Printer for use with continuous form

Details Printer for use with continuous form Printer for use with continuous form

1988-12-07

1990-08-28

Eickholt, Eugene H.

Typewriting machines

Sheet or web

For feeding web record-medium

226 74, B41J 1126

Patent

active

049520873

ABSTRACT:
In a printer for use with a continuous form, a tractor drive shaft and a tractor guide shaft are mounted to a tractor frame of a bi-directional form feeder unit in parallel relation to each other. A pair of tractors mounted on both the shafts are movable therealong, but can be fixed to a shaft body of the guide shaft at respective desired positions. Opposite axial ends of the drive shaft are received respectively in a pair of elongated slots whose longitudinal axes extend substantially perpendicularly to a platen. One axial end of the drive shaft is drivingly connected to a drive unit. A pair of support shaft sections extend respectively from opposite axial end faces of the shaft body and are supported by the tractor frame. An axis of the shaft body extends in eccentric relation to an axis common to the support shaft sections. The shaft body is angularly movable about its axis relatively to the tractors. An operating member is mounted to one support shaft section for angularly moving the shaft body about the common axis, thereby moving the tractors toward and away from the platen to adjust tension on the continuous form.

REFERENCES:
patent: 2400226 (1946-05-01), Enth
patent: 4365905 (1982-12-01), Jung
patent: 4402623 (1983-09-01), Biche et al.
patent: 4440516 (1984-04-01), Rosenthal et al.
patent: 4485950 (1984-12-01), Knelzer
patent: 4723697 (1988-02-01), Tano et al.
patent: 4805822 (1989-02-01), Milano, Jr.

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