• Code: 572
• Description: Oil overflow sensor error
  The oil overflow sensor power is turned off. The oil overflow sensor does not detect the oil overflow condition.
• Causes: • Defective oil overflow sensor • Defective harness • Defective BICU

• Code: 620
• Description: ADF communication error
  The ADF has been detected. A communication error has occurred.
• Causes: • Loose connection • Defective ADF • Defective BICU board • Defective scanner I/O board • External noise

• Code: 630
• Description: CSS communication error
  The machine tries to communicate with one of the terminals of a relevant service center. An error signal returns.
• Causes: • Communication error on the public telephone network (logged only; the machine can still operate)

• Code: 632
• Description: MF accounting device error 1
  The machine sends a data frame. No normal end signal returns. This symptom happens three times.
• Causes: • Defective or broken line between machine and device

• Code: 633
• Description: MF accounting device error 2
  The machine is communicating with the accounting device. The break signal returns.
• Causes: • Defective or broken line between machine and device

• Code: 634
• Description: MF accounting device error 3
  A backup RAM error is reported from the accounting device.
• Causes: • Defective accounting device controller • Defective battery in the accounting device

• Code: 635
• Description: MF accounting device error 4
  A battery voltage error is reported from the accounting device.
• Causes: • Defective accounting device controller • Defective battery in the accounting device

• Code: 640
• Description: Engine-to-controller communication checksum error
  While the BICU and controller are communicating, a checksum error has occurred.
• Causes: • Logged only; the machine can still operate