Method of making unit heads for divisional-type thermal head

Details Method of making unit heads for divisional-type thermal head Method of making unit heads for divisional-type thermal head

1992-04-01

1993-06-29

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29414, 346 76PH, H05B 300

Patent

active

052222918

ABSTRACT:
A method is provided for making unit heads from a material head. The unit heads are used to constitute a divisional-type thermal head. The material head includes an elongate insulating substrate carrying a longitudinal array of heating dot portions, and a protective layer extending longitudinally of the material head to cover the array of heat dot portions. According to the method, the material head is cut along at least one cutting line which extends transversely of the material head at a position between two adjacent heating dot portions, wherein the protective layer has cutouts which extend from the respective longitudinal edges of the protective layer toward the array of heating dot portions at the position of the cutting line.

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