Method for manufacturing nozzle plate

[0029]An embodiment of the present invention will be described below by referring to the accompanying diagrams. In the following description, suffixes B, Y, M, and C assigned to each reference numeral are for inks of black, yellow, magenta, and cyan color respectively.

[0030]FIG. 1 is a perspective view showing an overall structure of an ink-jet recording apparatus according to the present invention, FIG. 2A is a diagram showing a positional relationship between an ink tank and an ink cartridge, and FIG. 2B is a diagram showing a connecting state of the ink cartridge and an ink supply tube.

[0031]As shown in FIG. 1 and FIG. 2A, an ink-jet recording apparatus 1 includes an ink-jet head 2. The ink-jet head 2 is held by a head holder 3 which relatively moves with respect to a recording paper (not shown in the diagram) as a recording medium. The ink-jet head 2 has nozzle groups which jet inks of plurality of types. The head holder 3 reciprocates along guide rails 4A and 4B extending in a dir