METHOD FOR JUDGING ADHESION FAILURE OF INKJET HEAD, METHOD FOR MANUFACTURING INKJET HEAD AND METHOD FOR MANUFACTURING IMAGE FORMING DEVICE

摘要

Existence of an adhesion failure of an inkjet head is highly accurately judged without being affected by a connection status of a measuring terminal and a pair of input/output terminals. The inkjet head is subjected to a measuring step and a judging step. In the measuring step, an antiresonant frequency caused by each pair of input/output terminals of adjacent ink chambers is measured for a plurality of pairs of input/output terminals. In the judging step, based on the antiresonant frequency fluctuation measured in the measuring step, whether there is an adhesion failure between a plurality of members is judged.