Electronic parts, thermal head, manufacturing method of the ther

Details Electronic parts, thermal head, manufacturing method of the ther Electronic parts, thermal head, manufacturing method of the ther

1993-12-10

1997-03-11

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

347180, B41J 234

Patent

active

056106505

ABSTRACT:
A thermal head comprising heating resistors connected in series and arranged on an edge portion of a substrate, first group switching elements respectively connected to first group electrode patterns, second group switching elements respectively connected to second group electrode patterns, and a selecting circuit for selecting one group or the other group of every other switching elements in the second group switching elements, and for selecting at least one of the first group switching elements, whereby a high quality of printing is attained without using diode array.

REFERENCES:
patent: 4518971 (1985-05-01), Endo
patent: 4591877 (1986-05-01), Shiratsuki
patent: 4782202 (1988-11-01), Sawae et al.
H. Sawai et al., Journal of the Electrochemical Society, "A Study on the Low Energy Consumption Thermal Head Using Electroless Ni-W-P Alloy Films as Heating Resistors", vol. 137, No. 11, Nov. 1990, Manchester, N. H., pp. 3653-3660.

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