Digital BW, The Print

Hi all, 

After a quite long time without using my 1400 (equiped with Eboni), I
had to make a strong service on it: change carts, flush heads. All
nozzles came back on track except the K head. After many (and many)
tries, I still get absolutely nothing (or some small lines from time to
time) from the K head. 

I run with 6.3 carts from MIS and "old" Eboni. 

Any clue? Help! 

Thanks in advance... 

-- 

Sylvain M.