Code :
- Code: F050
- Description: Print engine ROM checksum error
- Causes: Defective engine PWB.
- Remedy: 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: Main power switch was turned off without using the power key, or a power failure has occurred.
- Remedy: Turn on power. (To switch off power, first press the power key, then turn the main power switch off.)