The DC controller determines that a laser/scanner has failed when any of the following conditions
occurs:
●
Laser failure: The detected laser intensity does not match a specified value when the product
initializes.
●
Beam-detect (BD) failure: The BD interval is outside a specified range during printing.
●
Scanner-motor failure: The scanner motor does not reach a specified rotation speed within a
certain time after it begins rotating.
132 Chapter 5 Theory of operation ENWW
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