High-density print head

Details High-density print head High-density print head

1992-08-12

1994-05-31

Fuller, Benjamin R.

Recorders

Thermal recording

346155, 346139C, B41J 2325

Patent

active

053173422

ABSTRACT:
The invention is a print head for a thermal or electrostatic printer, the print head being made from a high-density circuit. The high-density circuit includes conductors having a spacing less than about 0.005 inches, the conductors being disposed over a relatively large area. The circuit is defined by a pattern of grooves in a dielectric substrate, and a conductive material is deposited in the grooves, and heated so as to form a tight bond with the substrate. The resulting circuit is stable, rugged, and capable of producing an image of high resolution. The invention also includes a print head made from a multi-layered version of the circuit. The invention permits the production of black and white or color halftone images having very large numbers of grey scale levels, and exceptional resolution.

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