e-STUDIO350/352/353/450/452/453 © 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
TROUBLESHOOTING
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[E420] PFP side cover opened during printing
[E430] ADU opened during printing
Is the PFP side cover open?
È YES Æ Remove the paper if there is any, then close the cover.
NO
Is the PFP side cover opening/closing switch working?
(Perform the input check in the test mode: 03-[FAX]OFF/[2]/[F])
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È
NO Æ 1) Check if the connector of the PFP side cover opening/closing switch is dis-
connected.
2) Check if either of the connectors CN241 or CN243 on the PFP board is dis-
connected.
3) Check if the connector CN303 on the LGC board is disconnected.
4) Check if the connector pins are disconnected and the harnesses are open
circuited.
5) Check if the conductor patterns on the PFP board and LGC board are short
circuited or open circuited.
6) Replace the PFP side cover opening/closing switch.
7) Replace the PFP board.
8) Replace the LGC board.
YES
1) Replace the PFP board.
2) Replace the LGC board.
Is the ADU open?
È YES Æ Remove the paper if there is any, then close the ADU.
NO
Is the ADU opening/closing switch working?
(Perform the input check in the test mode: 03-[FAX]OFF/[1]/[F])
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È
NO Æ 1) Check if the connector of the ADU opening/closing switch is disconnected.
2) Check if either of the connectors CN211 or CN217 on the ADU board is dis-
connected.
3) Check if the connector CN304 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 ADU board and LGC board are short
circuited or open circuited.
6) Replace the ADU opening/closing switch.
7) Replace the ADU board.
8) Replace the LGC board.
YES
1) Replace the ADU board.
2) Replace the LGC board.
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