• Code: 55.00.03
• Display: 55.00.03 DC controller error
• Description: DC controller PCA error occurred.
  DC controller no engine response
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the DC controller PCA.

• Code: 55.00.04
• Display: 55.00.04 DC controller error
• Description: DC controller PCA error occurred.
  DC controller communications timeout
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the DC controller PCA.

• Code: 55.01.06
• Display: 55.01.06
• Description: NVRAM memory data error warning
  DC controller PCA error occurred. The engine is not communicating with the formatter. The communication link between the formatter and the DC controller was lost. This can occur due to a timing error or intermittent connection loss between the formatter and the DC controller.
• Remedy: 1. Turn the product off, and then on. 2. Check the life remaining on the maintenance kit. 3. Reseat the formatter, DIMMs, and EIO cards. 4. If the error persists, replace the DC controller PCA. 5. If the error persists, replace the formatter.

• Code: 55.02.06
• Display: 55.02.06
• Description: NVRAM memory access error warning
  DC controller PCA error occurred. The engine is not communicating with the formatter. The communication link between the formatter and the DC controller was lost. This can occur due to a timing error or intermittent connection loss between the formatter and the DC controller.
• Remedy: 1. Turn the product off, and then on. 2. Check the life remaining on the maintenance kit. 3. Reseat the formatter, DIMMs, and EIO cards. 4. If the error persists, replace the DC controller PCA. 5. If the error persists, replace the formatter.

• Code: 56.00.YY
• Display: 56.00.YY Error
• Description: Optional paper trays communication error occurred.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, reseat the optional paper trays (HCO and HCI).. 3. Check the input connectors for damage. If a connector is damaged, replace the connector.

• Code: 57.00.01
• Display: 57.00.01 Error To continue turn off then on
• Description: Power supply fan (FM-1) malfunction
• Remedy: 1. Turn the product off, and then on. 2. Listen for fan noise at the right side, lower right hand corner of the product. 3. If no noise is heard, make sure that the connector (J226) on the DC controller PCA and the intermediate connector J25 between the DC controller and the fan are connected and undamaged. 4. If the error persists, replace the power supply fan (FM1).

• Code: 57.00.02
• Display: 57.00.02 Error To continue turn off then on
• Description: Controller fan (FM-2) malfunction
• Remedy: 1. Turn the product off, and then on. 2. Listen for fan noise at the rear side, center panel of the product. 3. If no noise is heard, make sure that the connector (J221) on the DC controller PCA and the intermediate connectors (J55 and J16) between the DC controller and the fan are connected correctly and undamaged. 4. If the error persists, replace the controller fan assembly (FM2).

• Code: 57.00.03
• Display: 57.00.03 Error To continue turn off then on
• Description: Rear delivery fan (FM-3) malfunction (M806 only)
• Remedy: 1. Turn the product off, and then on. 2. Listen for fan noise at the left side, upper back of the product. 3. If no noise is heard, make sure that the connectors (J1453 and J1451) on the intermediate PCA and connector (J205) on the DC controller are connected correctly and undamaged. 4. If the error persists, replace the face-down delivery assembly.