Toshiba DP4500 Service Handbook page 164

[CB3] Tray lift motor is abnormal
MJ-1012/1013 (Finisher section)
[Procedure 1]
Is the tray home position sensor (PI8) working normally?
NO
Replace the sensor.
YES
Is the tray elevation mechanism normal?
NO
Fix the mechanism.
YES
Is 24V DC supplied to the tray lift motor (M5) from the finisher controller PC board when the tray is
being driven?
NO
Replace the finisher controller PC board.
YES
Is the wiring between the finisher controller PC board and the tray lift motor (M5) correct?
YES
Correct the wiring.
NO
Replace the tray lift motor (M5).
December 2000 © TOSHIBA TEC 5 - 69 DP4500/3500 TROUBLESHOOTING