Mechanical Drive; Drive For High Capacity Feeder - Lexmark W820 Service Manual

14.
Paper Level Sensors 3, 4, and 5
Monitors whether or not a Paper Tray is installed. Installing the Tray pushes the Link
Stopper out, which in turn lowers the Feed Roll and moves the Level Sensor
Actuator tab away from the Sensor window.

Mechanical Drive

Mechanical Drive is a term used to describe both the rotation of the HCF Feed Motor and
the action of the gears and rollers used to transmit motor rotation to the drive rolls within
the High Capacity Feeder. The purpose of Mechanical Drive within the High Capacity
Feeder is to provide the mechanical energy needed to drive a sheet of paper from a High
Capacity Feeder tray and into the registration area of the base engine. The three Lift
Motors provide a secondary mechanical drive for the HCF. Each Lift Motor raises the
Bottom Plate of the associated paper tray so the paper contains the Feed Rolls.

Drive for High Capacity Feeder

The HCF PWB controls the HCF Feed Motor. The Drive Belt connects the Motor to the
Drive Pulley. The Drive Pulley transmits HCF Feed Motor drive to the three HCF feeder
assemblies. Each feeder assembly has a unique drive path, with the same end goal of
driving a sheet of paper out of a paper tray.
4025 Options
1-45
General Information