Abstract: An apparatus for positioning a carrier means along a line of print in either of two directions. The carrier means is positioned by a D.C. motor which is driven by a pair of current driver circuits, one of which controls the flow of drive current in a forward direction and the other of which controls the flow of current in the reverse direction. The motor is capable of driving the carrier means at a first predetermined high speed when it is determined that the desired destination carrier position is more than a predetermined number of carrier positions from the present carrier position and at a second predetermined low speed when the desired destination carrier position is less than or equal to a predetermined number of carrier positions from the present carrier position. An electronic tachometer means operates to maintain a relatively constant speed while operating in the predetermined high speed state and while operating in the predetermined low speed state.