Thermal printing head

Details Thermal printing head Thermal printing head

1990-04-04

1991-11-19

Fuller, Benjamin R.

Recorders

Thermal recording

B41J 2335

Patent

active

050669605

ABSTRACT:
A thermal printing head includes an insulating substrate formed of a heat resisting cloth impregnated with a heat resisting resin. A plurality of heating elements of an electrically resistive material are linearly disposed on the substrate. A shield layer is interposed between the heating elements and the substrate for preventing the substrate from exerting chemical influence on the heating elements. A plurality of conduction controlling devices mounted on the substrate is included for controlling electric conduction of the heating elements corresponding to print data. A common electrode is formed on the substrate for commonly connecting an end of each of the heating elements. A discrete electrode is formed on the substrate for connecting the other end of each of the heating elements to the conduction controlling device. Finally, metal layer is interposed between the heating elements and the electrodes for connecting both of them in an ohmic contact.

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