Digital BW, The Print

David,

>> ...(You don't want a position that is not used.)... 

> Did you say this because having an unused position 
>will lead to ink settling/clogging? 

I think there is a risk of this.  There have been a couple of comments here
that the Y position of the UT2-1280 printer is clogged.

Note that if you print with the sliders, that position is used.

>Makes me worry about the sepia position (unused in
>practice) in my 2200/UT setup. Maybe it's not 
>an issue with the 2200...?

I think it is less of a risk with the 2200.  From what I can tell one of the
main differences between printers designed for pigments as opposed by dyes
is that the pigment printers do more routine cleaning cycles.  This might be
enough.  

Still, if you don't use sepia, I've been recommending people put a second
warm (carbon) light gray there -- the UT7 LC (or UT2 LM).  The main
noticeable change is that the prints with the sliders will be a bit more
neutral.  They will also be more lightfast.  The less color pigments in the
mix the better.

Now I'd be looking at Glop in the Y spot if you do glossy printing.  I have
not tested the 2200 with this ink arrangement, but it seems capable of
eliminating about 90% of the bronzing in the 1280 with appropriate curves.

Paul
www.PaulRoark.com