The present invention relates to a method of changing between a plurality N of distinct services, e. A reference datum point in the retainer aligns the circuit board with the retainer while an alignment device aligns the retainer with respect to the supply item that is inserted into a frame within the image forming device having an electrical connector with a plurality of connecting pins. In this the height of the bone plate is chosen such that it is less than or equal to the shaft diameter of the bone screw, whereas the screw head dips into a cut-out of the securing screw and the upper side of the securing screw terminates with the upper side of the bone plate. The transmission device is connected to the dose monitoring unit for transmitting the oral dose of medicine to a distal receiver after receipt thereof. The method includes inverting the electrical components after the viscous material is applied and maintaining the inverted orientation until the viscous material dries or cures enough to maintain definition of its perimeter and edge characteristics. After an additional period of time of 180 seconds, the sum of the pressures in the anode circuit and in the cathode circuit equal to P2 is recorded.