SC No. Type Error Name/Error Condition/Major Cause/Solution
1. Reconnect the connector between the fusing unit and BCU.
2. Replace the Thermopile (Center).
3. Replace the harness between the fusing unit and BCU.
4. Replace the BCU, or PSU (AC controller board).
5. Replace the Paper Transport IOB.
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC544-01 A Thermopile (Center) high temperature detection (hardware)
In the event of an error
• Triac defective (short-circuit)
• Engine controller defective
• Heating central thermopile defective
• Fusing control software: out of control
1. Reconnect the connector between the fusing unit and BCU.
2. Replace the Thermopile (Center).
3. Replace the harness between the fusing unit and BCU.
4. Replace the BCU, or Paper Transport IOB.
5. Replace the Fusing Unit.
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC544-02 A Non-contact Thermistor (Center) high temperature detection (hardware)
In the event of an error
• Triac defective (short-circuit)
• Engine controller defective
• Heating central thermopile defective
• Fusing control software: out of control
6. Troubleshooting
920
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