Recorders – Thermal recording
Patent
1989-09-06
1991-02-05
Reinhart, Mark J.
Recorders
Thermal recording
400120, G01D 1510
Patent
active
049909347
ABSTRACT:
A recording head operable to apply an electric current, having at least a plurality of recording electrodes and at least one return circuit electrode, which are held in contact with a sheet having at least an electrically resistive layer which generates heat upon energization thereof through the recording and return circuit electrodes. The recording head has an insulating layer including an electrically insulating material and at least one metallic sheet positioned in the electrically insulating material. This insulating layer is disposed between an array of the plurality of recording electrodes and the return circuit electrode or electrodes, so as to form a multi-layer structure which includes the recording electrodes, return circuit electrodes(s) and insulating layer. The recording and return circuit electrodes are formed of an electrically conductive material which has a higher degree of water resistance than that of the insulating layer.
REFERENCES:
patent: 3968500 (1976-07-01), Meisel et al.
patent: 4082619 (1978-04-01), Dehnert
patent: 4595823 (1986-06-01), Sorimachi et al.
patent: 4612433 (1986-09-01), Nagaoka et al.
patent: 4684960 (1987-08-01), Nishiwaki
patent: 4865339 (1989-07-01), Kato
Hirota Toshikazu
Okada Shigeki
Shimogawa Natsumi
Takeuchi Yukihisa
NGK Insulators Ltd.
Reinhart Mark J.
Tran Huan
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