Lexmark C91 Series, Service Manual

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Service Manual
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Multipurpose feeding
The multipaper feed solenoid turns on by the signal from the printer
controller. The multipurpose feed roll interconnected with the drive 1
through the spring clutch, rotates and picks the paper in the
multipurpose feeder.
Registration unit
Media temporarily stops (registration) when adjusting the paper
leading edge parallel with that of the image, or when adjusting the
timing with the black image.
The upper and lower registration rolls are arranged in parallel with
the photosensitive drum for black imaging. The lower registration roll
incorporates a registration clutch which feeds or stops the paper.
In the forward direction of the registration roll, a registration sensor
(photo interrupter) is provided to detect paper fed from the paper
feeder and to stop paper jam feeding.
MPF Clutch
Registration Sensor
Registration
Roller