Toshiba e-STUDIO 2555C Service Manual page 689

Procedure Check item
5 Clear the status counter
[C471] IH board initialization abnormality
[C472] Power supply abnormality
Classification
Fuser unit related service call
Check item
Power supply
Side cover interlock switch
Fuser unit
LGC board
FIL board
IH board
Status counter
Connector and harness
Replace parts
Side cover interlock switch.
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1. [0]+ [8] Power ON.
2. Key in "2002", then press [START].
3. Change the current status counter value (08-2002) "5",
"6", "7", "9", "22", "23", "24", "25", "27", "29", or "63 to 66".
* The status counter value is as follows in the following
cases.
- The error occurred during warming-up: "5" or "6"
The error occurred after the equipment has become
ready: "7".
- The temperature detected by the center thermistor is
220°C or higher, the temperature detected by the
edge thermistor is 235°C or higher : "9", "22", "23",
"25", "27" or "29"
- The error occurred during printing: "24", "25", or "64
to 66".
- The error occurred during energy saving: "27".
- A paper jam occurred: "29".
Power is not supplied to the IH board
• Check if the power voltage is normal.(Is the voltage during
the operation ±10% of the rated voltage?)
• Connector check (J1008, CN354)
• Harness check
• Drawer connector check
• Thermostat check
• Unit check
• Connector check (CN357)
• Board check
• Connector check
• 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.
• Check the connectors and harnesses of the parts replaced
just before C471 occurred.
• Check the connectors which connect the equipment and
LCF/PFP.
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Measures
Error item
Measures
Remarks
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8