• Code: F040
• Description: Control PWB engine communication error
• Causes: Defective control PWB.
• Remedy: Turn the main power switch off/on to restart the printer. If the error is not resolved, replace control PWB.

• Code: F041
• Description: Control PWB - scanner PWB communication error
  A communication error is detected.
• Causes: Defective control PWB or scanner PWB.
• Remedy: Turn the main power switch off/on to restart the machine. If the error is not resolved, replace control PWB or scanner PWB.

• Code: F050
• Description: Control PWB engine checksum error
• Causes: Some error may have occurred when downloading the firmware of the control PWB.
• Remedy: Some error may have occurred when downloading the firmware of the control PWB. Download the firmware of the control PWB again.
  Defective control PWB. Turn the main power switch off/on to restart the printer. If the error is not resolved, replace control PWB.

• Code: F186
• Description: Control PWB video data control error
• Causes: Defective control PWB.
• Remedy: Defective control PWB. Turn the main power switch off/on to restart the printer. If the error is not resolved, replace control PWB.