Digital BW, The Print

Ernst Dinkla <edinkla@...> wrote:

...
> 
> With the 9000 + my own CIS loaded with MIS VM and the 10000 
> with MIS 7600 the least of my problem was actually the 
> Eboni. 

Full strength, 100% Eboni is not really a serious problem.  I'm not 
sure if it stays in suspension better at the higher loads (some 
electrostatically stabilized pigments appear to) or if its just that 
at that high pigment load the load-to-print density relationship is 
so non-linear that we don't notice the changes.

> The PK and lighter shades were worse on the 9000, the 
> ML and the Y on the color model.

I've rather assumed that the weaker a color pigment is, the larger 
they grind the particles in an attempt to offset the oxidation rate 
with size.

One thing I used to do is just put a drop of the dense ink into the 
base and see if there was visible settlement.  Both MIS M and Epson 
UC M showed settlement at the bottom of the test tube.  Eboni did not.

>... the Eboni channel could be kept open quite well.

I continue to favor Eboni in the K position.  I think it's a great 
MK, but I just do not know how to keep it stable *when diluted* (nor, 
apparently, does MIS and its supplier).  Again, in the desktop 
printers, this is really not an issue.

Paul
www.PaulRoark.com