I have been having trouble with clogged lines lately. I have been able to clear up the problem with one or two regular cleanings, but then, a couple of days ago, the LM clogged completely and I finally resorted to a power cleaning to get going again. I then was able to print ok until yesterday, when I pulled a 13 X 19 print out and saw that there was bad banding across the lower third of the print. Doing a nozzle check, the LK pattern was completely blank. Subsequent regular cleanings and two power cleanings still haven’t opened it up; just a couple of little dots. I’ve checked the ink level and it’s fine. What do you suggest?