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ERROR CODE and TROUBLESHOOTING
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[C4B0] Fuser unit counter abnormality
[C4B1] Fuser unit voltage judgment abnormality
Fuser unit • Unit check
• Connector check
• Harness check
Status counter 1. [0], [8] Power ON.
2. Key in “2002”, then press [START].
3. Change the current status counter value (08-2002) “17” to
“0”.
Replace parts Remarks
IH board
LGC board
Classification Error item
Fuser unit related service call
Check item Measures
LGC board • SRAM check
• Board check
Status counter 1. [0], [8] Power ON.
2. Key in “2002”, then press [START].
3. Change the values “72” or above, or “4” of the status
counter (08-2002) to “0”.
Replace parts Remarks
LGC board
Classification Error item
Fuser unit related service call Errors in the IH board, FIL board and fuser unit when the
destination selection of the equipment is incorrect.
Check item Measures
Fuser unit • Unit check
• Connector check
• Harness check
LGC board • Connector check (CN305, CN306, CN330)
• Board check
Switching regulator • Connector check (CN404)
• Harness check
IH board • Connector check
• Board check
Replace parts Remarks
Fuser unit
LGC board
Switching regulator
Check item Measures
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