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e-STUDIO350/352/353/450/452/453
TROUBLESHOOTING
5 - 27
5
[E721] Jam not reaching the read sensor
[E722] Jam not reaching the exit sensor (during scanning)
[E723] Jam not reaching the reverse sensor (during scanning)
Are the registration roller and read roller stained?
È
YES
Æ
Clean the rollers.
NO
Is the read sensor working? (Perform the input check: 03-[FAX]ON/[7]/[G])
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È
NO
Æ
1) Check if the connector of the read sensor are disconnected.
2) Check if the connector CN6 on the RADF 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 RADF board is short circuited or open
circuited.
5) Replace the read sensor.
6) Replace the RADF board.
YES
Replace the RADF board.
Is the read roller stained?
È
YES
Æ
Clean the roller.
NO
Are the exit sensor and reverse sensor working?
(Perform the input check: 03-[FAX]ON/[7]/[E], [7]/[F])
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È
NO
Æ
1) Check if the connectors of the exit sensor and reverse sensor are discon-
nected.
2) Check if the connector CN4 on the RADF 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 RADF board is short circuited or open
circuited.
5) Replace the exit sensor and reverse sensor.
6) Replace the RADF board.
YES
Replace the RADF board.