A transporting device includes a support frame, a driving mechanism, a first picking mechanism, and a second picking mechanism. In the tape core wire manufacturing apparatus of the present invention, a coating apparatus that applies a coating material to respective optical fiber core wires has a coating head that moves in the longitudinal direction relatively to the respective optical fiber core wires that have been placed in a row on a coating jig. The mobile computer uses this measured signal strength to determine its location via a signal-strength-to-location table look-up. The reservoir has a means for discharging product contained therein through an orifice in said tip. The switch control is preferably centralized to facilitate effective sharing of the inner capacity of the switch.