Canon FAX-L1000 - Manual (Page 457)

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FAX-L1000 Chapter 5: Appendix
14. Defective FAX-L1000 Printer kit
Action: Replace the FAX-L1000 Printer kit.
a-2) Malfunction status troubleshooting
"5F-56 ERROR" (Duplexing unit exhaust fan (FM701) malfunction)
<Possible causes>
1. Poor contact in the connectors of the FM701 drive signal line
Action: Reconnect the intermediate connectors J718 and J719, then the duplexing unit
driver PCB connector J707.
2. Defective fan motor
Action: Replace the exhaust fan.
3. Defective duplexing unit driver PCB
Action: Replace the duplexing unit driver PCB.
"5F-60 ERROR" (Duplex Option error)
<Possible causes>
1. Defective duplexing unit connector
Action: Remove the duplexing unit from the fax and check the connector. Replace the
connector if any failure is found.
2. Defective fax connector
Action: Check the connector. Replace the connector if any failure is found.
3. Defective duplexing unit driver PCB
Action: Replace the duplexing unit driver PCB.
4. Defective ECNT board
Action: Replace the ECNT board.
5. Defective SCNT board
Action: Replace the SCNT board.
6. Defective TWINS board
Action: Replace the TWINS board.
7. Defective FAX-L1000 Printer kit
Action: Replace the FAX-L1000 Printer kit.