Computer Help and Support

And have never seen that message. I've used non-Brother cartridges too - never been a problem.

If, as you say you have used these cartridges to print before - does that mean that you have inserted them in the printer then removed them?

If so, the ink may have dried up around the point of transfer from cartridge to printer. Iso alcohol can clean up printing ink, so I'd be giving this a go. I've also had success with a 15c diabetic syringe filled with iso alcohol squirted into the printer ink jets. It's a bit messy but cleans up readily and after several clean-up prints, brought back to life an old brother printer that hadn't been used for years. Good luck.