Patent ID: 7890010

Claim:
A fixing device for a color image forming apparatus, comprising: a first roller that heats a medium bearing a toner image; a first heater that causes a heat on the first roller; a second roller that pinches the medium together with the first roller; a second heater that causes a heat on the second roller; and a control unit configured to control the first heater to cause a heat on the first roller in a color mode and a monochromatic mode, to control the second heater to cause a heat on the second roller in the color mode, to control the second heater to halt to cause a heat on the second roller when a temperature of the first roller is a first temperature or higher and a temperature of the second roller is a second temperature or higher in the monochromatic mode, and to control the second heater to cause a heat on the second roller when the temperature of the second roller is lower than the second temperature in the monochromatic mode.