PURPOSE: To contrive reductions in magnetic interference, a noise and a peak current in a dot printer.

CONSTITUTION: Fitting faces 11a, 11b of a carriage 10 are tilted, an arrangement of the tip of a printing wire 2 of an ordinary horizontal fitting type printing head 1 is tilted and a radiator is fitted to a printing head main body 1-a at a tilting angle setting off the tilting angel. With this construction, tilting of the arrangement of the tip of the printing wire 2 can be performed easily at a low cost without imparting a malaise to a user and reductions in magnetic interference, a noise and a peak current can be contrived by reducing a number of simultaneous driving of the printing wire. Then a high-quality dot printer which neither changes the tilting angle nor performs deterioration that a letter is tilted during long time use can be realised.