"QuadToneRIP now supports the 21/2200, 4000 and 76/9600 printers with Epson UltraChrome Inks. The profiles provide metamerism-free Black & White printing with a full range of tones from cool to neutral to warm and sepia."
I don't have the 2200 - though it is looks like I'm getting closer to getting it. But the above site offers a RIP that claims to give non-metamerism Black and White prints with the 2200.
There is a pretty long thread in dpreview on it.