• Code: F040
• Description: Main PWB - print engine communication error
• 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.

• Code: F041
• Description: Communication error between main PWB and scanner engine.
• Causes: Defective main PWB. Defective ISC 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 ISC PWB. Replace the ISC PWB and check for correct operation.

• Code: F050
• Description: Print engine ROM checksum error.
• Causes: Defective engine PWB.
• Remedy: Turn the main power switch off/on to restart the machine. If the error is not resolved, replace engine PWB.

• Code: F051
• Description: Scanner engine ROM checksum error
• Causes: Defective Scanner software. Defective ISC PWB.rror
• Remedy: Defective Scanner software. Install the Scanner software.
  Defective ISC PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace ISC PWB.