Patent ID: 6874865

Claim:
A printer head comprising: a plurality of printer head chips each comprising a plurality of ink compressing chambers which include heat-generating resistors and which are disposed side by side on a substrate, each of the plurality of printer head chips including an ink flow path groove which is provided in the substrate, which connects to each of the corresponding ink compressing chambers, and which is used to supply ink to each of the corresponding ink compressing chambers, and the plurality of printer head chips being used to discharge the ink inside the plurality of ink compressing chambers from corresponding nozzles by driving the heat-generating resistors; one nozzle sheet having the plurality of printer head chips disposed thereat with the ink flow path grooves being connected, the nozzle sheet having the nozzles formed at locations corresponding to locations of the heat-generating resistors; wherein the plurality of printer head chips form a first printer head chip group and a second printer head chip group disposed at the nozzle sheet, the first printer head chip group including printer head chips that are disposed in a line in a longitudinal direction thereof, and the second printer head chip group being disposed beside the first printer head chip group; first ink supplying means for supplying ink to the ink flow path groove of each of the printer head chips of the first printer head chip group; and second ink supplying means for supplying ink of a color which is different from a color of the ink supplied from the first ink supplying means to the ink flow path groove of each of the printer bead chips of the second printer head chip group.