| 摘要 |
PURPOSE:To obtain the title printer capable of performing accurate punctuation printing of printing data at a desired data position without requiring the estimation of an actual printing position, by displaying printed data and unprinted data on a display part in a discriminated state when printing data such as a character is displayed and printed through a printing head by the movement of an apparatus main body. CONSTITUTION:In performing printing, a printing key is operated to select, for example, left margin printing from among left and right margin printing- modes. At this time, when data to be printed is printed an first, an one-character printing detection signal C is sent to a control part 11 from a thermal head driving circuit 20 and the control part moves the display address with respect to display RAM 16 by (+1) to scroll the data of one character displayed on a display part 22 and the data are successively subjected to left margin printing. Continuously, the printed data are successively erased from the display part 22 and only unprinted data are displayed. By this method, the printing data can be punctuated at an accurate position.
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