Patent ID: 6149259
Filing Date: 2000-11-21
Classification: B41J

Abstract:
An ink jet recording apparatus comprising:a recording head having a plurality of ejection orifices for ejecting an ink, and a common ink chamber, communicating with said plurality of ejection orifices, for supplying the ink to said plurality of ejection orifices;driving means for divisionally driving said plurality of ejection orifices, said plurality of ejection orifices being divided into groups each comprising a plurality of ejection orifices capable of performing ejection simultaneously, at least one of ejection orifices adjacent a particular ejection orifice driven in one group being driven as another group to be non-simultaneously driven; anddriving control means for changing a driving order of ejection performed for each group by said driving means,wherein said driving control means changes the driving order in units of a period during which all of said plurality of ejection orifices for recording are generally to be driven.