Digital BW, The Print

Well, finally....and I mean... FINALLY, the UT7 inks I purchased for 
my 2200 are working. What a relief and what a learning 
curve...geeesh!! 

And just as everyone said, they produce great quality black and white 
prints. One thing though, I've been experiencing a lot of vertical 
banding which seems to be easily corrected by the nozzle cleaning 
control on the 2200. In fact, after each print I run a nozzle check 
once or twice to make sure there are no missing segments on the test 
pattern. Otherwise, the prints come out faded with banding.

This never happened with UC inks.

Is there something about the UT7 inks that cause this?