• Code: 641
• Description: BICU control data transfer abnormal
  A sampling of the control data sent from the BICU reveals an abnormality.
• Causes: • Controller board defective • External noise • BICU board defective

• Code: 670
• Description: Engine response error
  After powering on the machine, a response is not received from the engine within the specified time.
• Causes: • BICU installed incorrectly • BICU defective • Controller board defective

• Code: 672
• Description: Controller-to-operation panel communication error at startup
  After powering on the machine, the communication circuit between the controller and the operation panel is not opened, or communication with controller is interrupted after a normal startup.
• Causes: • Controller stall • Controller board installed incorrectly • Controller board defective • Operation panel connector loose or defective

• Code: 690
• Description: GAVD block I2C bus error
• Causes: • I2C bus on BICU defective

• Code: 691
• Description: GAVD FCI block I2C bus error
• Causes: • I2C bus on BICU defective

• Code: 692
• Description: CDIC GAVD block I2C bus error
• Causes: • I2C bus on BICU defective

• Code: 700
• Description: ARDF original pick-up malfunction
  After the pick-up motor is turned on, the original stopper HP sensor is not detected.
• Causes: • Original stopper HP sensor (output abnormal) • Pick-up motor defective (not rotating) • Timing belt out of position • ADF main board defective

• Code: 701
• Description: ARDF original pick-up/paper lift mechanism malfunction
  The original pick-up HP sensor does not activate three times consecutively after the pick-up motor has turned on.
• Causes: • Original pick-up HP sensor defective. • Pick-up motor defective • ADF main board defective