I have one persistent clogged nozzle in the LC that seems to have no effect in prints (see attached nozzle check). I always print a nozzle check pattern before printing. When todays check showed a single clogged nozzle in 5 different inks, I decided to try an experiment and printed a purge file (solid bars of each ink color) with the 5 inks still clogged. All the bars printed perfectly. Cleaning cycles fixed all of the clogs except the LC, which still persists. I have made many prints with the one LC clog with no problems. Should I still try to clear it (a power cleaning cycle did not clear it)? Continue to ignore it and make prints? I am printing on an Epson 4900.