PURPOSE: To heighten density of a product and to improve yield of the product by a method wherein electrode hairlines whose conductor core materials are peripherally covered with insulating layers are used as electrodes that apply electric current to an exothermic resistive body.
CONSTITUTION: Electrode hairlines 10, 20 whose conductor core materials 30 are peripherally covered with insulating layers 40 are used as electrodes that apply electric current to an exothermic resistive body 50. When a signal current is applied to the electrode hairlines 10, being a signal electrode in a pair of adjoining electrode hairlines 10, 20 among a large number of electrode hairlines 10, 20 that are lined up in an arrangement, the electric current flows from the end face of the electrode hairline 10 the the end face of the electrode hairline 20 through the exothermic resistive body 50, making a part wherein the electric current flows of the exothermic resistive body 50 partially heat up. By controlling the signal current in accordance with information to be recorded, partial heating up of the exothermic resistive body 50 becomes feasible with the current supplied between optional electrode hairlines 10, 20. By making the line of the electrode hairline 20 move by half a pitch in the direction of the lining-up against the lining-up of the electrode hairline 10, the number of dots in that direction becomes double.
OTSUKI HISANORI
SAEKI KIYOSHI
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