I have also been a previous speaker as the false, the cartridges t089x instead of sand delivered t071x who patornen t089x a smaller volume, that is, they are not as durable. Since the cartridges fit with me in the printer I sat down with the senders on an agreed discount instead of the cartridge back and forth to send, I advise everyone the wrong cartridges are sent to call the hotline. They have apologized and offered on its own initiative a discount or an exchange. but still it's annoying.