Recorders – Thermal recording
Patent
1991-05-02
1992-03-31
Fuller, Benjamin R.
Recorders
Thermal recording
346155, G01D 1510
Patent
active
051012219
ABSTRACT:
A recording head operable to apply an electric current to an electrically resistive layer provided on a recording medium or a planar intermediate member interposed between the medium and the recording head. The head includes an electrically insulating substrate, and at least one recording electrode formed on one of opposite major surfaces of the substrate. The substrate is formed of an electrically insulating material whose wear resistance is lower than that of the recording electrode or electrodes. The substrate has a distal end portion extending from a proximal portion by a predetermined distance from the proximal portion for contact with the electrically resistive layer. The distal end portion has a thickness smaller than that of the proximal portion, as measured in a direction perpendicular to a direction of extension of the distal end portion. At least one return circuit electrode formed from a metal or metal alloy sheet is provided on the other major surface of the substrate remote from the recording electrode(s).
REFERENCES:
patent: 4651168 (1987-03-01), Terajima et al.
patent: 4990934 (1991-02-01), Takeuchi et al.
Hirota Toshikazu
Okada Shigeki
Takeuchi Yukihisa
Fuller Benjamin R.
NGK Insulators Ltd.
Preston Gerald E.
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