Uses the outside ink cartridge instead the original inside ink cartridge.
Just need to add the relative ink when the ink is used out.
Put the cartridge back into the printer and ink level will indicate full again.
It will save you up to 80%.

Get rid of cost on changing the chip.
No sponge refill ink cartridge.
Balance space to keep up the air pressure.
Ensure consistent and reliable output.
Service, technology guarantee.

An Environmentally Preferable Product.