Toshiba E-STUDIO520 - Page 382

e-STUDIO520/523/600/603/720/723/850/853 © 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved
TROUBLESHOOTING
5 - 20
[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  Remove the paper.
YES
Is the reverse sensor 1 working?
(Perform the input check in the test mode: 03-[FAX]OFF/[7]/[E])
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l
l
l
l
l
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l

NO  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.
YES
Is the reverse motor driving?
(Perform the output check in the test mode: 03-126)
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l
l
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
NO  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
YES
Is the gate solenoid working?
(Perform the output check in the test mode: 03-274)
l
l
l
l
l
l
l
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l

NO  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
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.