A method of operating a web printing press is provided. An SST is first identified which has a screen for displaying withdrawal options usable by a customer and a touch input mechanism for receiving user commands. And during a second portion of the supply period, a second current flows through the first winding, through a third winding of the power supply, and to the output node. The combined ingredients and liquid within the bottle may subsequently be shaken without fear or risk of leakage or spillage. Based on the recorded operating position, a target space is derived for placing the distal end of the second robotic surgical tool in close proximity to the location of the distal end of the first robotic surgical tool in the operating position prior to its removal from the cavity. The housing member is then moved to the operating position and the fan is operated in order to cool the heat producing component.