A method and an apparatus are provided for marking a sheet-shaped workpiece using a marking tool. In embodiments, methods of the present disclosure include systems which may be utilized to predict the color properties of a violet toner, thereby permitting adjustment of the pigment loading andor target mass per unit area. There is also a pointer-terminal converter that converts a pointer into a set of a terminal and condition in the internal representation generated by the language analyzer. The received digital data is automatically stored on a WORM storage device. A tubular member of the housing terminates in a pin that punctures the gas device when the tubular member is further threaded into a connector sleeve of the housing, and in so doing, releases the gas bubbles for heads up surface positioning for a disoriented water victim, while the chemical illuminance from the light device provides illumination therefor. The active regions of both chips can be less than 50 microns away from a heat sink.