Patent ID: 9075358
Filing Date: 2015-07-07
Classification: G03G

Abstract:
1. An image heating device comprising: a belt configured to heat an image on a sheet in an image heating operation; a light emitting portion disposed at one end of the belt in a widthwise direction of the belt and configured to emit light from the one end of the belt to the other end of the belt such that the light passes near an outer peripheral surface of the belt; a light receiving portion disposed at the one end of the belt and configured to receive the light from the light emitting portion; a reflecting portion disposed at the other end of the belt and configured to reflect the light from the light emitting portion to the light receiving portion; and a control portion configured to control, according to an output of the light receiving portion by receiving the light from the light emitting portion via the reflecting portion, whether to prohibit the image heating operation.