| 摘要 |
There is provided a thermal head having a protective film including a carbon-based protective layer and a lower insulating protective layer which is composed of one or more sub-layers and formed below the carbon-based protective layer, wherein at least one of the sub-layers of the lower protective layer contains not more than 5 atm % of oxygen. The protective layer has significantly reduced corrosion and wear and is protected from cracking and peeling, whereupon the thermal head obtained can have a sufficient durability to ensure that high reliability is exhibited over an extended period of time to perform thermal recording of high-quality images consistently over an extended period of operation.
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