Oki ML490 Maintenance Manual page 45

(5) Pull tractor mechanism (option) (See Figure 2-11.)
Bottom feed of continuous sheets is possible only when an optional pull tractor unit is
installed.
The rotation of the platen is transmitted to the idle gear of the pull tractor unit through
the platen gear at the left end of the platen. The rotation of the idle gear is transmitted
to the drive gear, and continuous sheet forms are fed by the pull tractor being rotated
through the sheet feeder shaft.
Continuous sheet form
Pull Tractor assembly
Sheet feeder shaft
Idle gear
Drive gear
LF motor
Platen
Platen gear
LF Idle gear
Figure 2-11
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