Patent ID: 7357472

Claim:
An inkjet recording apparatus, comprising: an inkjet ejection head in which a plurality of ink ejection ports ejecting ink are arranged; a treatment liquid ejection head in which a plurality of treatment liquid ejection ports ejecting treatment liquid are arranged; a banding information acquisition device which acquires information identifying a location where banding occurs in a dot arrangement recorded into a recording medium by the ink ejected from the ink ejection head; an ink droplet ejection control device which controls a volume of the ink ejected by the ink ejection head according to image data; and a treatment liquid droplet ejection control device which controls droplet ejection of the treatment liquid from the treatment liquid ejection head by controlling a rate of reduction R(Vink) of the treatment liquid at the location where the banding occurs, in accordance with the volume Vink of the ink determined according to the image data, where Ve(Vink) is the volume of the treatment liquid corresponding to Vink at the location where the banding occurs, V0(Vink) is the volume of the treatment liquid corresponding to Vink at at location where the banding does not occur, and R(Vink)=Ve(Vink)/V0(Vink).