Head wire and manufacturing process thereof
AssigneesInternational Business Machines Corporation, Krd Corporation
InventorsTsutomu Sawa, Hiroyuki Takenoshita, Kohei Shibata, Hirohide Komatsu
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Abstract
A head wire for use in a high-speed impact dot matrix printer head, having an elongated body, made of a high speed steel wire material or titanium alloy wire material. One end of the body is connectable to an armature of the printed head and a second end on an ink ribbon for printing characters on a paper material. The second end has a coating formed around its periphery and consists of a ceramic hard titanium compound or an aluminum oxide.
Claims2
A head wire for use in a high-speed impact dot matrix printer head including an armature, said head wire, comprising:
- an elongate body formed of one of a high speed steel wire material and a titanium alloy wire material;
- a first end connectable to the armature and a second end having an end surface for printing characters on a paper material by acting on an ink ribbon arranged above the paper material;
- and
- a coating formed around only the perimetric periphery of said second end, wherein said end surface is not coated, said coating comprises one of a ceramic hard titanium compound and an aluminum oxide.
Dependencies are inferred from the claim text.