My HP story is about a new laptop that had problems since day 1. At 3 months it went to service and never worked again. HP walked on the warranty.
I'm not defending them at all but commenting how the industry and the consumers changed. I can't see where HP didn't try hard here. But there are limits to what they can do without seeing the printer and entire system.
HP didn't sell the Apple computer and Apple didn't make the HP printer so we are left with a no-man's land of support.
-> HP has deep problems as they only need to rip off the wrong person and their will be another suit. I'd join it.