| 摘要 |
<p>The present invention aims at detecting abnormality of a contacting-and-separating state of an external heating means of an image heating apparatus, and therefore the mage heating apparatus according to the present invention has an image heating rotation member, rotatable, for heating an image on a recording material, a driving device for rotationally driving the image heating rotation member, an external heating member including an exothermic member and heating the image heating rotation member in a way that contacts the image heating rotation member, a contacting-and-separating device for making the external heating member (29) contact and separate from the image heating rotation member, a conduction control device for controlling conduction to the exothermic member so that a temperature of the external heating member becomes a target temperature, a contacting-and-separating state detecting device for detecting a contacting-and-separating state of the external heating member (29) with respect to the image heating rotation member, and an abnormality detecting device for detecting abnormality of the contacting-and-separating state of the external heating member (29) rendered contacting and separating by the contacting-and-separating device, on the basis of the detection by the contacting-and-separating state detecting device. <IMAGE></p> |
