| 摘要 |
When a film thickness of electrodes is increased in order to lower a wiring resistance of the electrodes, printing efficiency is reduced because of an electrode step produced in the heating element portion, a two-stage electrode structure in which a film thickness of the electrodes near resistors interfering with a print paper is made small such that the influence due to a step is not caused and in which a film thickness of other electrode portions is made large such that a sufficient wiring resistance can be obtained.
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