发明授权
- 专利标题： Method for quality improvement of printing with a thermotransfer print head and arrangement for implementation of the method
- 专利标题（中）： 使用热转印打印头进行打印质量改进的方法和用于实施该方法的布置
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申请号： US11677164申请日： 2007-02-21
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公开(公告)号： US07609284B2公开(公告)日： 2009-10-27
- 发明人: Olaf Turner , Ratmund Nisius , Frank Reisinger , Sabine Roth
- 申请人： Olaf Turner , Ratmund Nisius , Frank Reisinger , Sabine Roth
- 申请人地址： DE
- 专利权人： Francotyp-Postalia GmbH
- 当前专利权人： Francotyp-Postalia GmbH
- 当前专利权人地址： DE
- 代理机构： Schiff Hardin LLP
- 优先权： DE102006009334 20060301
- 主分类号： B41J2/35
- IPC分类号： B41J2/35 ; B41J2/38
摘要：
In a method and apparatus for improving the printing with a thermotransfer print head, an energy value is calculated before the printing process according to different types to be implemented when a dot is to be printed. Energy values also are calculated for the heating elements at the ends of the row of heating elements of the high-resolution thermotransfer print head, so as to activate these heating elements even though in heating phases no dot to be printed at the border external to the barcode image. Additionally, those heating elements that do not lie in the two border regions of the heating element row are also activated for a limited time duration, the aforementioned time duration directly preceding the printing of a barcode image. A microprocessor calculates the energy values and is connected with a pixel energy memory for non-volatile buffering of the data that are transferred into a print data controller and are converted into a print pulse duration.