Toner Name: C-EXV17; Code: Black 026B002AA; Cyan 0261B002AA; Magenta 0260B002AA; Yellow 0259B002AA; Durability: Black 26,000; Cyan 30,000; Magenta 30,000; Yellow 30,000 based on 20%total coverage; 4 cartridges in packaging box at weights 495g/550g per cartridge; For use in iRC4580i / iRC4080i machines.