© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
e-STUDIO350/352/353/450/452/453
TROUBLESHOOTING
5 - 11
5
[EB50] Paper left on the transport path due to multiple feeding
In case the paper is fed from the upper drawer, bypass unit or ADU:
Open the jam access cover. Is there any paper in front of the registration sensor?
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YES
Æ
Remove the paper.
NO
When the paper is fed from the upper drawer:
Is the upper drawer feed sensor working? (Perform the input check: 03-[FAX]ON/[6]/[E])
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NO
Æ
1) Check if the connector of the upper drawer feed sensor is disconnected.
2) Check if the connector CN318 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 upper drawer feed sensor.
6) Replace the LGC board.
YES
When the paper is fed from the bypass feed unit:
Is the bypass feed sensor working? (Perform the input check: 03-[FAX]ON/[4]/[F])
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NO
Æ
1) Check if the connector of the bypass feed sensor is disconnected.
2) Check if the connector CN304 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 sensor.
6) Replace the LGC board.
YES
When the paper is fed from the ADU:
Is the ADU exit sensor working? (Perform the input check: 03-[FAX]OFF/[1]/[G])
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NO
Æ
1) Check if the connector of the ADU exit sensor is disconnected.
2) Check if either of the connectors CN211 or CN213 on the ADU board is dis-
connected.
3) Check if the connector CN304 on the LGC board is disconnected.
4) Check if the connector pins are disconnected or the harnesses are open
circuited.
5) Check if the conductor patterns on the ADU board and LGC board are short
circuited or open circuited.
6) Replace the ADU exit sensor.
7) Replace the ADU board.
8) Replace the LGC board.
YES
Is the registration sensor working?
(Perform the input check in the test mode: 03-[FAX]ON/[2]/[A])