... theink is used up,just refill inks,after installing the cartridge,fluent printing forever. 5 Stability: injection moulding, no air ... towork with oem chip together.No need to buy new cartridge anymore ,only needto refill inksProduct formPart NOproduct categoryPrintCartridge NOVolumeRemarkOC-EW7450TRefillable ... (Y), C13T612800(K),220MLCompatible chipK,C,M,Y, The Refillable Cartridge for Epson 7450 9450