| 摘要 |
<p>A serial printer is composed of a paper feeding mechanism (7) for feeding paper, a print head (PH) having a plurality of dot printing elements arranged in a feeding direction of the paper, a head moving mechanism (8) for moving the print head (PH) in a direction substantially perpendicular to the paper feeding direction to scan the paper, a raster buffer (14) for storing bit map pattern data for a scanning area of the print head (PH), and a control section for causing the print head (PH) to print a dot image corresponding to the bit map pattern data stored in the raster buffer (14) while moving the print head (PH) in a printing direction and reversing the printing direction after printing the dot image. Particularly, the control section includes a CPU (2) for performing a process of detecting that printing data externally supplied is constructed in a text form containing character codes, determining a coordinate position for each character code, selecting each group of character codes whose printing area is set within the scanning area of the print head (PH), producing bit map pattern data in the raster buffer (14) by converting the character codes of a selected group into a dot data form, and driving the dot printing elements according to the bit map pattern data while moving the print head (PH), and feeding the paper to set the printing area to the scanning area of the print head (PH). <IMAGE></p> |
