Typewriting machines – Typing by other than type-face or type-die – Thermal
Patent
1986-01-13
1987-11-24
Pearson, Charles A.
Typewriting machines
Typing by other than type-face or type-die
Thermal
400320, B41J 320, B41J 2528
Patent
active
047085002
ABSTRACT:
A thermal printer has carriage means supporting a print head for travel along a platen and has camming means operably associated with the carriage means for providing a predetermined pressure of the print head against the platen in one direction of travel of the print head and for releasing or reducing such pressure in the other direction of travel.
REFERENCES:
patent: 3509980 (1970-05-01), Loughry et al.
patent: 3777116 (1973-12-01), Brescia et al.
patent: 3989131 (1976-11-01), Knirsch et al.
patent: 4000393 (1976-12-01), Cochran et al.
patent: 4173273 (1979-11-01), Hanakata
patent: 4194847 (1980-03-01), Grey
patent: 4259026 (1981-03-01), Hanaoka et al.
Bangs Richard G.
Grey Michael O.
Hawk Jr. Wilbert
Muckenthaler George J.
NCR Corporation
Pearson Charles A.
Sessler Jr. Albert L.
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