The process of refilling ink containers is even more convenient – containers of different colors have differently shaped refill spouts that fit only one refill hole by the principle of a key lock.
“Key Lock – Unique, error-free ink refill system The Epson 元110 is a next-generation 3-in-1 (printer, scanner, and copier) MFP with front ink refill tanks, ink containers with a built-in spill prevention valve, and an advanced “Key Lock” refilling system. Epson EcoTank 元110 drivers for Windows.
How to install the driver for your Epson printer.