5pcs Black refill kits for HP 304xl HP 304 Black Ink Cartridges
5 pcs Black DIY Refill Kit 150ml ( with screw driver, instruction guide all nesscary tools)
Download refill instruction of HP 304XL 304 Black
Item Description
How it works
Buy a new cartridge or refill the old one?
Most of the people hesitate to refill the ink cartridges when it is out of ink. They think that it is too complicate. They just buy a new ink cartridge with a very high price. This is a “trap” of the "famous printer manufacturers".
This picture is for reference only. The position of refilling color is different in different ink cartridges. Details will be stated in the instruction guide.
If you require a customized instruction guide for your own ink cartriges, please contact us cs@printenviro.com and tell us your ink cartridges model.