You can run
a Power Cleaning using the control panel on your product.
After a Power Cleaning, you must turn off the product
and wait at least 12 hours before running another Power
Cleaning.
Turn off the product.
Visually check the ink levels and make sure each ink tank
is at least one-third full.
Caution:
If you run a Power Cleaning when the ink
levels are low, you may damage the product.
Press and hold the power button and the
help button at the same time
until the Power Cleaning screen appears on the LCD
screen.
Follow the on-screen instructions to run the Power
Cleaning.
When the Power Cleaning is
finished, run a nozzle check. If the print quality did not
improve, turn off the printer and wait at least 12 hours before
running another Power Cleaning.
If the print quality does not improve after running
the Power Cleaning utility multiple times, contact Epson for
support.