Thermal printhead with static electricity discharge capability

Details Thermal printhead with static electricity discharge capability Thermal printhead with static electricity discharge capability

1987-06-17

1989-08-08

Goldberg, E. A.

Recorders

Thermal recording

219216, 400120, G01D 1510

Patent

active

048557579

ABSTRACT:
A thermal printhead for dissipating accumulated static electric charge. An electrically conducting outer layer is deposited over the surface of a thermal printhead that receives static charge from the passing print media or ribbon media. The layer, which can be a 100-angstrom-thick layer of chromium, is formed over a glass overglaze. If the surface overglaze is passivated, a 10-angstrom-thick activating primer layer is formed on the glass overglaze before the chromium layer is deposited. The conductive outer layer is connected to electrical ground to dissipate the static electric charge as it is generated.

REFERENCES:
patent: 2446387 (1948-08-01), Peterson
F. A. Hawn, "Discharge of Unwanted Potentials On Photoconductive Insulating Plates & Dielectric Surfaces" IBM Tech. Disl., vol. 12, No. 12, 05/70.

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