How to refill original cartridges HP-970 and HP-971

Video tutorial how to refill original cartridges HP-970 e HP-971.
The specific Inktec pigment ink you can find from the next link www.stampaconti...
When the OEM HP-970/971 is finished this messagge wil compare "continue to print?" press YES.
Also empty cartridges without ink can be filled with new specific pigment ink.
This message can compare "cartridge counterfeit or used" press NO because we use used recycled cartridge and not countrafeit. You can see the screenshot from the next link. (Attention, if you rpess YES, the printer will forget forever that cartridge)
www.stampaconti...
You can buy CISS for this link. www.stampaconti...
Speed test - • Servizio di stampe online
• Installazione Ciss con...