Toshiba e-STUDIO350 Service Handbook page 460

[E480] Bridge unit opened during printing
Is the bridge unit open?
YES
NO
Is the bridge unit opening/closing switch working? (Perform the input check in the test mode:
03-[FAX]OFF/[8]/[H])
| NO
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YES
Replace the LGC board.
[E490] JSP cover opened during printing
Is the JSP cover open?
YES
NO
Is the JSP cover switch working? (Perform the input check in the test mode: 03-[FAX]OFF/[8]/
[H])
| NO
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YES
1) Replace the JSP board.
2) Replace the LGC board.
e-STUDIO350/352/353/450/452/453
TROUBLESHOOTING
Remove the paper if there is any, then close the unit.
1) Check if the connector of the bridge unit opening/closing switch is discon-
nected.
2) Check if the connector CN302 on the LGC board is disconnected.
3) Check if the connector pins are disconnected or the harnesses are open
circuited.
4) Check if the conductor patterns on the LGC board is short circuited or open
circuited.
5) Replace the bridge unit opening/closing switch.
6) Replace the LGC board.
Remove the paper if there is any, then close the cover.
1) Check if the connector of the JSP cover opening/closing switch is discon-
nected.
2) Check if either of the connectors CN260 or CN261 on the JSP board is dis-
connected.
3) Check if the connector CN302 on the LGC board is disconnected.
4) Check if the connector pins are disconnected or the harnesses are open
circuited.
5) Check if the conductor patterns on the JSP board and LGC board are short
circuited or open circuited.
6) Replace the JSP cover switch.
7) Replace the JSP board.
8) Replace the LGC board.
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