| 摘要 |
<p>PURPOSE:To reduce a minimum time width for controlling a head to perform a high-speed printing by a method wherein a pulse width to be applied to a thermal head is decomposed into a main pulse and a plurality of correction pulses, and the first head pulse and the last head pulse serve as the correction pulses. CONSTITUTION:For the purpose of controlling a pulse width to be applied to a head 1 to be firstly colored, the printing pulse width is decomposed into a main pulse (S1) and correction pulses (S2, S3). At this time, the correction pulses (S2, S3) are determined by setting the content of data (D3, D1) to be transmitted to the head to 1 or 0 in accordance with the control content of the head. For example, when an adjacent correction is to be carried out, the data content D2 of the main pulse is set to 1 and both the data content D3, D1 of the correction pulses are set to 1 in the absence of color forming with respect to both the adjacent ends of the heads to be colored, and an energy is applied to the head. On the other hand, the data content of the main pulse is set to 1 and both the correction pulse data are set to 0 in the presence of color forming with respect to both the adjacent ends, an energy is applied to the head.</p> |
