Toshiba e-STUDIO6520c - Page 423

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ERROR CODE and TROUBLESHOOTING
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[E540]ADU transport jam (Paper not reaching the duplexing unit path exit sensor)
1. Is the duplexing unit path exit sensor working? (Perform the input check: 03-[SCAN]ON/[3]/[G].)
* If it is working properly, proceed to 6. If not, check 2 to 5 below.
2. Check if the connector CN511 on the PFC board is disconnected from the duplexing unit path
exit sensor or the harnesses are open circuited. Correct if so (including CN491 and CN492 on
the ADU board).
3. Check if the duplexing unit path exit sensor is correctly installed or the actuator is properly
moved.
4. Replace the duplexing unit path exit sensor.
5. Replace the PFC board.
6. Are the ADU motor-1 and the ADU motor-2 working? (Perform the output check: 03-146, 03-
144.)
* If they are working properly, proceed to 11. If not, check 7 to 10 below.
7. Check if the connector CN511 on the PFC board is disconnected from the ADU motor-1 or the
ADU motor-2, or the harnesses are open circuited. Correct if so (including CN491 and CN495 on
the ADU board).
8. Replace the ADU motor-1 or the ADU motor-2.
9. Replace the ADU board.
10.Replace the PFC board.
11.Check if there is any abnormality on the driving section of the two motors or the roller. Correct if
any.
[E570]Jam not reaching the bridge unit
1. Is the reverse sensor working? (Perform the input check: 03-[SCAN]ON/[3]/[E].))
* If it is working properly, proceed to 6. If not, check 2 to 5 below.
2. Check if the connector CN514 on the PFC board is disconnected from the reverse sensor or the
harnesses are open circuited. Correct if so (including CN538 and CN539 on the DRV board).
3. Check if the reverse sensor is correctly installed or its detecting element is not damaged or
stained.
4. Replace the reverse sensor.
5. Replace the PFC board.
6. Are the bridge unit transport entrance motor and the fuser motor working? (Perform the output
check: 03-130, 03-129.)
* If they are working properly, proceed to 11. If not, check 7 to 10 below.
7. Check if the connector CN515 on the PFC board is disconnected from the bridge unit transport
entrance motor or the fuser motor, or the harnesses are open circuited. Correct if so (including
CN537 and CN539 on the DRV board).
8. Replace the bridge unit transport entrance motor or the fuser motor.
9. Replace the DRV board.
10.Replace the PFC board.
11.Check if there is any abnormality on the driving section of each motor or the roller. Correct if any.