(4)Push and pull tractor mechanism (Option) (See Figure
This mechanism consist of an optional pull tractor and a standard push tractor mechanism. This mechanism can perform forward and reverse feed by setting continuous sheets to the push tractor and pull tractor.
The rotation of the platen is transmitted to the push tractor and the pull tractor. Sheets are fed by these two tractors at the same time.
To remove slack from the sheets, set the sheets according to the following procedure when using the push and pull tractors.
1Set the change lever to the to feed).
REAR
position (setting the sheets to the push tractor
2Set the paper, which is fed in front of the platen, to the pull tractor.
3Set the change lever to the TOP position and feed paper using the platen knob.
4If paper slack is removed, set the change lever to the REAR position.
Pull tractor
Drive gear
Idle gear
Platen gear
Push tractor
Platen
Figure
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