The paper deck controller PCA determines a lifter motor failure, and notifies the formatter, when the
cassette media-stack surface sensor does not detect the stack surface within a specified period after the
lifter motor starts rotating. See
1x500-sheet paper-deck cassette media-out detection on page 93.
The paper deck controller does not detect that the paper deck cassette pickup motor has failed;
therefore a paper jam occurs when the motor fails.
90 Chapter 1 Theory of operation ENWW
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