Digital BW, The Print

My Epson 2200 dedicated to color printing --- I have one dedicated to  
UT3-d monochrome too --- seems to be terminal (sudden loss of various  
colors in mid-print, draining of the magenta cartridge after only  
three prints...), so I've order an R1800.

I plan to use Paul Roark's "pure carbon" setup for B&W with the 1800,  
which makes it possible to print colour as well.

The question:  Is there any reason why I cannot use color inks  
designed for the 2200 in the 1800 as long as I can profile the system?

I have a significant quantity of MIS Pro inks for the 2200, and it  
would be a shame to waste them. I am perfectly content with their  
appearance, and normally print on matte papers.

Myron