Epson EcoTank Photo ET-8500 Wireless Color All-in-One Supertank Printer - Manual (Page 218)

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Checking the Ink Levels on Your Product
To confirm the actual ink remaining, visually check the ink levels in the product’s ink tanks. Make sure
the ink levels are above the lower line on the ink tanks. If any of the ink tanks are below the lower line, fill
them to the upper line on the ink tank.
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.
As a precaution, perform regular visual inspections of the ink tanks to ensure ink levels do not fall below
the lower line. Continued use of the product when the ink level is below the lower line on the tank could
damage the product.
Parent topic: Checking the Ink and Maintenance Box Levels
Checking Maintenance Box Status on the LCD Screen
You can check the status of your maintenance box using your product's LCD screen.
1. Select the home icon, if necessary.