| 摘要 |
PURPOSE:To make it possible to perform high speed printing without moving a type simple up and down by an up-and-down driving motor, by setting the type simple so as to incline the same with respect to a platen printing line. CONSTITUTION:A left printing hammer 12 and a right printing hammer 13 are arranged in parallel to the center axis of a platen 4, that is, in a character printing direction and the left printing hammer 12 impacts on the lower stage type engraved to the circumferential outer surface of a simple 3 and the right printing hammer 13 impacts on the upper stage type of said simple 3. A colum nar pre-load roller 14, of which the rotary shaft is parallel to the rotary shaft of the platen 4, is provided so as to be contacted with the outer peripheral surface of the type simple 3 so as to be pressed to the outer peripheral surface of the type simple 3 by a pre-load spring 15. Therefore, the printing line on the platen 4 becomes parallel to the impact positions on the type simple by the right and left hammers 12, 13 and, therefore, the type and the printing line are kept always vertical. |
