• Code: 55.3
• Display: 55.X Error
• Description: Engine communication error
• Remedy: 1. Turn the product off and on. If the problem remains, replace the DC controller PCA.

• Code: 55.4
• Display: 55.X Error
• Description: Engine timeout error
• Remedy: 1. Turn the product off and on. If the problem remains, replace the DC controller PCA.

• Code: 56.X
• Display: 56.X Error
• Description: Tray <X> not correctly installed.
• Remedy: Reinstall the tray.

• Code: 57.01
• Display: 57.01 Error
• Description: Power supply fan (FM1) is defective.
• Remedy: 1. Reconnect the connector (J21) on the DC controller PCA and the connector (J106) on the low-voltage power supply unit. 2. Measure the voltage between the connector J21-2 and J25-2 on the DC controller PCA right after the product is turned on. If the voltage changes from 0 V to approximately 24 V, replace the power supply fan.

• Code: 57.02
• Display: 57.02 Error
• Description: The fuser fan (FM2) is defective
• Remedy: 1. Reconnect the connector (J121X) on the DC controller PCA and the intermediate connector (J524). 2. Measure the voltage between the connector J121X-6 and J121X-4 on the DC controller PCA right after the product is turned on. If the voltage changes from 0 V to approximately 24 V, replace the fixing fan.

• Code: 58.04
• Display: 58.04 Error
• Description: Low-voltage power supply malfunction.
• Remedy: 1. Turn the product off and then on. 2. Verify that connectors J21 and J25 on the DC controller PCA are correctly seated. Also verify that all connectors on the lowvoltage power supply are correctly seated. 3. If the problem remains, replace the low-voltage power supply.

• Code: 59.3
• Display: 59.X Error
• Description: The product has experienced a problem with one of the motors.
  - Fuser motor startup error
• Remedy: 1. Reconnect the connector (J516) on the fuser motor and the connector (J81) on the DC controller PCA. 2. Run the fuser motor drive test in the actuator drive mode to verify that the fuser motor is functioning correctly. If it is not, replace the fuser motor unit.

• Code: 59.4
• Display: 59.X Error
• Description: The product has experienced a problem with one of the motors.
  - Fuser motor rotation error.
• Remedy: 1. Reconnect the connector (J516) on the fuser motor and the connector (J81) on the DC controller PCA. 2. Run the fuser motor drive test in the actuator drive mode to verify that the fuser motor is functioning correctly. If it is not, replace the fuser motor unit.