Digital BW, The Print

Hello Julio, 
> Anyone out there with experience of printing B&W with the 2400 and
> Imageprint RIP? Any improvement from the the 2200 with the same RIP?

Short answer:  Yes!

Longer answer: You'll get the K3 ink advantages of the 2400.  You'll
get the Imageprint advantages of truly no metamerism (no yellow ink
used), great dither and a tinted-BW system with real soft-proofing. 
Alas, IP6 "Lite" on Windows Xp Pro can't use the 2400 single-sheet
feed or the front-fed thick-media functions at my house.  Only the top
sheet feeder which means the 2400 struggles with thick paper. 
Colorbyte a very fair price for the 2400 IP6 Lite as an "add-on" to 
ownership of the 2200 RIP.  Their profiles for the 2400 are as superb
as they are for the 2200.  In my very dry climate, the K3 inks in the
2400 behave better than the 2200 inks.

I suspect sensitivity to metamerism problems varies with the person. 
It's like the mixed blessing of perfect pitch. I find Epson's ABW
doesn't quite make the grade like IP6 (tho ABW is a great function and
deserves praise)I don't feel the need to go to IP7 (yet). 

It's only money!  :0)

Will Clark