1.open the cover after the printer is turned on.(dont't touch the cable)
2.Shake before installing a new ink cartridge(don't touch the chip)
3.Tear off the ink cartridge PULL the yellow lable.
4.Install new cartridges in order,pressing down on the cartridge until it clicks.
5.Close the cover and follow the instructions on the display screen.
Compatible Printers :
For HP Designjet T610 For HP Designjet T620 For HP Designjet T770 For HP Designjet T790 For HP Designjet T795 For HP Designjet T1100 For HP Designjet T1100ps For HP Designjet T1100mfp For HP Designjet T1120 For HP Designjet T1120ps For HP Designjet T1200 For HP Designjet T1300 For HP Designjet T1300ps For HP Designjet T2300