Epson ME OFFICE 900WD Basic Operation Manual page 35

F
Check the pattern.
Q
Select the color that shows a
defect in the nozzle check result.
I
Finish head cleaning.
G
Select Head Cleaning and proceed.
Q
If print quality does not improve, make sure you selected the appropriate
color in step H according to the nozzle check result. If quality does not
improve after cleaning four times, turn off the printer for at least six hours.
Then try cleaning the print head again. If quality still does not improve,
contact Epson support.
H
Select an item and start cleaning.