Epson ET-4550 User Manual page 198

9. Repeat the previous steps as necessary for each ink tank you need to refill.
10. Close the ink tank unit cover.
11. Press the OK button twice.
You see this screen:
12. Press the left or right arrow buttons to highlight the ink tank you refilled and press the OK button to
select it. Repeat for each ink tank color you refilled.
13. Press the Color button when you are done to reset the ink levels.
Note: The product has a low ink alert system. The accuracy of this system depends on the user
refilling the ink tanks correctly. The product cannot directly measure the ink levels in the tanks;
instead it estimates the amount of ink remaining by internally monitoring ink usage. The low ink alert
system may generate inaccurate messages if the ink tanks are not refilled according to these
instructions.
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