Lexmark W820 - Optra B/W Laser Printer Service Manual page 26

Mechanical Shift Roller Unit & Main Paddle & Sub Paddle
Components
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1-14
Service Manual
4025-Finisher
The Compiler Tray Feed Motor supplies a driving force to the Shift Roller and Main
Paddle.
The Shift Motor supplies a driving force to the Shift Roller to perform the shifting job.
The Shift Roll Gear 1 transmits the driving force transmitted from the Compiler Tray
Feed Motor to the Shift Roller, and the Shift Roller rotates.
The Transmit Gear transmits the driving force transmitted from the Compiler Tray
Feed Motor to the Main Paddle Gear, and the Main Paddle Gear rotates.
The Main Paddle Gear rotates the Main Paddle.
The Shift Roll Gear 2 transmits the driving force generated from the rotation of the
Shift Roller to the Shift Transmit Gear. And it also transmits the driving force
transmitted from the Shift Handle Gear to the Shift Transmit Pulley, when rotating the
Shift Handle manually.
The Shift Transmit Pulley transmits the driving force transmitted from the Shift Roll
Gear 2 to the Paddle Drive Belt via the Shift Transmit Pulley.
The Paddle Drive Belt transmits the driving force generated from the rotation of the
Shift Transmit Pulley to the Sub Paddle Pulley.
Driving the Sub Paddle Pulley rotates the Shift Transmit Pulley, and the Sub Paddle
is rotated.