there is described an image recording apparatus , which makes it possible to improve the operation efficiency of the host computer for high - speed image recording . the apparatus includes : a recording head having a plurality of ink emitting nozzles ; a plurality of storing sections to store ink emitting data for every unit ink emitting action ; a controller to selectively designate a specific storing section from the plurality of storing sections corresponding to a current progress status of ink emitting actions , and to sequentially read out the ink emitting data from the specific storing section for every unit ink emitting action , in order to depict the specific printing pattern ; a shift register to sequentially store the ink emitting data , read by the controller , for every unit ink emitting action ; and a head driving section to sequentially drive the recording head for every unit ink emitting action , based on the ink emitting data .