| 摘要 |
PURPOSE:To enable high-resolution record printing to be performed by arranging heating elements on the surface of a substrate having a laminated structure of a glass substrate and a metal substrate and fitting the metal substrate in a recess of the glass substrate provided on the back corresponding to the surface. CONSTITUTION:Of the heat generated by a thermal resistor 3, some which would otherwise the utilized for record printing is efficiently transmitted to a metal substrate 8 from a part which has thinned because of a recess 7 of a glass substrate 1 via a thermal conductive adhesive 10. In the meantime, an unnecessary heat is released from the metal substrate 8. Due to the above- mentioned action, an unnecessary heat is not transmitted to a thermal paper so that the extremely high-resolution record printing can be obtained. Besides the sharp thermal responsiveness is insured so that high-quality record printing is performed. Further this thermal head is low-priced owing to the use of a glass substrate. |
