• Code: SC437
• Description: Potential sensor error: Vd M
  The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC438
• Description: Potential sensor error: Vd C
  The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC439
• Description: Potential sensor error: Vd Y
  The VdHome reading, the first step of the process control self-check, detected that the development potential of the unexposed areas of the drum are not within the prescribed range (-500 to -800)
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC440
• Description: Image transfer power pack error: K
  An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
• Causes: • Transfer belt damaged, insulation damaged • Insulation on high voltage cable damaged • Another hot point inside the machine has damaged insulation • Insulation around high-voltage power supply damaged

• Code: SC441
• Description: Image transfer power pack error: M
  An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
• Causes: • Transfer belt damaged, insulation damaged • Insulation on high voltage cable damaged • Another hot point inside the machine has damaged insulation • Insulation around high-voltage power supply damaged

• Code: SC442
• Description: Image transfer power pack error: C
  An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
• Causes: • Transfer belt damaged, insulation damaged • Insulation on high voltage cable damaged • Another hot point inside the machine has damaged insulation • Insulation around high-voltage power supply damaged

• Code: SC443
• Description: Image transfer power pack error: Y
  An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the power pack for K, M, C, or Y.
• Causes: • Transfer belt damaged, insulation damaged • Insulation on high voltage cable damaged • Another hot point inside the machine has damaged insulation • Insulation around high-voltage power supply damaged

• Code: SC445
• Description: Image transfer motor error
  The control board of the ITB motor belt generated signals that indicate there is problem with the image transfer belt motor.
• Causes: • ITB motor defective • ITB control board defective • ITB overloaded • Encoder strip on the edge of the ITB damaged.