Patent ID: 6517194
Filing Date: 2003-02-11
Classification: B41J

Abstract:
A thermal line head comprising:an electrically-insulated base member; a plurality of electric resistance elements linearly formed on a surface of said base member; and an electrically-conductive wiring pattern configuration formed on the surface of said base member, said electrically-conductive wiring pattern configuration electrically activating said plurality of electric resistance elements, wherein: said electrically-conductive wiring pattern configuration is configured such that each of said electric resistance elements is surrounded by at least two pattern elements included in said electrically-conductive wiring pattern configuration; said electrically-conductive wiring pattern configuration includes plural sets of first and second electrode patterns elements disposed so as to partially surround and electrically contact a corresponding one of said plurality of electric resistance elements; and each of said first electrode pattern elements is formed as an L-shaped electrode pattern element, and each of said second electrode pattern elements is formed as a rectangular pattern element, said L-shaped electrode pattern element and said rectangular pattern element in each set act in conjunction with each other to surround said corresponding one of said plurality of electric resistance elements.