Patent ID: 7751733

Claim:
An image forming apparatus comprising: a toner image carrier which carries a toner image thereon; a recording medium selection information input section to which recording medium selection information is inputted to select a recording medium to which the toner image carried on the toner image carrier is transferred; a fog controller which sets a fog control parameter value to control a fogging level of the toner image carrier; and an image forming section which forms the toner image to be carried on the toner image carrier based on the fog control parameter set by the fog controller, wherein the fog controller sets the fog control parameter value so that the fogging level of the toner image carrier when the recording medium selection information inputted corresponds to a coated sheet, is lower than that when the recording medium selection information inputted corresponds to a normal sheet, a memory section which stores a reference fog control parameter value and correction values of the reference fog control parameter values corresponding to the coated sheet and the normal sheet, wherein the fog controller sets the fog control parameter values on the basis of the reference fog control parameter value and the correction values of the reference fog control parameter values corresponding to the coated sheet and the normal sheet.