Digital BW, The Print

Paul Roark wrote:

>Is anyone using QTR with the 7600? 
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>How about with the 7600 loaded with UT7?
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>I just tried QTR with the existing UC curves to see if the dmax was any
>better than with the Epson driver.  With MIS Eboni installed, I'm getting no
>better dmax from QTR.  QTR is obviously pouring on more ink, but it does not
>seem to help.  (Increasing the ink limit in the Epson driver also does not
>help.)
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>Any suggestions for getting a better dmax from the 7600 would be most
>welcomed.
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>Paul
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>www.PaulRoark.com <http://www.paulroark.com/>  
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Paul,

What is the Dmax you get with both drivers ?  Is there a Dmax difference 
between the different dpi resolutions and bidirectional versus 
unidirectional ? The effect of drying time between strokes.
With Eboni and a 9000 I can't get higher than 1.7.  Boosting the black 
with the next grey may help or not, I use it to compensate the 
irregularity of the black head but I probably loose some density by it. 
In general it is more the ink that is at its max than anything else. 
Reflection of the ink surface limits the Dmax, how much ink you pour on 
doesn't matter.  I guess the ink limit you can use is at 80-85% while I 
shut it off at 60%. The total ink will be similar but the 9000 hasn't 
the more gradual ink squirting of the newer models. I have taken 60% as 
it is a bit higher than my Spectrometer reads the maximum because the 
linearising seems to take away a bit of the ink again.

Ernst