• Code: 54.16
• Display: 54.XX ERROR
• Description: An error has occurred with one of the tonerlevel sensors
  Magenta
• Remedy: 1. Make sure that connector J1020 on the DC controller is seated correctly. 2. Replace the memory-controller PCA. 3. Replace the DC controller.

• Code: 54.17
• Display: 54.XX ERROR
• Description: An error has occurred with one of the tonerlevel sensors
  Cyan
• Remedy: 1. Make sure that connector J1020 on the DC controller is seated correctly. 2. Replace the memory-controller PCA. 3. Replace the DC controller.

• Code: 54.18
• Display: 54.XX ERROR
• Description: An error has occurred with one of the tonerlevel sensors
  Black
• Remedy: 1. Make sure that connector J1020 on the DC controller is seated correctly. 2. Replace the memory-controller PCA. 3. Replace the DC controller.

• Code: 55.XX.YY
• Display: 55.XX.YY DC CONTROLLER ERROR
• Description: A communication error between the DC controller and the formatter has occurred.
• Remedy: 1. Turn the printer off. 2. Reconnect the connector between the DC controller and the formatter. 3. Replace the DC controller.

• Code: 57.04
• Display: 57.XX PRINTER ERROR
• Description: A printer fan error has occurred.
  Main fan
• Remedy: 1. Check that connector J1008 on the DC controller is seated correctly. 2. Replace the fan. 3. Replace the DC controller.

• Code: 57.06
• Display: 57.XX PRINTER ERROR
• Description: A printer fan error has occurred.
• Remedy: 1. Check that connectors J802, J823, and J850 on the duplex-driver PCA are seated correctly. 2. Replace the fan. 3. Replace the duplex-driver PCA.

• Code: 59.30
• Display: 59.30 ERROR
• Description: An error occurred with the fuser motor during startup or rotation.
• Remedy: 1. Check that connectors J5008 on the fuser motor and J213 on the driver PCA are seated correctly. 2. Replace the fuser. 3. Replace the DC controller.

• Code: 59.40
• Display: 59.40 ERROR
• Description: An error occurred with the fuser motor during startup or rotation.
• Remedy: 1. Check that connectors J5008 on the fuser motor and J213 on the driver PCA are seated correctly. 2. Replace the fuser. 3. Replace the DC controller.