Digital BW, The Print

In the nozzle check, the lower left hand block had big gaps. I used 
Fantastik to clean the sponges and everything else in sight. Doesn't 
help. It prints out with scattered horizontal ink splats all over the 
page when I print the alignment setting. This printer is almost 3 
years old and has only had MIS quadtone inks in it. Can anyone 
experienced with the 3000 help? I've spent 2 days on this, to no 
avail. Thanks. Arlene