• Code: E019-0000
• Description: Waste toner full detection
  The waste toner full state was detected.
• Remedy: Replace the drum unit.

• Code: E019-0001
• Description: Waster toner full detection sensor failure
  The waste toner full state was detected continuously for five or more seconds while the main motor was turning.
• Remedy: - Check the connector of the waster toner full sensor. - Replace the waste toner full sensor. - Replace the DC controller PCB.

• Code: E052-0000
• Description: Duplex unit connection error
  Disconnection of the duplex unit was detected after power-on, detection of normal connection to the duplex unit, and start of communication.
• Remedy: - Check the connectors of the duplex unit and DC controller PCB. - Replace the duplex controller PCB. - Replace the DC controller PCB.

• Code: E100-0000
• Description: BD detection PCB failure
  The BD detection PCB is faulty.
• Remedy: - Check the connector of the BD detection PCB. - Replace the laser scanner unit. - Replace the DC controller PCB.

• Code: E197-0000
• Description: Printer engine communication error
  Erroneous communication between the DC controller PCB and image processor PCB was detected.
• Remedy: - Check the connectors of the DC controller PCB and image processor PCB. - Replace the DC controller PCB for normal connection. - Replace the image processor PCB.

• Code: E500-0001
• Description: Finisher communication error
  Data communication could not be performed normally. It has been retried three times in vain.
• Remedy: - Check the connectors of the finisher controller PCB and DC controller PCB for normal connection. - Replace the finisher controller PCB. - Replace the DC controller PCB.

• Code: E520-0001
• Description: Offset motor or finisher controller PCB failure
  Offset HP sensor failure
  - The offset motor was driven for 1000 ms in the HP sensor approach direction, but the offset HP sensor did not turn on.
• Remedy: - Check the connector of the offset HP sensor. - Check the connector of the offset motor. - Replace the offset HP sensor. - Replace the offset motor. - Replace the finisher controller PCB.

• Code: E520-0002
• Description: Offset motor or finisher controller PCB failure
  Offset HP sensor failure
  - The offset motor was driven for 1000 ms in the HP sensor escape direction, but the offset HP sensor did not turn off.
• Remedy: - Check the connector of the offset HP sensor. - Check the connector of the offset motor. - Replace the offset HP sensor. - Replace the offset motor. - Replace the finisher controller PCB.