Kyocera FSC5400DN

• Code: 7412
• Description: Drum unit C non-installing error
  The EEPROM of drum PWB C does not communicate normally. Incompatible drum unit C is installed.
• Causes: Faulty connection of the connector between the drum PWB C and drum relay PWB. Defective harness between drum relay PWB (YC1) and engine PWB (YC34), or improper connector insertion. Installation of incompatible drum unit C. Defective drum PWB C. Defective engine PWB.
• Remedy: Faulty connection of the connector between the drum PWB C and drum relay PWB. Check the installation of the developing unit C and drum relay PWB and reinstall them if necessary.
  Defective harness between drum relay PWB (YC1) and engine PWB (YC34), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Installation of incompatible drum unit C. Install drum unit C compatible with the specifications to the printer.
  Defective drum PWB C. Replace the drum unit C.
  Defective engine PWB. Replace the engine PWB.

• Code: 7413
• Description: Drum unit M non-installing error
  The EEPROM of drum PWB M does not communicate normally. Incompatible drum unit M is installed.
• Causes: Faulty connection of the connector between the drum PWB M and drum relay PWB. Defective harness between drum relay PWB (YC1) and engine PWB (YC34), or improper connector insertion. Installation of incompatible drum unit M. Defective drum PWB M. Defective engine PWB.
• Remedy: Faulty connection of the connector between the drum PWB M and drum relay PWB. Check the installation of the developing unit M and drum relay PWB and reinstall them if necessary.
  Defective harness between drum relay PWB (YC1) and engine PWB (YC34), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Installation of incompatible drum unit M. Install drum unit M compatible with the specifications to the printer.
  Defective drum PWB M. Replace the drum unit M.
  Defective engine PWB. Replace the engine PWB.

• Code: 7414
• Description: Drum unit Y non-installing error
  The EEPROM of drum PWB Y does not communicate normally. Incompatible drum unit Y is installed.
• Causes: Faulty connection of the connector between the drum PWB Y and drum relay PWB. Defective harness between drum relay PWB (YC1) and engine PWB (YC34), or improper connector insertion. Installation of incompatible drum unit Y. Defective drum PWB Y. Defective engine PWB.
• Remedy: Faulty connection of the connector between the drum PWB Y and drum relay PWB. Check the installation of the developing unit Y and drum relay PWB and reinstall them if necessary.
  Defective harness between drum relay PWB (YC1) and engine PWB (YC34), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
  Installation of incompatible drum unit Y. Install drum unit Y compatible with the specifications to the printer.
  Defective drum PWB Y. Replace the drum unit Y.
  Defective engine PWB. Replace the engine PWB.

• Code: 9530
• Description: Backup data error
  The serial number of the machine written on the EEPROM of the engine PWB differs with that is written on both the flash memory of the engine PWB and the EEPROM of the drum PWB as a backup.
• Causes: Replacing both the engine PWB and the drum unit at the same time.
• Remedy: Check that the machine operates properly by reverting the engine controller and the drum unit to the old ones. To replace the engine PWB and the drum unit at the same time, turn on the printer after replacing either one. Check that the printer operates properly and then turn off the printer. Replace the other and turn on the printer to check that the printer operates properly. Be sure to replace one by one.

• Code: F000
• Description: Main PWB - Operation panel PWB communication error
• Causes: Defective main PWB. Defective operation panel PWB.
• Remedy: Defective main PWB. Turn the power switch off/on to restart the printer. If the error is not resolved, replace main PWB.
  Defective operation panel PWB. Replace the operation panel PWB.

• Code: F010
• Description: Main PWB checksum error
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Turn the power switch off/on to restart the printer. If the error is not resolved, replace main PWB.