Patent ID: 7125093

Claim:
A recording head comprising: (A) a plurality of recording-head substrates, wherein each recording-head substrate comprises: a recording element; a driving circuit driving the recording element; a temperature-detecting element measuring a temperature of the recording-head substrate, the temperature-detecting element outputting at least one of a first signal corresponding to a first temperature and a second signal corresponding to a second temperature; a first detection circuit detecting the first signal from the temperature-detecting element; a second detection circuit detecting the second signal from the temperature-detecting element; a first output terminal coupled to the first detection circuit to output the first signal from the first detection circuit; and a second output terminal coupled to the second detection circuit to output the second signal from the second detection circuit; (B) a first output pad coupled to the first output terminals of the plurality of recording-head substrates, the first output pad outputting a first output signal corresponding to a maximum one of the first signals from the first output terminals; and (C) a second output pad coupled to the second output terminals of the plurality of recording-head substrates, the second output pad outputting a second output signal corresponding to a minimum one of the second signals from the second output terminals.