Recorders – Thermal recording
Patent
1987-12-28
1989-08-08
Goldberg, E. A.
Recorders
Thermal recording
400120, 400662, G01D 1500
Patent
active
048557560
ABSTRACT:
In apparatus for thermally transferring ink from a ribbon, having backing and ink donor layers, to a letter, wherein the apparatus includes a frame, a thermal printhead, structure connected to the frame for controlling the printhead, and a roller, wherein the printhead is disposable in a non-printing position permitting a ribbon to be located between the printhead and roller and in a printing position in which the printhead is in engagement with the backing layer of a ribbon, and wherein the roller is adapted for rotation when in engagement with a letter fed between the roller and a ribbon, an improvement for urging a ribbon and letter into engagement with one another, the improvement comprising: the printhead controlling structure including structure for resiliently supporting the printhead for urging the ink donor layer of a ribbon into contact with a letter when the printhead is disposed in the printing position; and the roller including a body portion adapted to flex when engaging a letter for urging a letter into contact with the ink donor layer of a ribbon.
REFERENCES:
patent: 3920113 (1975-11-01), Tamai
patent: 4285275 (1981-08-01), Sato
Gluck Julius
Murphy Patrick
Tran Duc H.
Goldberg E. A.
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
Tran Huan H.
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