numbers in these drawings and the same contents are described only once to avoid the duplication in fig1 through fig5 the ink jet recording apparatus has recording heads 1 for discharging ink in a plurality of colors recording heads 1 comprise a black recording head for discharging black ink a yellow recording head for discharging yellow ink a magenta recording head for discharging magenta ink and a cyan recording head for discharging cyan ink each recording head has a plurality of nozzles not shown for discharging ink ink tanks 16 that reserve the black ink yellow ink magenta ink and cyan ink respectively and discharge the inks to respective recording heads 1 are disposed over the recording heads recording heads 1 and ink tanks 16 are disposed on carriage 2 in parallel in the moving direction of carriage 2 recording heads 1 may be independent or unitized the number of colors is four in the present invention however the number may be five or six here the black ink the yellow ink the magenta ink and the cyan ink must be employed so that the number of colors must be four or more respective numbers of recording heads 1 ink tanks 16 and feed tubes 17 for supplying inks from the outside to ink tanks 16 are increased or decreased depending on the number of colors a position corresponding to each nozzle of each recording head 1 has a pressure chamber.