This invention relates to a method and apparatus for removing surface contamination on a flexible circuit 34 for an inkjet printer cartridge by pulsed laser irradiation in air. In this case, the drive system corrects measurement errors caused due to a variance of the arm member included in the measurement results of the first measurement system, using the measurement results of the second measurement system. The power detector detects energy of power stored in the capacitor. The processor is programmed to determine the denomination of a bill and determine if an output receptacle is associated with the denomination of the bill. A ladder stabilization bracket that affixes the ladder to a parapet or balcony can be employed for additional stability of the device. A method of generating antitoxin composed of highly-pure antibodies is described as an important defense against naturally-occurring plant andor bacterial toxins.