an image forming apparatus having : an image carrier that moves in a direction while holding a toner image on its surface ; a cleaner that is located downstream from a transfer point where a toner image is transferred from the image carrier , with respect to the moving direction of the image carrier , to remove residual toner and other residues from the surface of the image carrier ; a lubricant supply device for supplying a lubricant to the surface of the image carrier ; and a flattener for spreading out the lubricant supplied from the lubricant supply device over the surface of the image carrier by pressing its edge portion against the surface of the image carrier ; wherein the flattener has an impact resilience within a range of 48 % to 68 % under temperature of 25 ° c ., and the edge portion of the flattener is arranged counter the moving direction of the image carrier .