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e-STUDIO3511/4511 TROUBLESHOOTING 5 - 26 November 2003 © TOSHIBA TEC
[E741] Stop jam at the reverse sensor
Are the read roller and reverse roller stained?
YES Clean the rollers.
NO
Is the reverse sensor working? (Perform the input check: 03-[FAX]ON/[7]/[F])
NO 1. Check if the connector of the reverse sensor is disconnected.
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 reverse sensor.
6. Replace the RADF board.
YES
Replace the RADF board.
[E742] Jam not reaching the reverse sensor (feeding in reverse)
Is the reverse roller stained?
YES Clean the roller.
NO
Is the reverse sensor working? (Perform the input check: 03-[FAX]ON/[7]/[F])
NO 1. Check if the connector of the reverse sensor is disconnected.
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 reverse sensor.
6. Replace the RADF board.
YES
Replace the RADF board.
[E743] Jam not reaching the exit sensor (feeding in reverse)
Are the reverse roller and read roller stained?
YES Clean the rollers.
NO
Is the exit sensor working? (Perform the input check: 03-[FAX]ON/[7]/[E])
NO 1. Check if the connector of the exit sensor is disconnected.
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.
6. Replace the RADF board.
YES
Replace the RADF board.