| 摘要 |
<p>PURPOSE:To contrive the improvement in quality of printing by a method wherein the irregularity in resistance value of each dot of heat-generating resistors is reduced by adding an interface activator to the paste as a heat-generating resistor. CONSTITUTION:A glazed layer 2 is formed on an aluminum substrate 1, and a conductive electrode 4, with which heat is generated on a heat-generating resistor 5, is formed. Printing and sintering operations are conducted on the above-mentioned electrode 4 using ruthenium oxide, a glass material and resistance paste by adding an interface activator of 0.05% to a paste-forming vehicle, and resistance paste, consisting of a diluting agent, and a common heat- generating resistor 5 is formed. Besides, an abrasion-resisting layer 6 is formed by conducting printing and sintering operations. As a result, the difference between the maximum and the minimum values of irregularity against the average resistance value of a thermal head is set at + or -2%.</p> |
