Print head having reduced noise and vibration characteristics

Details Print head having reduced noise and vibration characteristics Print head having reduced noise and vibration characteristics

1989-08-16

1991-05-07

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, 400690, B41J 228, B41J 1120

Patent

active

050131699

ABSTRACT:
An improved print head for a dot matrix printer is provided. The printing is performed by wires projecting from said print head. The movement of the wires is controlled by the movement of armatures which contact an armature base. The construction of the base from a liquid crystal polymer or an aromatic series polyester resin results in improved vibration damping which in turn results in quieter printer operation.

REFERENCES:
patent: 4135830 (1979-01-01), Hishida et al.
patent: 4758693 (1988-07-01), Hoffman
patent: 4872851 (1989-09-01), Babuka et al.
patent: 4875839 (1989-10-01), Sakata et al.
patent: 4884905 (1989-12-01), Smith
IBM Technical Disclosure Bulletin, vol. 32, No. 9A, Feb. 1990.
Vectra, "Liquid Crystal Polymer", Engineering Plastics Division Hoechst Celanese Corporation, 1988.

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