发明名称 |
THERMAL PRINTING APPARATUS |
摘要 |
<p>THERMAL PRINTING APPARATUS Thermal printing apparatus includes a magnetic core having a gap, an electromagnetic coil mounted on the core for generating an electromagnetic field in the core and through the gap, a rotatably mounted cylindrical thermal print head having type characters on its periphery and located partially within the gap in the magnetic core, and a mechanism for rotating the print head to locate a selected type character in printing position in cooperative relation to a pressure element. The magnetic field generates circulating currents in the print head for heating it to a temperature necessary for causing heat-sensitive ink to be transferred from a ribbon to a record medium, both of which are positioned between the print head and the pressure element.</p> |
申请公布号 |
CA1225870(A) |
申请公布日期 |
1987.08.25 |
申请号 |
CA19840463306 |
申请日期 |
1984.09.17 |
申请人 |
NCR CANADA LTD - NCR CANADA LTEE |
发明人 |
CALNEK, TREVOR A.;BRAY, JOHN E. |
分类号 |
B41J2/325;B41J7/36;(IPC1-7):B41M5/26 |
主分类号 |
B41J2/325 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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