Toshiba e-STUDIO 2555C Service Manual page 692

Classification
Fuser unit related service call
Check item
IH board
LGC board
Status counter
Replace parts
IH board
LGC board
Power supply
[C4B0] Fuser unit counter abnormality
Classification
Fuser unit related service call
Check item
LGC board
Status counter
Parts to be replaced
LGC board
[C4B1] Fuser unit voltage judgment abnormality
Classification
Fuser unit related service call
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
The abnormality caused by breaking of the sensor which
detects the temperature of IGBT
• Connector check (CN357, 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) "15" to
"0".
4. Turn the power OFF and then back ON. Make sure that
the equipment enters the normal ready state.
Fuser unit counter abnormality
• Check if the conductor pattern on the board is short circuited
or open circuited.
• Check if EEPROM is mounted.
1. Turn the power ON while [0] and [8] are pressed
simultaneously.
2. Key in "2002", then press the [START] button.
3. Reset the displayed current status counter value "1 to 4",
"8", "17 to 21", "26", "28", "30 to 62", or "67 or more", then
press [OK] or [INTERRUPT].
4. Turn the power OFF and then back ON. Make sure that the
equipment enters the normal status.
Errors in the IH board when the destination selection of the
equipment is incorrect.
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Error item
Measures
Remarks
Error content
Measure
Remark
Error item