Of course I have to buy this to keep the printer working. that said, LOVE my HP 3000-J310 printer. It's a workhorse and I've had it a very , long time, so of course I buy the only ink that will fit in it.
Too expensive, you got everybody over a barrel cuz you know they need this ink in this printer. Nothing else will work. Cartridge is not even full when you get it. Doesn't last as long as it should.