Digital BW, The Print

> ... unclear on just what needs to be done in the 
> way of cleaning/purging/etc when changing inks. 
> I'm currently using the UT-R2 ink set, with Eboni.

> What, other than cart replacement, do I need to do to change from:

> 1) Eboni-PK and vice versa in the black position?
> 2) Neutral to warm and vice versa in the color positions?

Nothing needs to be done.

> And while the 220 will probably remain dedicated to B&W, 
> what would I need to do to install the standard epson dye carts?
> And to go from the standard epson dye-based carts back to UT-R2?

Some do nothing.  I find that Eboni can be troublesome if there is dye on
the parking pad.  So, I'd rinse off the pad.

While it's not a compatibility issue, some residual inks are in that head.
The colors will affect the B&W for a while.  I'd print a few purge pattern
pages to clear the head as soon as I changed ink.

Paul
www.PaulRoark.com