Patent ID: 8919906

Claim:
An inkjet recording apparatus comprising: a recording unit including at least three nozzle array units, each corresponding to a first color ink, a second color ink, and a third color ink respectively, wherein each of the nozzle array units includes a plurality of nozzle arrays in which a plurality of nozzles are arrayed in an arraying direction, wherein the nozzle arrays in each of the three nozzle array units are arranged in the arraying direction such that predetermined number of nozzles arrayed in an end portion of a first nozzle array of the plurality of nozzle arrays and predetermined number of nozzles arrayed in an end portion of a second nozzle array, of the plurality of nozzle arrays, which is adjoined to the first nozzle array and shifted to the first nozzle array in the arraying direction form an overlapping portion which is able to eject ink to a same region on a recording medium in the arraying direction; and a controlling unit configured to control ejection of ink from the recording unit to the recording medium for forming an image on the recording medium based on data of image while the relative movement of the recording unit and the recording medium in a moving direction that intersects to the arraying direction, wherein a number of colors represented by using the first color ink and the second color ink in representable colors that are representable based on the data by the inkjet recording apparatus is fewer than a number of colors represented by using the first color ink and the third color ink in the representable colors, and wherein a width with which the overlapping portion of the nozzle array unit for the first color ink and the overlapping portion of the nozzle array unit for the second color ink overlap in the arraying direction is larger than a width with which the overlapping portion of the nozzle array unit for the first color ink and the overlapping portion of the nozzle array unit for the third color ink overlap in the arraying direction.