• Code: 55.00.07
• Display: 55.00.YY DC controller error To continue, turn off then on
• Description: DC controller PCA error
  DC controller communications timeout
• Remedy: Turn the product off, and then on. If the error persists, replace the DC controller PCA.

• Code: 55.01.06
• Display: 55.0X.YY DC controller error To continue, turn off then on
• Description: DC controller PCA error
  NVRAM memory data error warning
• Remedy: Turn the product off, and then on. If the error persists, replace the DC controller PCA.

• Code: 55.02.06
• Display: 55.0X.YY DC controller error To continue, turn off then on
• Description: DC controller PCA error
  NVRAM memory access error warning
• Remedy: Turn the product off, and then on. If the error persists, replace the DC controller PCA.

• Code: 56.00.YY
• Display: 56.00.YY Error To continue, turn off then on
• Description: Optional paper tray communication error
• Remedy: Turn the product off, and then on. If the error persists, reseat the optional paper tray (1 x 500-sheet feeder). Check the input connectors for damage. If a connector is damaged, replace the connector.

• Code: 57.00.03
• Display: 57.00.0Y Error To continue, turn off then on
• Description: Fan error
  Power supply fan (FM1) failure
• Remedy: 1. Turn the product off, and then on. Listen for fan noise at the front lower-left corner of the product. If no noise is heard, replace the power supply fan (FM1). 2. If this part has been removed or replace, check the connector (J119) on the DC controller PCA. 3. Measure the voltage between the connectors (J119-1 and J119-3) on the DC controller PCA immediatly after the product power is turned on. If the voltage changes from 0 VDC to approximately 24 VDC, replace the fan (FM1).

• Code: 57.00.04
• Display: 57.00.0Y Error To continue, turn off then on
• Description: Fan error
  Cartridge fan (FM2) failure
• Remedy: 1. Turn the product off, and then on. Listen for fan noise at the front lower-right corner of the product. If no noise is heard, replace the cartridge fan (FM2). 2. If this part has been removed or replace, check the connector (J26) on the cartridge fan, connector (J262) on the high-voltage power supply (lower), and the connector (J114) on the DC controller. 3. Measure the voltage between the connectors (J262-1 and J262-3) on the high-voltage power supply (lower) immediatly after the product power is turned on. If the voltage changes from 0 VDC to approximately 24 VDC, replace the fan (FM2).

• Code: 57.00.05
• Display: 57.00.0Y Error To continue, turn off then on
• Description: Fan error
  Delivery fan (FM3) failure
• Remedy: 1. Turn the product off, and then on. Listen for fan noise at the lower back-center of the product. If no noise is heard, replace the delivery fan (FM3). 2. If this part has been removed or replace, check the connector on the intermediate connect board. 3. Measure the voltage between the connectors (J262-1 and J262-3) on the high-voltage power supply (lower) immediatly after the product power is turned on. If the voltage changes from 0 VDC to approximately 24 VDC, replace the fan (FM3).

• Code: 58.00.04
• Display: 58.00.04
• Description: The low-voltage power supply is defective.
• Remedy: 1. Turn the product off, and then on. 2. Check the connector (J143) on the DC controller PCA. 3. If the error persists, replace the low-voltage power supply.