An intravascular stent and method for inhibiting restenosis, following vascular injury, is disclosed. During acceptance of fibrous material web from delivery element, elastic transfer belt is arranged to travel at a same speed as or at only a slightly higher speed than delivery element. Feed control amount is multiplied by a ratio between difference XZ and difference YZ. The print engine may detect a printhead type by sending a signal to the printhead and receiving a response. The molecular electric wire comprises a rod-shaped organic molecule and an electroconductive material, the electroconductive material being carried by the rod-shaped organic molecule, and the molecular electric wire circuit is formed by using the molecular electric wire.