March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 TROUBLESHOOTING
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[E020] Paper stopping at fuser transport sensor
Is the fuser transport sensor working?
(Perform the input check in the test mode: 03-[FAX]OFF/[7]/[C])
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NO " 1) Check if the connector of the fuser transport sensor is disconnected.
2) Check if the connector CN332 on the LGC board is disconnected.
3) Check if the connector pins are disconnected and the harnesses are
open circuited.
4) Check if the conductor pattern on the LGC board is short circuited or
open circuited.
5) Replace the fuser transport sensor.
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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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 disconnected.
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 LGC board
YES
1) Check if the separation finger for the fuser unit is working normally.
2) Replace the LGC board
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