Toshiba e-STUDIO 2555C Service Manual page 691

Check item
FIL board
IH board
Status counter
Replace parts
Side cover interlock switch.
LGC board
FIL board
IH board
Power supply
[C480] IGBT high temperature abnormality
Classification
Fuser unit related service call
Check item
IH board cooling fan
IH board
LGC board
Status counter
Replace parts
IH board cooling fan
IH board
LGC board
Power supply
[C481] IGBT thermistor breaking abnormality
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• Connector check (CN501, CN502, CN551, CN552,
CN553, CN554)
• Board check
• Connector check (CN561, CN562, CN563)
• Board check
1. [0], [8] Power ON.
2. Key in "2002", then press [START].
3. Change the current status counter value (08-2002) "11" to
"0"
4. Turn the power OFF and then back ON. Make sure that
the equipment enters the normal ready state.
IGBT overheating abnormality
• Fan motor check
(Perform the output check: 03-442)
• Connector check (J1098)
• Harness check
• Connector check (CN561, CN562, CN563)
• Harness check
• Connector check (CN357)
• Harness check
1. [0], [8] Power ON.
2. Key in "2002", then press [START].
3. Change the current status counter value (08-2002) "14" to
"0".
4. Turn the power OFF and then back ON. Make sure that
the equipment enters the normal ready state.
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Measures
Remarks
Error item
Measures
Remarks
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8