. . "BRIEF DESCRIPTION OF THE DRAWINGS [0015]FIG. 1 is a perspective view showing a portion of a multi-nozzle ink-jet recording head used in an embodiment of an ink-jet recording apparatus according to the present invention; [0016]FIGS. 2A and 2B respectively are a perspective view and a cross sectional view showing a heater element substrate structure of the recording head shown in FIG. 1; [0017]FIGS." . . .