A density correction system includes a conveyance unit that conveys a recording medium, a first ink ejection unit that ejects ink in a multi-drop driving system to the recording medium based on image data, a second ink ejection unit that ejects ink in the multi-drop driving system to the recording medium based on the image data and in which a volume per one drop is smaller than that of the first ink ejection unit, and a control unit that corrects number of drops from the first ink ejection unit and number of drops from the second ink ejection unit, which constitute a droplet amount for one pixel on the recording medium subjected to image formation.