Abstract: The specification discloses a screen printing machine comprising a platen connected with a frame, and a printing head rotatably mounted on the frame and having at least two printing screens pivotally connected therewith for pivoting the same between a printing position, and a raised storage position. The printing head is slideably and removably connected with the frame for selectively locating a pattern on the article to be printed, and/or bodily removing the printing head for replacement with an alternate printing head assembly having a different pattern therein, without disturbing the registry between the mating designs in the printing screens.