Thermal head including at least one paralellogrammatic resistor

Details Thermal head including at least one paralellogrammatic resistor Thermal head including at least one paralellogrammatic resistor

1993-09-17

1996-01-16

Le, N.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

347188, B41J 2345

Patent

active

054851939

ABSTRACT:
A thermal head comprises a plurality of parallelogrammatic resistors for generating heat formed on an insulated substrate made of, such as ceramics or alumina. The resistors are aligned at regular intervals, and one pair of opposite sides of each resistor are connected individually to lead electrodes. These opposite sides are equal to or longer than the other opposite sides, and an acute angle formed between each two intersecting sides is 45.degree. or less. The resistor is heated by various electric currents to record printing dots of various sizes.

REFERENCES:
patent: 4514736 (1985-04-01), Moriguchi et al.
patent: 4698643 (1987-10-01), Nishiguchi et al.
patent: 4737860 (1988-04-01), Ono et al.
patent: 4851861 (1989-07-01), Kikuchi et al.
Tsumura et al., Half-Tone Wax Transfer Using a Novel Thermal Head, published in The Fourth International Congress on Advances in Non-impact Printing Technologies, Mar. 20-25, 1988, pp. 273-276.

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