If the printer has worked flawlessly so far and now suddenly throws this error, this suggests a failure of an electrical component. Either a component itself or the wiring to it.
See Timeout with MCU / Lost communication with MCU
If the printer has worked flawlessly so far and now suddenly throws this error, this suggests a failure of an electrical component. Either a component itself or the wiring to it.
See Timeout with MCU / Lost communication with MCU