A control apparatus, connected to two image forming apparatuses each forming an image on one of a first face and a second face serving as image forming faces of a continuous recording paper, includes a receiving unit that receives, from each image forming apparatus, information regarding a transfer rate affecting condition that affects a difference in toner transfer rates of the image forming faces; a determining unit that determines, based on a standard amount of toner deposit and the transfer rate affecting condition regarding each of the first face and the second face, a target deposit amount representing a target amount of toner deposit in each of the two image forming apparatuses in such a way that the target deposit amounts have a difference corresponding to the difference in the toner transfer rate between the two image forming apparatuses.