If you still see white or dark lines or missing nozzles in your
printouts, even after cleaning the print head several times, you
can run a Power Cleaning.
If you do not see improvement after running a Power Cleaning,
turn off the product and wait at least 12 hours without printing,
then print the nozzle check pattern again. Run Head Cleaning or
Power Cleaning again depending on the printed pattern. If quality
still does not improve, contact Epson support.
Caution:
Running a Power Cleaning consumes a lot of
ink, so you should run it only if necessary. Make sure each ink
tank is at least one-third full before running a Power Cleaning, or
it may damage the product.
Caution:
Power Cleaning may cause the maintenance box
to reach its capacity sooner. When the maintenance box is full, you
need to replace it to continue printing. If the ink levels or the
free space in the maintenance box are insufficient for Power
Cleaning, you cannot run this feature.