HP Designjet T120, Designjet T520
Includes of:

1 x Genuine HP No.711 Cyan Tri Pack Ink [3 Cyan] - 29ml each

 

711 is being phased out and will no longer be manufactured. 711B is the replacement of 711.
Latest version of printer firmware is required to use the 711B. If the problem persists, please contact HP directly to get the cartridge works.