Oki ML490 Maintenance Manual page 43

(3) Continuous paper feed operation (Rear) (See Figure 2-9.)
The force transmitted to the platen, rotates the tractor gear through platen gear, the idler
gear and the change gear. The rotation of the tractor gear makes the pin tractor belt rotate
through a sheet feeder shaft, feeding the continuous paper.
Platen gear
Tractor gear
Paper
Change gear
Idle gear
Figure 2-9
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