An image forming apparatus provided with an image forming section, including: a toner density detection section which detect a density of a toner image transferred onto an intermediate transfer member; a density correction section which executes density correction processing of the toner image forming in a case where a density value detected by the density detection section does not satisfy a predetermined condition; a toner remaining amount detector which detects a toner remaining amount of a toner accumulation section; and a determination section which determines that failure has occurred in the exposure section if the density value detected by the density detection section does not satisfy the predetermined condition after the density correction processing executed by the density correction section is terminated, and the toner remaining amount detected by the toner remaining amount detector is greater than a predetermined remaining amount.