Why is my printer not recognizing the correct ink or toner cartridges?

1. Check that the ink or toner cartridges are correct for your printer model.
2. Reboot the printer.
3. Check that the contact points on the ink or toner cartridge and the printer are clean and free of debris.
4. Verify that the printer is on the latest firmware version.
5. Check that the printer is configured for your region.
6. Try installing the ink or toner cartridge again.