Enable Epson Open Platform so that you can use the device from the authentication system.
On a computer connected to the same network as the printer, open a browser and enter the printer's IP address.
You can check the printer's IP address using the following menu.
Enter the administrator password to log in as an administrator.
Select the following menu.
Epson Open Platform tab > Product Key or License Key
Enter a value for each item.
Click Next.
A confirmation message is displayed.
Click OK.
The printer is updated.