Panasonic Panafax UF-885 Service Manual page 193

Panasonic UF-885 / 895
Drive System
The Drive System uses a Planetary Gear System to provide drive to the Pre-Feed Roller and ADF Roller. A planetary gear
system does not have a fixed position; it shifts its position according to the rotational torque of the gear, together with the rotation
of the planet gear. When the Read Point Sensor is activated, and the document is scanned, the Pre-Feed Roller and the ADF
Roller drive are disengaged. The Drive System is shown below.
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