发明授权
- 专利标题： Thermal printer and method of controlling a thermal print head
- 专利标题（中）： 热敏打印机和控制热打印头的方法
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申请号： US95880申请日： 1993-07-22
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公开(公告)号： US5365257A公开(公告)日： 1994-11-15
- 发明人: Masahiro Minowa , Naoki Kobayashi , Satoshi Nakajima , Tadashi Furuhata
- 申请人： Masahiro Minowa , Naoki Kobayashi , Satoshi Nakajima , Tadashi Furuhata
- 申请人地址： JPX Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-258212 19891003; JPX1-265675 19891012; JPX1-265676 19891012
- 主分类号： B41J2/36
- IPC分类号： B41J2/36 ; B41J2/365 ; B41J2/375
摘要：
A thermal printer drive control apparatus of the type having a thermal print head comprising a plurality of heating elements provides for reliable cost effective thermal head temperature detection by means of producing multiple, different current flow intervals that are applied to binary data to produce data drive signals for the heating elements. The current flow intervals are based upon historical drive data derived from linear temperature conditions sensed at the thermal print head. This information is converted to a digitized representation for use in conjunction with a table placed in memory that provides predetermined current flow intervals based upon the digitized representation. Further, circuitry is provided to produce heating element drive signals having pulse widths based upon the determined current flow intervals.
公开/授权文献
- US5973287A Resistance welding method and apparatus used in the method 公开/授权日：1999-10-26
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