Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
Code: F020
Description: Memory checksum error
Causes: Defective main PWB. Defective expansion memory.
Remedy: Defective main PWB. Replace the main PWB and check for correct operation. Defective expansion memory. Replace the expansion memory and check for correct operation.
Code: F030
Description: Main PWB system error
Causes: Defective main PWB.
Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
Code: F040
Description: Engine PWB communication error
Causes: Defective main PWB.
Remedy: Defective main PWB. Replace the main PWB and check for correct operation. Defective engine PWB. Replace the engine PWB and check for correct operation.
Code: F041
Description: Scanner communication error
Causes: Defective engine PWB. Defective main PWB.
Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
Code: F050
Description: Engine ROM checksum error
Causes: Defective engine PWB.
Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.