Digital BW, The Print

Eric,

>Does MIS Eboni Black in an Epson 7600 allow printing on both glossy and
>matte paper without swapping out inks.

No.  Eboni is very much like Epson UC Matte black, except not as warm.  It
is matte-paper compatible only.  It will rub off of glossy paper unless
sprayed with a fixative.  

It is the Ultra Tone 2 (for 1280) and UT7 (for 2200 and probably 7600) that
allow printing on glossy paper with the Eboni installed.  However, it is the
use of the 2 dark gray inks that make the good glossy black, not the Eboni.
The Eboni black is cut out of the mix when glossy paper is used.

Paul
www.PaulRoark.com 

For UT2 information, curves, and settings see:
http://home1.gte.net/res09aij/