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Failure detection
The DC controller monitors the following motors to determine a motor failure:
Drum motor
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Scanner motor
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Fuser motor
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The DC controller determines if the motor has failed and notifies the formatter when the motor
encounters the following conditions:
Startup failure—The motor does not reach a specified rotational count within a specified time from
●
when the motor starts.
Rotational failure—The rotational speed of the motor is not in the specified range for a specified
●
time after the motor reaches a specified speed.
The DC controller notifies the formatter of a beam detect (BD) failure when it detects a rotational failure
of the scanner motor.
The DC controller monitors the related part condition of the following motors to determine a motor
failure:
Upper cassette lifter motor
●
Lower cassette lifter motor
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8
Chapter 1 Theory of operation
ENWW
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Table of Contents
Troubleshooting
