When this error appears it means that the print head and electronics cannot communicate (properly) with each other. This is most likely due to a connection problem of the print head cable to either the print head or electronics.
If this occurs, it may be that there is a loose connection. Please check that:
- All wires connected to the print head are securely fixed and in good order
- The connections on the motherboard are secure
If the problem persists, please raise a ticket above.