Patent ID: 9727011
Date: 2017-08-08
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising: an endless fixing belt rotatable in a predetermined direction of rotation; an opposed member contacting an outer circumferential surface of the fixing belt to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed; an abutment to contact the fixing belt in an absorption span of the fixing belt in an axial direction thereof where the abutment absorbs heat from the fixing belt; a first heater disposed opposite and heating at least an inboard span of the fixing belt inboard from the absorption span in the axial direction thereof; a second heater disposed opposite and heating at least the absorption span of the fixing belt; a first temperature detector disposed opposite the opposed member to detect a temperature of the opposed member; a power supply connected to the first heater and the second heater to supply power to the first heater and the second heater; and a controller operatively connected to the first temperature detector and the power supply to control the power supply, the controller to control the power supply to supply a non-zero power to the first heater and a non-zero power to the second heater such that a power density of the second heater is greater than a power density of the first heater when the temperature of the opposed member detected by the first temperature detector is smaller than a preset first temperature.