Patent ID: 7538918

Claim:
An image forming apparatus comprising: a toner image forming device configured to form a toner image on a recording material; a detector configured to detect density of the toner image formed by said toner image forming device; a gradation control executing device configured to execute a gradation control in which an image forming condition is corrected by detecting density of a predetermined gradation pattern, formed by said toner image forming device, by said detector; an operating panel configured to permit designation by an operator of one of a plurality of modes including an image quality priority mode, in which a first toner image is formed under the image forming condition corrected by the gradation control after a main power switch is turned on, and a speed priority mode, in which the first toner image is formed under a predetermined image forming condition without executing the gradation control after the main power switch is turned on; and a controller configured to control said toner image forming device based on the designated mode.