Toshiba e-STUDIO350 Service Handbook page 463

[E721] Jam not reaching the read sensor
Are the registration roller and read roller stained?
YES Clean the rollers.
NO
Is the read sensor working? (Perform the input check: 03-[FAX]ON/[7]/[G])
| NO 1) Check if the connector of the read sensor are disconnected.
|
2) Check if the connector CN6 on the RADF board is disconnected.
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3) Check if the connector pins are disconnected or the harnesses are open
|
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4) Check if the conductor pattern on the RADF board is short circuited or open
|
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5) Replace the read sensor.
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6) Replace the RADF board.
|
YES
Replace the RADF board.
[E722] Jam not reaching the exit sensor (during scanning)
[E723] Jam not reaching the reverse sensor (during scanning)
Is the read roller stained?
YES Clean the roller.
NO
Are the exit sensor and reverse sensor working?
(Perform the input check: 03-[FAX]ON/[7]/[E], [7]/[F])
| NO 1) Check if the connectors of the exit sensor and reverse sensor are discon-
|
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2) Check if the connector CN4 on the RADF board is disconnected.
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3) Check if the connector pins are disconnected or the harnesses are open
|
|
4) Check if the conductor pattern on the RADF board is short circuited or open
|
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5) Replace the exit sensor and reverse sensor.
|
6) Replace the RADF board.
|
YES
Replace the RADF board.
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TROUBLESHOOTING
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