To fix an HP ink cartridge error, try these steps: remove and reinsert the cartridge to ensure it's properly seated. Clean the contacts on both the cartridge and printer with a lint-free cloth lightly moistened with distilled water. Restart the printer and check for firmware updates on the HP website. If the issue persists, try using a different cartridge to determine if the problem l... https://medium.com/@sofiarozer6/how-do-i-know-what-ink-cartridge-i-need-in-my-hp-printer-423f677d51f9