Thermal printhead with memory

Details Thermal printhead with memory Thermal printhead with memory

1974-12-16

1976-10-26

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219543, 346 76R, H05B 100

Patent

active

039885690

ABSTRACT:
A latching circuit is used in a thermal printhead matrix. The heater circuit in each mesa or element of the matrix, once energized by input logic signals, is thereafter independent of changes in the input logic signal levels and remains energized until the supply voltage is removed. This permits turning on the individual mesas in a matrix fashion thereby substantially reducing the number of input leads required to control the matrix.

REFERENCES:
patent: 3385957 (1968-05-01), Munson et al.
patent: 3566162 (1971-02-01), Warrender

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