| 摘要 |
PROBLEM TO BE SOLVED: To effectively cool an image forming device without increasing the air capacity of a duct for cooling the vicinity of a heat roller fixing device being a heat source. SOLUTION: In this full color image forming device having a movable developing device, the developing device is successively moved every time specified time elapses in the midst of standby, whereby the temperature of the developing device nearest to the fixing device is prevented from rising. Also this is achieved by that the device is provided with a temperature sensor so as to control the movement of the developing device according to temperature. |
