Digital BW, The Print

> Could you provide more info on "It uses no crossovers and no dilute inks."

With the 100%, 3-channel Eboni setup, all the inks for B&W are 100% Eboni.
There are no light inks.  Recall that the R800 also uses no light color
inks.  The 1.5 pl dot is so small light inks are not needed for highlight
smoothness.

If there are no light inks, and the ink that is used for the highlights can
also be used for the darkest black, the curves go from their 0 or off points
to their top loads at the 100% black.  No curve every goes into a negative
slope.  Where there are light inks in other systems, like the standard Epson
hextone drivers, the light inks are used for the highlights, but then they
are turned off as the darker inks are turned on for the more dense parts of
the image.  This is a "cross-over" between the light and dark inks.  These
transitions are the tricky and difficulty parts of most profiling jobs where
the different density inks have to be carefully coordinated so that flat
spots in the ramp don't result.  

There simple are no cross-overs in the system I'm now using.  As such the
profiling is easier and the curves will be more reliable.

Note what happens to the quality control issues.  They virtually disappear.
There is no ink mixing by intermediaries.  There are no problems with
different batches of color inks being slightly off, because there are no
color inks involved.

I might add that the purist B&W types might want to run 3 or 4 Eboni
channels and the rest just filled with cleaning fluid.  If a nozzle check is
not good, just swap channels -- put a cleaning cart in the clogged one and
put Eboni in one of the spares that has had cleaning fluid in it. 

Paul
www.PaulRoark.com