Toshiba e-STUDIO520 Service Handbook page 438

[Procedure 3]
Check the safety zone switch (MS3). Is the switch working normally?
NO
YES
Is the safety zone switch (MS3) correctly pressed?
NO
YES
Is the shutter closed detecting switch (MS4) working normally?
NO
YES
Is the shutter closed detecting switch (MS4) correctly pressed?
NO
YES
Replace the finisher controller PC board.
[CB20] Delivery motor abnormality
Rotate the delivery motor by hand. Does it rotate smoothly?
NO
YES
Is the delivery motor clock sensor (PI10) working normally?
NO
YES
Does the voltage between J11-4 and -5 on the finisher controller PC board become 24V
when the delivery motor starts rotating?
NO
YES
Is the wiring between the delivery motor and finisher controller PC board correct?
YES
NO
Replace the motor.
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
Replace the switch.
Fix the mechanism.
Replace the switch.
Fix the mechanism.
Fix the mechanism.
Replace the sensor.
Replace the finisher controller PC board.
Correct the wiring.
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