• Code: F040
• Description: Engine PWB communication error
• Causes: Defective main PWB. Defective engine PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
  Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: F041
• Description: Scanner communication error
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: F050
• Description: Engine ROM checksum error
• Causes: Defective engine PWB.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: F060
• Description: Engine RAM error
• Causes: Defective engine PWB.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: F070
• Description: Flash ROM error
• Causes: Defective flash ROM.
• Remedy: Defective flash ROM. Replace the engine PWB and check for correct operation.

• Code: F080
• Description: Flash ROM error (during download)
• Causes: Defective flash ROM.
• Remedy: Defective flash ROM. Replace the engine PWB and check for correct operation.

• Code: F090
• Description: Fax control PWB communication error
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: F14F
• Description: Power source PWB secondary side error
• Causes: Defective power source PWB.
• Remedy: Defective power source PWB. Replace the power source PWB and check for correct operation.