An image forming apparatus is provided. By encouraging an appropriate leakage flux around a winding, a leak impedance can be achieved which may be used, according to the invention, to limit the maximum current in the winding as a matter of machine design. The cap may be fixed in one end of the connector body. The method further comprise adjusting 106a at least one handover related parameter, in order to enable a fast handover, when it is determined that the mobile terminal has moved in the predefined way in relation to the at least one potential target cell. Methods for the preparation of the technetium complexes are also described.