I need a java applet for dot-matrix printer to print on exact positions

Hello As the title mentions, i need an applet to write some text on paper-feed dot-matrix printer on exact positions (as milimeters) I'll pass several positions with text to applet (such as: [20,10,'this is the text']) and it'll write exactly on that position. Need it fast. if you can't finish it in couple hours don't bother with bidding. Thank you.