• Code: SC425
• Description: Potential sensor error 6: Vl adjustment M
  Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
• Causes: • Drum worn • LD unit dirty • Poor drum ground connection

• Code: SC426
• Description: Potential sensor error 7: Vl adjustment C
  Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
• Causes: • Drum worn • LD unit dirty • Poor drum ground connection

• Code: SC427
• Description: Potential sensor error 8: Vl adjustment Y
  Vpl could not be adjusted to within +-5V of the target Vpl after exposure of the ID sensor patterns.
• Causes: • Drum worn • LD unit dirty • Poor drum ground connection

• Code: SC432
• Description: Potential sensor error 1: Vr K
  Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC433
• Description: Potential sensor error 2: Vr M
  Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC434
• Description: Potential sensor error 3: Vr C
  Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC435
• Description: Potential sensor error 4: Vr Y
  Vr > 200V. The residual voltage (Vr), the amount of voltage that remains on the surface of the drum after the QL fires is greater than 200V.
• Causes: • Potential sensor dirty • Potential sensor defective • Charge roller defective • Charge power pack defective • OPC defective

• Code: SC436
• Description: Potential sensor error: Vd K
  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