Recorders – Thermal recording
Patent
1982-12-30
1984-07-03
Hartary, Joseph W.
Recorders
Thermal recording
346 11, 400120, 4002403, G01D 1510
Patent
active
044582536
ABSTRACT:
In a thermal printer the transfer ribbon such as one having sets of transverse color stripes is guided over of a ribbon support which carries the heat applying print head. The ribbon support is movable relative to the paper by an eccentric to move the ribbon into and out of contact with the paper. A support beam and a guiding roller are provided immediately behind print area to guide the ribbon away from the paper path in an angle of more than 45 degrees. This assures a separation of the ribbon from the paper essentially normal to its surface, thus avoiding shear upon relative movement between paper and ribbon and negates the need for a relatively bulky ribbon carrier material. Color printing is performed by clamping paper and ribbon, applying heat, transferring color material, retracting the ribbon from the paper, advancing the ribbon to the next color area, printing again on the very same paper area as often as desired, repeating this as often as necessary and advancing the paper after finishing the present print line.
REFERENCES:
patent: 3726212 (1973-04-01), Combs
patent: 4250511 (1982-02-01), Stein et al.
Goff, Jr. Willie
Ku Ta C.
Hartary Joseph W.
International Business Machines - Corporation
Jackson John L.
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