Lexmark W820 Service Manual - Page 36

4025-Finisher Mechanical Stacker Tray Components • The Lift Up Motor supplies a driving force to the Elevator Shaft via each gear on the Elevator Drive Unit. • The Elevator Drive Unit supplies the driving force generated by the Lift Up Motor to the Elevator Drive Gear and Liner Encoder. • The Elevator Drive Gear rotates the Elevator Shaft by the driving force transmitted from the Elevator Drive Unit. • The Elevator Belt elevates the Stacker Tray by the rotation of the Elevator Shaft. • The Lift Up Gear 3 rotates the Liner Encoder by the driving force transmitted from the Lift Up Motor. Drive for Top Tray Exit The rotation of the Exit Top Motor transmits a driving force to the Exit Top Belt. Driving the Exit Top Belt transmits a driving force to the Exit Top Gear (Lower, Middle and Upper), to rotate them. Then, the rotation of each gear rotates the Exit Top Roller. 1-24 Service Manual