Thermal printhead biasing arrangement

Details Thermal printhead biasing arrangement Thermal printhead biasing arrangement

1977-12-07

1979-03-20

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

Stylus feature

400120, G01D 1516, B41J 320

Patent

active

041456980

ABSTRACT:
A device for biasing at least one thermal printhead into uniform, tangential contact with the printing media includes a shaft supported by a housing, an assembly rotatable about the shaft for supporting at least one thermal printhead, and at least one biasing spring for establishing and maintaining adequate torsion on the supporting assembly so as to substantially minimize or eliminate positional instability of the printhead. In the event a plurality of thermal printheads are utilized, the biasing spring also simultaneously compresses each of the supporting assemblies so as to substantially minimize the gap between each of the printheads while maintaining the gap dimensions substantially constant.

REFERENCES:
patent: 3877035 (1975-04-01), Miller et al.
patent: 3980169 (1976-09-01), Decker et al.

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