Bypass Misfeeding (Paper Not Reaching The Registration Sensor) - Toshiba e-STUDIO281c Service Handbook

[E120] Bypass misfeeding (paper not reaching the registration sensor)
Open the jam access cover. Is there any paper in front of the registration sensor?
YES
NO
Is the registration sensor working? (Perform the input check: 03-[FAX]ON/[9]/[E])
| NO
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YES
Are the bypass feed clutch and bypass feed sensor working?
(Perform the output check: 03-204 and the input check: 03-[FAX]ON/[9]/[D])
| NO
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YES
Check the rollers in the ADU. Replace them if they are worn out.
e-STUDIO281c/351c/451c
TROUBLESHOOTING
Remove the paper.
1) Check if the connector of the registration sensor is disconnected.
2) Check if the connector CN338 on the LGC board is disconnected.
3) Check if the connector pins are disconnected and the harnesses are open
circuited.
4) Check if the conductor pattern on the LGC board is short circuited or open
circuited.
5) Replace the registration sensor.
6) Replace the LGC board.
1) Check if the connector of the bypass feed clutch is disconnected.
2) Check if the connector CN340 on the LGC board is disconnected.
3) Check if the connector pins are disconnected or the harnesses are open
circuited.
4) Check if the conductor pattern on the LGC board is short circuited or open
circuited.
5) Replace the bypass feed clutch.
6) Replace the bypass feed sensor.
7) Replace the LGC board.
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