Thermal printing device

Details Thermal printing device Thermal printing device

1980-10-24

1983-01-18

Rubinson, G. Z.

Recorders

Thermal recording

400120, G01D 1510

Patent

active

043694519

ABSTRACT:
Thermal printing device is disclosed which prints on ordinary paper using an ink which melts when heated but is solid at room temperature.
The device comprises an ink-carrier with level surface which carries ink-layer formed on the surface of itself from ink-molten pool to printing position, means for rotating the ink-carrier, a cylindrical roller with linear uneven surface which is in linear contact with the ink-carrier in perpendicular direction to the lines on the surface, forming vacant ink-pool between the ink-carrier and the cylindrical roller itself, adhering the ink of ink-molten pool on the surface of ink-carrier as an ink-layer in accordance with the rotation of the ink-carrier, means for melting the ink of ink-molten pool, means for generating thermal patterns for re-melting solid ink-layer by generating thermal patterns in accordance with the printing signal at the printing position corresponding to printing paper and means for controlling the feeding of printing paper, forcing the paper to contact with the ink-carrier so that the ink patterns may be transcribed on the printing paper.
By these means, the ink can controllably and adequately be solidified and melted. Thereby, the ink-layer can be evened and printing quality can be improved. In addition, the device itself can be simplified.

REFERENCES:
patent: 1934753 (1933-11-01), Wildhaber
patent: 2616961 (1952-11-01), Groak
patent: 3719261 (1973-03-01), Heinzer et al.
patent: 4140907 (1979-02-01), Pba
IBM Technical Disclosure Bulletin, vol. 14, No. 2, Jul. 1971, p. 504, E. P. Damm, Jr., "Thermal Printer".

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