An image forming device includes: an image forming unit that forms an image on a transfer medium in accordance with a JOB; and a controller that controls the image forming unit. The controller is capable of acquiring a read image obtained by reading the image on the transfer medium, and determining failure/no-failure in the image on the transfer medium in accordance with the read image. When the image is determined to have a failure in accordance with the determination, the controller saves, for each JOB, original image information related to at least a failure-detected page in which the failure has been detected in a state in which the original image information is associated with output history information, and makes at least the failure-detected page re-printable in accordance with the associated original image information.