Patent ID: 8238775

Claim:
An image heating apparatus comprising: a heat member that heats an image on a recording material; a pressure member that forms a nip portion for pinching and conveying the recording material with the heat member; a first temperature detection element that detects a temperature of the heat member in a region for feeding a recording material having the smallest size which can be used by the image heating apparatus, in a direction perpendicular to a conveyance direction of the recording material; a second temperature detection element that detects a temperature of the heat member in a region outside of the region for feeding the recording material having the smallest size in the direction perpendicular to the conveyance direction of the recording material; and a control part that controls power supplied to the heat member, wherein in a heat process period in which the image is heated by the nip portion, the control part controls the power supplied to the heat member such that a temperature detected by the first temperature detection element keeps a target temperature, wherein in a warm-up period in which the power is supplied to the heat member so that the temperature of the heat member reaches the target temperature, in a case where the temperature detected by the second temperature detection element is higher than the temperature detected by the first temperature detection element, the control part controls the power supplied to the heat member so that the temperature detected by the second temperature detection element reaches the target temperature, and until the temperature detected by the first temperature detection element reaches the target temperature after the temperature detected by the second temperature detection element reaches the target temperature, the control part controls the power supplied to the heat member so that the temperature detected by the second temperature detection element keeps the target temperature.