• Code: 54.XX.YY
• Display: 54.XX.YY Error
• Description: A sensor error has occurred.
• Remedy: 54.00.03: Environmental sensor failure 1. Turn the product off and then on. 2. If the environment sensor has been removed or replaced check the connector (J2) on the environment sensor, the inline connector (J98), and the connector (J108) on the DC controller PCA. 3. If the error persists, replace the environment sensor assembly. 54.00.06 or 54.00.14 or 54.00.19: Registration density sensor failure 1. Open and close the front door to clean the registration density sensor. 2. Use the control-panel menus to perform a full calibration. 3. If the error persists, replace the registration density sensor assembly. 54.0X.0B or 54.0X.0C: Registration density sensor out of range error or Dhalf calibration failure X = 0 black, X = 1 cyan, X = 2 magenta, X = 3 yellow 1. Check the supplies status page to make sure the toner cartridges are not past their useful life. 2. Check the ITB for damage. 3. Make sure the CPR sensor is not contaminated with toner or paper dust. Open and then close the front door to clean the sensor, or clean the sensor with compressed air and soft brush. 4. If error persists, replace the registration density sensor assembly. 54.0X.0D or 54.0X.0E: CPR sensor out of range X = 0 black, X = 1 cyan, X = 2 magenta, X = 3 yellow 1. Check the supplies status page to make sure the toner cartridges are not past their useful life. 2. Check the ITB for damage. 3. Make sure the CPR sensor is not contaminated with toner or paper dust. Open and then close the front door to clean the sensor, or clean the sensor with compressed air and soft brush. 4. If error persists, replace the registration density sensor assembly.

• Code: 55.XX.YY
• Display: 55.XX.YY DC controller error
• Description: The DC controller experienced a communication error. • 55.00.01 (event code): DC controller memory error • 55.00.02 (event code): DC controller no engine response • 55.00.07 (event code): DC controller communications timeout • 55.01.06 (event code): NVRAM memory data error warning • 55.02.06 (event code): NVRAM memory access error warning
• Remedy: 1. Turn the product off and then on. 2. Perform an engine test. 3. Check the FFC connector (J105) on the DC controller. 4. If the error persists, replace the DC controller PCA.

• Code: 55.XX.YY
• Display: 55.XX.YY DC controller error
• Description: The communication link between the formatter and DC controller was lost. • 55.00.00: Internal communication error • 55.00.01: DC controller memory error • 55.00.03: DC controller no engine response • 55.00.04: DC controller communications timeout
• Remedy: 1. Turn the product off and then on. 2. Perform an engine test. 3. Check the FFC connector (J105) on the DC controller. 4. If the error persists, replace the DC controller.

• Code: 56.00.01
• Display: 56.00.01 Illegal Input Printer Error
• Description: The product experienced an illegal input.
• Remedy: 1. Turn the product off and then on. 2. Remove any third-party hardware. 3. Attempt the remote firmware update again. 4. If the error persists, replace the DC controller.

• Code: 56.00.YY
• Display: 56.00.YY Error
• Description: The product experienced a communication error with the optional paper tray. • 56.00.01: Selected paper input tray is unavailable • 56.00.02: Selected paper output bin is unavailable
• Remedy: 1. Turn the product off and then on. 2. Reseat the optional paper tray. 3. Check the input connectors for damage. If a connector is damaged, replace the connector.

• Code: 57.00.0X
• Display: 57.00.0X Error
• Description: A fan error has occurred.
• Remedy: 57.00.01: Fan motor 1 malfunction 1. Turn the product off and then on. Listen for fan noise at the right-rear corner of the product. If no noise is heard, replace the power supply fan (FM1). 2. If this part has been removed or replaced, 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 immediately after the product power is turned on. If the voltage changes from 0 VDC to approximately 24 VDC, replace the fan (FM1). 57.00.02: Fan motor 2 malfunction 1. Turn the product off and then on. Listen for fan noise at the left side of the product. If no noise is heard, replace the toner cartridge fan (FM2). 2. If this part has been removed or replace, check the connector (J26) on the toner 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) immediately after the product power is turned on. If the voltage changes from 0 VDC to approximately 24 VDC, replace the fan (FM2). 57.00.03: Fan motor 3 malfunction 1. Turn the product off and then on. Listen for fan noise at the left side 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 at FM3 (J27) , on the HVPS (J262), and on the DC controller (J114). 3. Measure the voltage between the connectors (J262-4 and J262-6) on the high-voltage power supply (lower) immediately 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 Error
• Description: The low-voltage power supply is defective.
• Remedy: 1. Turn the product off and then on. 2. Check the connector (J101) on the DC controller PCA. 3. If the error persists, replace the low voltage power supply.

• Code: 59.00.04
• Display: 59.00.04
• Description: Fuser motor (M2) start up error or fuser motor (M2) rotational error- pressure roller, delivery roller, fuser pressurization, primary transfer roller disengagement
• Remedy: 1. Use the fuser motor (M2) drive test in the component test to verify that the fuser motor is properly functioning. If it is not, replace the fuser motor assembly. 2. If the product was previously serviced, check the connector (J15) on the fuser motor and the connector (J117) on the DC controller PCA.