Suitable to: Epson 4880,7880,9880,7450,9450etc Wide format printers.
Chain up Ink capacity method :

(1) Install cartridge and wait machine detected.
(2) Press down key five times and show (YES/NO)，
(3) Press left key one time and show （DAM），
(4) Press down key five times and show （ACPT），
(5) Press left key then can use.