6. Troubleshooting
High temperature error (Soft)
• The detected temperature stays at 235°C for 1 second, and this consecutively occurs
10 times.
• Defective Main board
• Defective PSU
543
1. Replace the Main board
2. Replace the PSU
• Execute "Reset Fusing Unit SC" to recover the machine after completing the recovery
procedure. Otherwise, the machine continues to issue this SC code and cannot be
operated.
High temperature error (hard)
• During stand-by mode or a print job, the detected heating roller temperature reaches
250°C.
• Defective Main board
• Defective PSU
544
1. Replace the Main board
2. Replace the PSU
• Execute "Reset Fusing Unit SC" to recover the machine after completing the recovery
procedure. Otherwise, the machine continues to issue this SC code and cannot be
operated.
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