How to Make Generic Ink Cartridges Work on an HP Printer
HP have updated their printers to outright ban 'non-HP' ink! They no longer shows the “can't guarantee quality” message, but instead cancels your print completely until you inset a HP ink cartridge.
Are Epson® EcoTank® Printers Worth the Money? – Printer Guides and Tips from LD Products
HP printers still block third-party ink. These ones have a workaround | PCWorld
Name Brand vs. Remanufactured vs. Compatible Printer Cartridges – Printer Guides and Tips from LD Products