We need:
Push white part to unblock the carriage (r260)
Place the plate on the cap.
Place paper towel.
pour on paper towel with cleaning liquid
Place the carriage back to the parking place for 3-4 hours.
Repeat this 2-4 times.
This is the very simple and effective method.
I am...
If you print a lot - you have to install CISS. But you needd to use very high quality inks.
You can use original Epson inks also.
Buy 250 ml cartriges for EPson Pro series and use that inks in CISS.
That is realy best solution.