Patent ID: 7334859

Claim:
An inkjet recording apparatus, comprising: a plurality of full-line recording heads provided for a plurality of ink colors, each of the plurality of full-line recording heads having one or more rows of nozzles in which a plurality of nozzles for discharging ink are arrayed across an entire width of a printing medium in a direction substantially orthogonal to a conveyance direction of the printing medium; a plurality of image-reading devices provided for the plurality of ink colors, the plurality of image-reading devices reading an image formed on the printing medium with ink ejected from the plurality of recording heads provided for the colors, the plurality of image-reading devices being arranged on a downstream side in the conveyance direction of the printing medium with respect to the recording heads of the respective corresponding colors, a determination device which determines a discharge-defective nozzle from the image read by the image-reading devices; a discharge defect countermeasure device which carries out processings, including at least one processing selected from an image correction and an action to restore the discharge-defective nozzle when the discharge-defective nozzle is determined by the determination device, wherein the determination device determines the discharge-defective nozzle within each print head by way of an actual print job read by the image-reading devices, and the discharge defect countermeasure device performs control to cause another normal nozzle from the same recording head as the discharge-defective nozzle, to make a substitute election for the determined discharge-defective nozzle.