Oki Microline 3320 Maintenance Manual page 46

(6) Bottom push feed operation (Option) (See Figure 2-13.)
The bottom push feed of the continuous sheet is possible only when the bottom tractor
feed unit is installed.
When the platen rotates, the rotational force of the platen is transmitted through the tractor
idle gear and the tractor change gear to the tractor drive gear of the bottom push tractor,
and the sheet of paper is fed in to the print start position.
Platen
Platen gear
Change gear
Idle gear
Tractor change gear
Tractor idle gear
Tractor drive gear
Figure 2-13
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