Digital BW, The Print

I recently replaced the K Eboni ink catridge in an epson 1400 with the Eboni 6 inkset. The black was the only cart that was empty. But now the computer says all of the other carts are empty, or just not there. 

It has been suggested that this is a chip mismatch. I have another E6 cart I just got at the same time, should I try the other Black cart? I hate to just unseal another one if that will not possible help.

Do the carts all have to changed together? Good grief, that would be a drag.

Can't call MIS until Tuesday.