Checks / troubleshooting:
1. Are Ink cartridges used dedicated ink
cartridges?
2. Is the message displayed after turning off the
printer and turning it back on?
3. Check if there are ink cartridges in the self-
diagnosis function to see if the ink cartridge
displayed is the same one with the error.
4. Check the connection of the connector of I/C
cable.

Recommended actions:
Instruct the user to use the dedicated ink
cartridges.