Ink jet recording method and apparatus

An ink jet recording method wherein an ink is ejected through a plurality of ejection outlets, comprising the steps of:

• providing a recording head having a plurality of heat generating resistors for producing thermal energy for ejecting a liquid and a single silicon substrate having a width not less than 30 mm and having a plurality of electrodes for supplying electric signals for driving the heat generating resistors at a recording density k, where k is measured in dots per mm, and a plurality of ink passages in association with said heat generating resistors;
• applying, through a given said electrode, to at least one said heat generating resistor, the drive signal satisfying the following relationship;
• W.times.tp.times.f.times.k<1.30 w.times.sec/pulse.times.pulse/sec.times.dots/mm,
• where W is supplied electric power measured in watts, tp is a width of a driving pulse in seconds per pulse, and f is a driving frequency measured in pulses per second.