• Code: SC390
• Description: CRC error
  Electrical noise causes sent data and received data to differ. A CRC check can detect this error.
• Causes: • Defective connection board • Defective or disconnected interface cable

• Code: SC391
• Description: Image storage address error
  The SBICU receives an image data output request signal for data that is not stored in memory.
• Causes: • SBICU defective

• Code: SC400
• Description: Transfer roller leak error
  A transfer roller current leak signal is detected.
• Causes: • Transfer P.P. defective • Poor connection between the transfer current terminal and the transfer P.P.

• Code: SC401
• Description: Transfer roller open error
  The transfer roller current feedback signal is not detected
• Causes: • Transfer P.P. defective • Poor connection between the transfer current terminal and the transfer P.P.

• Code: SC430
• Description: Quenching lamp error
  When finishing the process control initial setting, the drum potential which is detected by the drum potential sensor is out of the normal range
• Causes: • Quenching lamp defective • Poor connection between quenching lamp and charge power pack

• Code: SC440
• Description: Main motor lock
  The main motor lock signal remains low for 2 seconds while the main motor is on.
• Causes: • Too much load on the drive mechanism • Main motor defective

• Code: SC441
• Description: Development motor lock
  The development motor lock signal remains low for 2 seconds while the development motor is on.
• Causes: • Too much load on the drive mechanism • Development motor defective

• Code: SC493
• Description: Exhaust fan motor lock
  The exhaust fan motor lock signal remains high for 5 seconds while the exhaust fan motor is on.
• Causes: • Exhaust fan motor defective • Too much load on the fan