In the middle of printing, the lights started blinking and I got error code 1684: above (BK) ink tanks cannot be recognized.
The cardridge was not empty and it was working fine all this time. I followed all instructions available online (resetting, cleaning head and connections, unplugged from power source for 10 minutes, reinstalled cartridges, held down power button, etc. etc.). I even bought a new (canon) cartridge, but that one was also not recognized. I also followed a couple instructions found here with similar issues on different printer.
How can I resolve this issue, the printer works fine otherwise and is not ready for the dump (bought in 2020).
