Matrix printer with electrostatic discharge

Details Matrix printer with electrostatic discharge Matrix printer with electrostatic discharge

1985-08-15

1987-11-17

Burr, Edgar S.

Typewriting machines

Sheet or web

For feeding web record-medium

400694, 400719, 101416R, 271209, 220199, 361214, B41J 1126, B41J 2902

Patent

active

047071575

ABSTRACT:
Matrix printers exhibit the tendency to develop electrostatic charges on account of various movements in sliding contact between the print medium such as paper on one hand and the transport device and print styli or hammer on the other hand. In order to eliminate these charges the traction means for transporting the paper is driven by a drive shaft which is held in electrical insulation from the transport device but is electrically connected through a paper support structure which is in turn is electrically connected to a connecting rod completing a frame structure for the transport device.

REFERENCES:
patent: 1668049 (1928-05-01), Clinton et al.
patent: 2207677 (1940-07-01), Chapman
patent: 3157330 (1964-11-01), Manor et al.
patent: 3799313 (1974-03-01), Shevick
patent: 3921037 (1979-11-01), Testone
patent: 4500023 (1985-02-01), Akazawa

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