Toshiba e-STUDIO520 Service Handbook page 382

[E570] Transport jam during duplex printing (paper not reaching reverse sensor-1)
Is there any paper before the registration sensor when the exit cover is opened?
NO
YES
Is the reverse sensor 1 working?
(Perform the input check in the test mode: 03-[FAX]OFF/[7]/[E])
l NO
l
l
l
l
l
l
l
l
YES
Is the reverse motor driving?
(Perform the output check in the test mode: 03-126)
l NO
l
l
l
l
l
l
l
l
l
l
YES
Is the gate solenoid working?
(Perform the output check in the test mode: 03-274)
l NO
l
l
l
l
l
l
l
l
l
YES
1) Check if there is no mechanical loading at the exit/reversal gate.
2) Check the myler at the reverse section and clean or replace it.
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
Remove the paper.
1) Check if the connector of the reverse sensor-1 is not disconnected.
2) Check if the connector CN335 on the LGC board is not discon-
nected.
3) Check if the connector pins are not disconnected and the harness is
not open circuited.
4) Check if the conductor pattern on the LGC board is not short- or
open circuited.
5) Replace the reverse sensor-1.
6) Replace the LGC board.
1) Check if the connector of the reverse transport unit is not discon-
nected.
2) Check if the connector CN335 on the LGC board is not discon-
nected.
3) Check if the connector pins are not disconnected and the harness is
not open circuited.
4) Check if the conductor pattern on the LGC board is not short- or
open-circuited.
5) Replace the reverse moter.
6) Replace the LGC board
1) Check if the connector of the gate solenoid is not disconnected.
2) Check if the connector CN335 on the LGC board is not discon-
nected.
3) Check if the connector pins are not disconnected and the harness is
not open circuited.
4) Check if the conductor pattern on the LGC board is not short- or
open-circuited.
5) Replace the gate solenoid.
6) Replace the LGC board
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