Code :

Code: 7410
Description: Drum unit non- installing error The drum unit is not installed or not installed properly. The drum PWB EEPROM does not communicate normally.
Causes: The drum unit is not installed. Defective connector cable or poor contact in the connector. Defective drum PWB EEPROM. Defective engine PWB.
Remedy: The drum unit is not installed. Install the drum unit.
Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Drum PWB (YC1) and connect-L PWB (YC3)
Defective drum PWB EEPROM. Replace the drum unit.
Defective engine PWB. Replace the engine PWB and check for correct operation.

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

Code: F020
Description: Main PWB RAM checksum error
Causes: Defective main memory (RAM) on the main PWB. Defective expanded memory (DIMM).
Remedy: Defective main memory (RAM) on the main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB.
Defective expanded memory (DIMM). Replace the expanded memory (DIMM).

Code: F040
Description: Main PWB - engine PWB communication error
Causes: Defective main PWB. Defective engine PWB.
Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB.
Defective engine PWB. Replace the engine PWB.

Code: F041
Description: Main PWB - scanner communication error
Causes: Defective main PWB.
Remedy: Defective main PWB. Turn the main power switch off/on to restart the machine. If the error is not resolved, replace main PWB.

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