Thermal print bar

Details Thermal print bar Thermal print bar

1977-07-15

1978-02-14

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219543, 346 76R, H05B 100

Patent

active

040741095

ABSTRACT:
A thermal printing bar, as for a facsimile printer, has a pattern of associated conductors on each side thereof to produce two rows of hot spots in the printing bar. The hot spots in one row are offset relative to the other row. By suitably sizing the hot spots, the spots in one row will at least completely fill the gaps between the spots in the other row, or can even overlap. By this means, the one row is first printed on the paper; the paper moved by the distance between the centers of the rows and then the other row printed. This provides contiguous or overlapping spots on the paper, giving improved contrast.

REFERENCES:
patent: 3967092 (1976-06-01), Conta et al.
patent: 4017712 (1977-04-01), Baraff et al.

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