Patent ID: 8712273

Claim:
A fixing apparatus configured to make a toner image on a recording material fix onto the recording material, comprising: a cylindrical belt; a plurality of heaters disposed interior to the belt; a nip forming member contacting with an inner surface of the belt; a pressure member forming a nip portion in conjunction with the nip forming member through the belt; a temperature detection member detecting a temperature of the belt or the nip forming member; and a control unit configured to control the plurality of heaters such that a temperature detected by the temperature detection member becomes a target temperature, wherein the apparatus includes, among the plurality of heaters, a first heater and a second heater disposed at a position farther from the nip portion than the first heater, wherein the apparatus can be operated in a first fixing process mode and a second fixing process mode in which the belt is conveyed at a lower speed than in the first fixing mode, wherein the control unit controls the first heater and the second heater so that an amount of heat generation by the second heater is larger than an amount of heat generation by the first heater when the apparatus fixes the toner image on the recording material in the first fixing process mode, and wherein the control unit controls the first heater and the second heater so that the amount of heat generation by the first heater is larger than the amount of heat generation by the second heater when the apparatus fixes the toner image on the recording material in the second fixing process mode.