You would seen to have a case for complaint, but then you are also, as the user, expected to pay some degree of attention to what you are doing, as so far as making sure it it the right part.
As to where this line is legally drawn i would not like to say.
But this does show the danger of non genuine parts, whether they be for a printer or any other item.
Several years ago Vauxhall got a bad name for suspension parts breaking, but it eventually turned out that they were fakes, with very good fake labels stuck on, so they looked like the real thing. But they were not the real thing, and they were pants, and they broke.
If i knowingly buy a non genuine item and it goes bad on me then that is really down to me. no-one made me buy the non genuine part, and that's the risk you take.