Canon FAX-L1000 - Manual (Page 597)

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FAX-L1000 Chapter 5: Appendix
"5F-52 ERROR" (Scanner unit malfunction)
<Possible causes>
1.Poor contact in LASER/scanner unit connectors
Action: Reconnect the BD board connector J551, LASER driver board connector J501 and
scanner motor connector J401.
2.Poor contact in ECNT board connector
Action: Reconnect the ECNT board connector J53 correctly.
3.Defective LASER/scanner unit
Action: Replace the LASER/scanner unit.
4.Defective ECNT board
Action: Replace ECNT board.
5.Defective SCNT board
Action: Replace SCNT board.
6.Defective TWINS board
Action: Replace the TWINS board.
7.Defective PDL board
Action: Replace the PDL board.
"5F-54 ERROR" (Main motor malfunction)
<Possible causes>
1.Poor contact in the MAIN MOTOR DRIVE signal line connectors
Action: Reconnect the main motor connector J301 and ECNT board connector J52
correctly.
2.Defective main motor
Action: Replace the main motor.
3.Defective ECNT board
Action: Replace ECNT board.
4.Defective SCNT board
Action: Replace SCNT board.
5.Defective TWINS board
Action: Replace TWINS board.
6.Defective PDL board
Action: Replace the PDL board.