Patent ID: 6193344
Filing Date: 2001-02-27
Classification: B41J

Abstract:
An ink jet recording apparatus for performing recording by supplying heat energy according to driving pulses to an ink to form a bubble based on film boiling, and ejecting the ink from a recording head onto a recording medium on the basis of formation of the bubble, comprising:driving means for supplying the driving pulses, comprised of a plurality of pulses including a main pulse for causing the ink to be ejected, to said recording head for each ejection of the ink; anddriving pulse control means for controlling an amount of the ink to be ejected, by changing a waveform of the driving pulses supplied by said driving means during a recording operation, said driving pulse control means limiting energy of the main pulse in accordance with a start timing of the film boiling which is variable according to a change in waveform of pulses other than the main pulse.