Page: 89
Service Guide OL400
Chapter 4 Failure & Repair Analysis
RAP 15:Poor Fusing
START
Is the heater lamp turning ON?
NO
Replace the engine controller board.
YES
Replace the fuser assembly.
Has the problem been resolved?
YES
END
NO
Are the backup roller springs normal?
NO
Replace the springs.
YES
Replace the fuser assembly.
Has the trouble been removed?
YES
END
NO
Replace the engine controller circuit board.
END
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