Thermal head

Details Thermal head Thermal head

1997-06-25

1998-10-20

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

B41J 2335

Patent

active

058253955

ABSTRACT:
A thermal head having an array of a predetermined number of heating elements, wherein the length of the heating elements in the feed direction is set at a value which is in the range of from 2 to 3.5 times the feed pitch in the feed direction. Thus, when color printing is effected by heating color recording paper, it is possible to increase the size of dots even if the color of the dots has a relatively low sensitivity, thereby obtaining an image which gives no sensation of roughness and also obtaining a high density, without causing damage to the surface of color recording paper or undesired color mixing.

REFERENCES:
patent: 5216951 (1993-06-01), Yokoyama et al.
patent: 5384585 (1995-01-01), Okumura

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