Toshiba e-STUDIO520 Service Handbook page 416

[ECA0] Paper remaining in Inserter Unit at power-ON
Is there any paper remaining at the inserter transport path?
YES
NO
Are the separation sensor, reverse path sensor and transport sensor working improperly?
YES
NO
Replace the inserter control board.
[ECB0] Incorrect setting of paper size for Inserter Unit
Is the paper size on the inserter tray consist with the size set at the copier control panel?
NO
YES
Is the separation sensor working improperly?
YES
NO
Perform the width adjustment of the inserter tray side guide.
[ECC0] Inserter Unit misfeeding
Is the condition improved when the copier power switch is turned OFF/ON?
NO
1) Replace the copier LGC board.
2) Replace the IPC board.
3) Replace the inserter control board.
[ECD0] Inserter Unit door open jam
Is the problem solved by opening the inserter jam access cover?
NO
1) Check the installation state of the cover.
2) Replace the cover switch and plate spring.
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
Remove the paper.
Replace the sensors.
Set the same paper size as that on the tray.
Replace the separation sensor.
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