Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" 
<paul.roark@v...> wrote:
>  >  ... the dual Eboni setup in the
>  > 7600 is producing the best dmax I've seen on matte paper with my 
7600.
>  > Needless to say, a rip is needed to control the LK and K 
independently.
>  > ...
> 
> I now have the latest version of IJC, which increases the ink 
limit.  The
> double Eboni jets now have an advantage of only about 0.01 density 
unit, at
> best, which is not worth the extra effort it takes to optimize a 
dual black
> system.  So, I'm abandoning the dual Eboni approach.
> 
> Paul
> www.PaulRoark.com

If IJC and QTR work the same as other RIPs, then you should be able 
to adjust the limits to a point where any single channel pushes so 
much ink that it pools on the surface (and may form large drops 
running down the paper). If you put too much ink down, you of course 
lose density. I've noticed that Eboni tends to lose density pretty 
fast when you go too far, then it will "fold" over and turn gray as 
you put more ink on paper. Shortly after that limit is exceeded it 
will start to pool and then run. The new matte black (WJ 1082) has a 
wider range where it doesn't lose density, and may show small 
increases in density all the way out to a "true" 100 % (at least on 
my 9500 & on certain papers).

WARNING, the manufacturer does not suggest diluting with the 
same "liquid" that you can use with the other "colors". This suggests 
that mixing it with the blue or cyan ink may not be a good idea. 
Might be best to let the RIP handle that mixing as it sprays ink onto 
the paper.