• Code: SC494
• Description: Fusing exhaust fan motor lock
  The fusing exhaust fan motor lock signal remains high for 5 seconds while the fusing exhaust fan motor is on.
• Causes: • Exhaust fan motor defective • Too much load on the fan

• Code: SC495
• Description: Toner recycling unit error
  The toner recycling sensor output signal does not change within 500 ms after the main motor turns on.
• Causes: • Too much load on the drive mechanism • Toner end sensor detective • Poor connection on the sensor connector

• Code: SC496
• Description: Toner collection bottle error
  The toner collection bottle set switch remains off when the front door is closed.
• Causes: • No toner collection bottle • Poor connection on the switch connector

• Code: SC497
• Description: Toner recycling motor error
  The toner recycling motor connector set signal remains off for 1 second.
• Causes: • Toner recycling motor defective • Poor connection on the motor connector

• Code: SC501
• Description: 1st tray lift malfunction
  • The lift sensor is activated before the pick-up solenoid is activated when the tray is pushed in. • The lift sensor is not activated within 10 seconds after the tray lift motor starts lifting the bottom plate. • The lift sensor remains activated for 1.5 seconds after the tray lift motor starts lowering the bottom plate. • The tray down sensor is not activated within 10 seconds after the tray lift motor starts lowering the bottom plate because of a paper end condition.
• Causes: • Tray lift motor defective or poor connection • Lift sensor defective or poor connection • Tray down sensor defective or poor connection • Pick-up solenoid defective or poor connection

• Code: SC502
• Description: 2nd tray lift malfunction
  • The lift sensor is activated before the pick-up solenoid is activated when the tray is pushed in. • The lift sensor is not activated within 10 seconds after the tray lift motor starts lifting the bottom plate. • The lift sensor remains activated for 1.5 seconds after the tray lift motor starts lowering the bottom plate. • The tray down sensor is not activated within 10 seconds after the tray lift motor starts lowering the bottom plate because of a paper end condition.
• Causes: • Tray lift motor defective or poor connection • Lift sensor defective or poor connection • Tray down sensor defective or poor connection • Pick-up solenoid defective or poor connection

• Code: SC503
• Description: 3rd tray lift malfunction
  • The lift sensor is activated before the pick-up solenoid is activated when the tray is pushed in. • The lift sensor is not activated within 10 seconds after the tray lift motor starts lifting the bottom plate. • The lift sensor remains activated for 1.5 seconds after the tray lift motor starts lowering the bottom plate. • The tray down sensor is not activated within 10 seconds after the tray lift motor starts lowering the bottom plate because of a paper end condition.
• Causes: • Tray lift motor defective or poor connection • Lift sensor defective or poor connection • Tray down sensor defective or poor connection • Pick-up solenoid defective or poor connection

• Code: SC505
• Description: LCT tray malfunction (optional LCT)
  • The lift sensor is not activated within 60 seconds after the tray lift motor starts lifting the bottom plate. • The tray down sensor is not activated within 60 seconds after the tray lift motor starts lowering the bottom plate. • The lift sensor and tray down sensor are activated at the same time. • The lift sensor is not activated even when the pick-up roller is still lifted up by the top of paper.
• Causes: • Tray lift motor defective or poor connection • Lift sensor defective or poor connection • Pick-up solenoid defective or poor connection • Paper end sensor defective