• Code: 0520
• Description: Abnormally high heating roller temperature
  • The temperature detected by the thermistor /1 remains higher than the specified value for a given period of time or longer.
  • The heater lamp remains ON for a given period of time or longer.
• Remedy: 1 Check the fuser unit for correct installation (whether it is secured in position). 2 Check the connector between fuser unit- PRCB PJ26 for proper connection and correct as necessary. 3 Check the connector between fuser unit- DCPU CN2 for proper connection and correct as necessary. 4 Change fuser unit. 5 Change PRCB. 6 Change DCPU.

• Code: 0F52
• Description: Toner level sensor/Y malfunction
  • An error occurs on the toner level sensor for each color.
• Remedy: 1 Check the connector between each sensor- PRCB PJ25 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Change PRCB.

• Code: 0F53
• Description: Toner level sensor/M malfunction
  • An error occurs on the toner level sensor for each color.
• Remedy:

• Code: 0F54
• Description: Toner level sensor/C malfunction
  • An error occurs on the toner level sensor for each color.
• Remedy: 1 Check the connector between each sensor- PRCB PJ25 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Change PRCB.

• Code: 0F55
• Description: Toner level sensor/K malfunction
  • An error occurs on the toner level sensor for each color.
• Remedy: 1 Check the connector between each sensor- PRCB PJ25 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Change PRCB.

• Code: 13DD
• Description: Backup data error
  • The engine counter data and the controller counter data are inconsistent.
• Remedy: 1 Select [Service Mode] - [BK Clear], and execute the BK Clear function. 2 Check the connector between MFPB CN16-PRCB PJ21 for proper connection and correct as necessary. 3 Change PRCB. 4 Change MFPB.

• Code: 13E2
• Description: Engine flash ROM write error
  • Flash ROM writing is found faulty during a check.
• Remedy: 1 Rewrite the engine firmware. 2 Change PRCB.

• Code: 13E3
• Description: Engine flash ROM device fault
  • An erase error occurs during erasing of data in flash ROM.
• Remedy: 1 Rewrite the engine firmware. 2 Change PRCB.