Lexmark W820 Service Manual - Page 22
Drive for Punch Unit
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4025-Finisher Drive for Punch Unit The rotation of the Main Feed Motor drives the Main Drive Belt to transmit a driving force to the Main Drive Gear. The rotation of the Main Drive Gear transmits a driving force to the Feed Gear 1. The rotation of the Feed Gear 1 drives the Timing Belt 1, and driving the Timing Belt 1 rotates the Regi Roll Gear. The driving force from the Regi Roll Gear is transmitted to the Punch Gear 1 via the Punch Drive Belt. Then, the rotation of the Punch Gear 1 transmits a driving force to the Punch Clutch via the Punch Gear 2. The rotation of the Punch Clutch moves up and down the Punch Shaft in the Punch Unit to perform the punching operation. The counterclockwise rotation of the Punch Motor moves up the Punch Shaft, while the clockwise rotation moves down the shaft. 1-10 Service Manual
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