Specifications︰ 1.HPP81:
C4930A 680ML/C4931A /680MLC4932A 680ML/C4933A 680ML/C4934A 680ML/C4935A 680ML
2.1.HPP81:
C4940A 680ML/C4941A /680MLC4942A 680ML/C4943A 680ML/C4944A 680ML/C4945A 680ML

Advantages︰ 1. with one time resettable chip;
2.using dye ink;
3. transparent cartridge