My mom used to have an HP inkjet with an ink subscription. It stopped working and so she asked me to trouble shoot it. I did a factory reset (per the employee written intrusions on the HP forum) and when I booted it back up, it refused to use the ink cartridges inside of it. Turns out factory resetting it made it think the ink cartridges inside of it were not connected to her HP subscription. And because the printer last reported it has plenty of ink, she couldn’t get new cartridges from HP. When I called HP to try to get it resolved they said I would have to pay for someone to come out and fix it.
I will never buy anything from HP again, even if it’s an ecotank.