Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB.
Code: F040
Description: Communication error between main PWB and print engine
Causes: Defective main PWB. Defective engine PWB.
Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB. Defective engine PWB. Replace the engine PWB and check for correct operation.
Remedy: Defective engine software. Install the engine software. Defective engine PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace engine PWB.
Code: F278
Description: Power supply in drive system error
Causes: The main power switch was turned off before the machine was shutdown, or a power failure has occurred.
Remedy: Turn on power. (To switch off power, after confirming the data lamp is turned off, perform shut-down on the operation panel, turn power off.)