The present invention involves a method for generating a photoresist image on a substrate. The machining system has one or more machining stations with robots and at least one rotation or turning station, which has at least two work stations for carrying out different operations simultaneously. A voltage value generated in the reference resistor element is measured by a voltage measuring circuit. A pickup or transducer may be used in the stop. The mounting frame perimetrically surrounds the peizo-diaphragm and enables attachment of the piezo-diaphragm to a housing.