In a power source of a welding system, an inverter rectifier output circuit and method for reducing the blocking voltages across saturable reactors associated with a rectifier coupled to a transformer winding in the inverter rectifier output circuit during both turn-on and turn-off transitions of the rectifier. A select circuit includes select interval generation circuitry which determines a number of input data values between each data value to be selected for output from among the ordered stream of input data values. A small partial revolution segments along a revolution spiral is used to calculate in each case per partial revolution segment a plurality of segment images that are converted in a second step to partial images in the target image plane and are assembled with the correct phase to form complete images. The engaging member projects away from the side of the ink cartridge body to which it is disposed.