• Code: 306
• Description: Charge AC bias error [C]
  The charge current less than 200 mkA is detected.
• Causes: Defective charge roller. Defective connectors. Disconnected harness. Defective high voltage power 1.
• Remedy: 1. Check the connectors. 2. Replace the PCU for cyan. 3. Replace the drum positioning plate. 4. Replace the high voltage power 1.

• Code: 307
• Description: Charge AC bias error [Y]
  The charge current less than 200 mkA is detected.
• Causes: Defective charge roller. Defective connectors. Disconnected harness. Defective high voltage power 1.
• Remedy: 1. Check the connectors. 2. Replace the PCU for yellow. 3. Replace the drum positioning plate. 4. Replace the high voltage power 1.

• Code: 325
• Description: Color development motor error
  LOCK signal is not detected for more than two seconds while the motor START signal is on. LOCK signal is not cancelled within two seconds after the motor is off.
• Causes: Color development motor slip due to the increase of the load torque
• Remedy: 1. Adjust the load torque properly by replacing or cleaning the development unit. 2. Replace or repair the development motor if the load torque is normal

• Code: 360
• Description: TD sensor: Output maximum error [K]
  Vt is more than the maximum value (4.5) for three times consecutively.
• Causes: Defective connector connection. Increasing toner density.
• Remedy: 1. Replace the PCU.

• Code: 361
• Description: TD sensor: Output maximum error [M]
  Vt is more than the maximum value (4.5) for three times consecutively.
• Causes: Defective connector connection. Increasing toner density.
• Remedy: 1. Replace the PCU.

• Code: 362
• Description: TD sensor: Output maximum error [C]
  Vt is more than the maximum value (4.5) for three times consecutively.
• Causes: Defective connector connection. Increasing toner density.
• Remedy: 1. Replace the PCU.

• Code: 363
• Description: TD sensor: Output maximum error [Y]
  Vt is more than the maximum value (4.5) for three times consecutively.
• Causes: Defective connector connection. Increasing toner density.
• Remedy: 1. Replace the PCU.

• Code: 364
• Description: TD sensor: Output minimum error [K]
  Vt is less than the minimum value (0.5) for three times consecutively.
• Causes: Defective connector connection. Decreasing toner density
• Remedy: 1. Replace the PCU.