A frequency divider circuit for providing a divided clock signal having a frequency that is an odd integer factor less than the frequency of an incoming system clock signal. A first waveform source defines a first aspect of a drive waveform for the set of ejection elements and for other ejection elements. An insulating fixing member is used to support the core and the outgoing conductors. The gate electrode is positioned in the second groove. The roller bearings pump the oil from the chamber back to the fluid reservoir. The pre-discharge is performed immediately before recording per line, and the number of discharges is set to be larger for the electrothermal converting element on the side away from the discharge port than the number of discharges for the electrothermal converting element on the side near to the discharge port.