An image forming apparatus and an image forming method

A method and an image forming apparatus forming an image, the image forming apparatus comprising: an electrostatic latent image forming portion, is formed on an image carrier an electrostatic latent image; a developing unit, a voltage is applied, through the two-component developer, the electrostatic latent image to form a color toner image; means information acquisition unit acquires information about the image forming apparatus, i.e., the device information; toner image condition information acquiring unit, using the device information, acquiring toner image condition information; reference toner-image forming unit, based on the toner image condition information, controlling the electrostatic latent image forming portion and the developing portion to form a reference color toner image on the image carrier; toner deposit amount information acquisition section for acquiring a color toner and the reference toner image is formed by reference to the toner-image forming portion information relating to the amount of deposition; supply amount correcting section using the information relating to the acquisition unit through the toner deposit acquired information amount of toner adhesion, amount of toner supplied to the developing unit to provide the correction.