• Code: SC 405
• Description: Transfer belt error
  The transfer belt does not move away from the drum during ID sensor pattern checking.
• Causes: • Main motor/drive malfunction • Transfer belt position sensor defective • Poor transfer belt position sensor connection

• Code: SC101
• Description: Exposure lamp error
  The standard white level was not detected properly when scanning the white plate.
• Causes: • Exposure lamp defective • Lamp stabilizer defective • Exposure lamp connector defective • Dirty standard white plate • Dirty scanner mirror or scanner mirror out of position • SBU board defective • SBU connector defective • Lens block out of position • SIB defective

• Code: SC120
• Description: Scanner home position error 1
  The scanner home position sensor does not detect the on condition during initialization or copying.
• Causes: • Scanner home position sensor defective • Scanner drive motor defective • SIB defective • Scanner home position sensor connector defective • Scanner drive motor connector defective

• Code: SC121
• Description: Scanner home position error 2
  The scanner home position sensor does not detect the off condition during initialization or copying.
• Causes: • Scanner home position sensor defective • Scanner drive motor defective • SIB defective • Scanner home position sensor connector defective • Scanner drive motor connector defective

• Code: SC302
• Description: Charge roller current leak
  A charge roller current leak signal is detected.
• Causes: • Charge roller damaged • High voltage supply board defective • Poor PCU connection

• Code: SC304
• Description: Charge roller current correction error
  The charge roller bias correction is performed twice even if the maximum charge roller bias (-2000V) is applied to the roller.
• Causes: • ID sensor defective

• Code: SC320
• Description: Polygon motor error
  The polygon motor does not reach its operating speed within 20 seconds after the polygon motor on signal, or the lock signal is still activated for more than 20 seconds after the polygon motor off signal.
• Causes: • Polygon motor defective • Poor connection between the polygon motor driver and the BICU board • BICU board defective

• Code: SC321
• Description: No laser writing signal (F-GATE) error 1
  The laser writing signal (F-GATE) does not go to LOW for more than 15 seconds after the copy paper reaches the registration sensor.
• Causes: • BICU board defective • Poor connection of the fax controller or printer controller • Fax controller or printer controller defective