| 摘要 |
PROBLEM TO BE SOLVED: To prevent a substrate from bending until a film formation process, a photolithography process and facilitate the bending at the time of assembling a head by cutting thick reinforcing parts of two parallel sides of a filmed substrate having an insulating glass coat applied to one face thereof and fixing the substrate to trace a curve part of a heat sink. SOLUTION: A first, a second glaze glasses 24a, 24b are formed to a left, a right front faces of an iron alloy substrate 21, a swell is formed in the vicinity of a common electrode part 22 to remove a thick reinforcing part of the substrate 21, and the substrate is fixed to trace a curve of a heat sink. One end parts of a first, a second discrete electrodes 26a, 26b formed at front faces of the glasses 24a, 24b are connected to one end parts of heat-generating resistance bodies 25a, 25b, and the other end parts are connected to a first, a second IC controllers. A common electrode 27 is arranged along the common electrode part 22, with having a rear face electrically jointed to a front face of the heat- generating resistance body 25. A thermal head 20 has a plurality of a first, a second heatgenerating resistance bodies 25a..., 25b.... A protecting layer 28 covers the whole front face of the first individual electrode 26a, etc.
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