Printhead alignment mechanism

Details Printhead alignment mechanism Printhead alignment mechanism

1976-04-28

1979-10-09

Wright, Jr., Ernest T.

Typewriting machines

Typing by other than type-face or type-die

Thermal

400 55, 346 76R, 400124, B41J 304

Patent

active

041704223

ABSTRACT:
A printhead alignment mechanism is used in a non-impact type printer, such as a thermal printer for use, typically, in an electronic calculator. The printhead may pivot in a direction around an axis that is orthogonal to the axis of rotation of the print roller over which the printing medium is driven. The printhead may also pivot in a direction around an axis parallel to the axis of rotation of the print roller. This enables the printhead to follow small irregularities in the printing medium and the print roller. Substantially even pressure is thereby applied across the printhead to provide uniform printed characters.

REFERENCES:
patent: 3300017 (1967-01-01), Yazejian et al.
patent: 3787386 (1974-01-01), McCrady
patent: 3845850 (1974-11-01), Herr et al.
patent: 3848720 (1974-11-01), Carlsen
patent: 3874493 (1975-04-01), Boyd
patent: 3881587 (1975-05-01), Okabe

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