Hello Bernie,
>has someone experienced a difference in black only printing on the
>2100 between the original Epson inks and the UT7 inks/ Eboni black?
>Is one of the two giving smoother results than the other?
Yes. My experience is that the Photo Black gives the smoothest tones.
Matte Black is a bit more grainy looking, and Eboni is even a bit
more than MK. I'm not sure why that is, perhaps particle size...
Also, the driver has two different dot algorithms. For example, when
I make a print on thin paper using the top feeder, it uses a
single-dot pattern. But with thick paper via the manual feeder, each
dot is actually a pair of tiny dots close together, and the general
dither pattern is a bit different.
I use Eboni with a 2200.
Regards,
Clayton
Info on black and white digital printing at
http://www.cjcom.net/digiprnarts.htm