Digital BW, The Print

Hi all.... I've been printing on a 2200 for about a year and a half now, and have been using 
the UT7s since they were made available for this printer.  Suddenly I'm noticing 
microbanding.  The nozzle checks are perfect except on the second pattern from the right 
(is this the LM cart?) there is a disruption:  one of the little diagonals, at one end, doesn't 
join it's neighbor, as if it's bent down.  Only the one.  Is this possible the cause of the 
banding?  And if so, what to do about it?

Ed