Digital BW, The Print

Hey, I've got a problem and hope someone can help.  

I just received my MIS UT-R2 inks and R220 printer.  I followed the
installation instructions but when I closed the ink cover after
installing the R2 inks - nothing happened.  The power light contined
flashing and the red ink light was solid.  

It seems to me the most likely thing is that the printer doesn't
recognize the cartridges.  I haven't yet tried it with the epson
cartridges because I wanted to sell them...

Anyone got any ideas? 

Brian