Digital BW, The Print

I recently bought a set of MIS inks & cartridges for the Epson 2200 
(using the Eboni matte black).  When the black Epson cartridge hit 
empty I filled the MIS cart per instructions (& reset the chip) and put 
it into the 2200.  No success; the red light still shows that cartridge 
position empty.  Took it out - primed it again - reset chip again but 
without success.  Checked that the printer screen shows the Matte Black 
option hightlighted - it does.  Has anyone had this problem?  Is this 
just a faulty cartridge?  I haven't yet tried any of the other MIS 
cartridges in the 2200 and now wonder if I should just stick with the 
Epson carts (put in a new Epson black cart and it's working fine).  
Thanks,  Edward