Ink jet recording apparatus

摘要

A drive signal generator generates a drive signal including a first waveform component for jetting an ink drop to be a micro dot and a second waveform component for jetting an ink drop to be a middle dot. A pressure generating element varies the volume of a pressure generating chamber in accordance with the drive signal to jet an ink drop from a nozzle orifice. An ink drop to be a large dot is jetted from the nozzle orifice when the first waveform component and the second waveform component are consecutively applied to the pressure generating element. A time interval T mu m between an end point of the first waveform component and a start point of the second waveform component is set so as to substantially satisfy the following equation: <DF>T mu m = n DIVIDED 2Tc </DF> here, Tc denotes a natural period of the pressure generating chamber. <IMAGE>