax near 1.6 to 1.63 or so on my 4000 (using MISPro inks).

Have others noticed this? Is there an easy/good way around it? 

Thanks, Lou Dina

 



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