Multipurpose Feeding; Registration Unit - Lexmark C920 Service Manual

5056-XXX

Multipurpose feeding

The multipurpose feed clutch turns on when a signal is received by the printer controller board. The
multipurpose feed roll is interconnected with drive unit 1 by a spring clutch. When the signal is received to print,
the clutch engages and rotates the pick roller to feed paper.

Registration unit

Once the media is fed up the right of the printer, it temporarily stops at the registration rollers so the paper's
leading edge can be adjusted so it will be parallel with the image to be printed.
The lower registration roll interfaces with the registration clutch and is responsible for feeding or stopping the
paper. Once the paper is synchronized, the media passes through the registration rollers on its way to the
absorption roller of the transfer belt.
Note: There is a registration sensor located just prior to the registration rollers. This sensor detects the
presence of paper and will trigger a paper jam if the media doesn't pass by the sensor in the appropriate
amount of time.
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Service Manual