We are selling third party brand ink for HP Designjet. They are plug and play and you don't need to change anything or flush the original inks. You can use the same profile and longer life for print  heads. . we can always provide you this inks , it isn't one time sale. This auction is for Hp 5000 -5500 42"-60"  PS or Non PS cartridge (HP 83) The price is for one set, 6 colors.(680 mil each) we are selling inks for for Hp 5000-5500 Dye ,Hp solvent 9000 -10000, Hp 4000,4500, Hp Z6100 and Hp 1050,1055 also. Buyers in Canada Need to pay tax also.