US Patent 7438372 Driver device for recording head

There is disclosed a drive circuit of a driver device for a recording head of a recording apparatus, which receives a print data signal so as to drive each of a plurality of recording elements of the recording head in accordance with the print data signal. The print data signal including a selecting signal for selecting one of a plurality of waveform signals representing respective recording modes, and a non-selecting signal. The drive circuit comprises an outputting portion which outputs the selecting signal included in the print data signal, with the selecting signal associated with the corresponding recording element, and a non-selecting signal utilizing portion which uses the non-selecting signal for a purpose other than the selection of one of the waveform signals.