Recording head for use in half-tone recording

Details Recording head for use in half-tone recording Recording head for use in half-tone recording

1991-06-06

1992-08-25

Hartary, Joseph W.

Recorders

Thermal recording

338333, 346140R, B41J 2335, B41J 205

Patent

active

051423006

ABSTRACT:
In a recording head for use in a recording apparatus for effecting recording on a recording medium, having a plurality of heat generating elements and electrodes for applying energy to the heat generating elements, when the effective width of the heat generating elements is Wr and the width of the electrodes connected to the heat generating elements is We, 1/10.ltoreq.We/Wr.ltoreq.1/2, and when the length, in the direction of an electric current, of the portion of the heat generating elements in which the current distribution becomes roughest and the portion of the heat generating elements in which the current distribution becomes finest is L, the condition that 1/4.ltoreq.L/Wr.ltoreq.3/2 is satisfied wherein the junctions between said heat generating elements and said electrodes overlap each other.

REFERENCES:
patent: 4339762 (1982-07-01), Shirato
patent: 4510507 (1985-04-01), Ishikawa
patent: 4514741 (1985-04-01), Meyer
patent: 4558331 (1985-12-01), Adkisson
patent: 4590489 (1986-05-01), Tsumura
patent: 4591876 (1986-05-01), Nozaki et al.
patent: 4623903 (1986-11-01), Hashimoto
patent: 4630073 (1986-12-01), Hashimoto
patent: 4712930 (1987-12-01), Maruno

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