Continuous form printer having adjustable tractors

Details Continuous form printer having adjustable tractors Continuous form printer having adjustable tractors

1994-11-14

1996-05-14

Hilten, John S.

Typewriting machines

Sheet or web

For feeding web record-medium

4006162, 226 75, 226 79, B41J 1126

Patent

active

055162207

ABSTRACT:
A continuous form printer includes a tractor feed system that adapts to changes in paper width while printing. A tractor body is movable on a shaft, and a movable housing supporting tractor pulleys and a tractor belt is resiliently movable with respect to the tractor body. A locking member, in a first position, allows the tractor body to be adjusted for paper size while holding a movable member. In a second position, the locking member holds the tractor body in place, and frees the movable member to move relative to the tractor body, so that the movable member, supporting the tractor pulleys and belt, may resiliently move to compensate for changes in paper width during printing.

REFERENCES:
patent: 3578138 (1971-05-01), Cantwell
patent: 4848632 (1989-07-01), Mack et al.
patent: 5018888 (1991-05-01), Nishimura et al.
patent: 5063416 (1991-11-01), Honda et al.
patent: 5139190 (1992-08-01), Ferguson
patent: 5187528 (1993-02-01), Nishikawa et al.

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