further preferable to add a recovery system or a preliminary auxiliary system for a recording head as a constituent of the recording apparatus because they serve to make the effect of the present invention more reliable examples of the recovery system are a capping means and a cleaning means for the recording head and a pressure or suction means for the recording head examples of the preliminary auxiliary system are a preliminary heating means utilizing electrothermal transducers or a combination of other heater elements and the electrothermal transducers and a means for carrying out preliminary ejection of ink independently of the ejection for recording these systems are effective for reliable recording the number and type of recording heads to be mounted on a recording apparatus can be also changed for example only one recording head corresponding to a single color ink or a plurality of recording heads corresponding to a plurality of inks different in color or concentration can be used in other words the present invention can be effectively applied to an apparatus having at least one of the monochromatic multi color and full color modes here the monochromatic mode performs recording by using only one major color such as black the multi color mode carries out recording by using different color inks and the full color.