1.Installation method is the same as original cartridge.
2.Because of the unstable quality of HP 5000/5500 auto reset chip, please match with our HP electronic card for use.
3.Don't install 3 sets cartridge continually, if replace the cartridge, install it after power off.
4.Please use reliable quality ink.

Advantages
Simply use, conveniently refill, stable and reliable quality.
Plug and play types

Product model:

WRH-04930BK
WRH-04931CY
WRH-04932MG
WRH-04933YL
WRH-04934LC
WRH-04935LM