Patent ID: 6643491
Filing Date: 2003-11-04
Classification: G03G,H05B

Abstract:
A fixing apparatus, comprising:a first hollow cylindrical roller rotatable in an optional direction; a second roller brought into contact with a nip portion on the outer circumferential surface of said first hollow cylindrical roller with a predetermined contact pressure so as to be rotated in accordance with rotation of the first hollow cylindrical roller, the nip portion into which a transferred material is supplied; an induction heating apparatus arranged within the first hollow cylindrical roller so as to impart a magnetic flux to the first hollow cylindrical roller and, thus, to generate an eddy current within the first roller, thereby generating heat; and a covering member having a predetermined color effective for reflecting an infrared ray radiated from the first hollow cylindrical roller and arranged between the first hollow cylindrical roller and said induction heating apparatus so as to prevent the first hollow cylindrical roller from being brought into direct contact with the induction heating apparatus, wherein a moving amount and moving direction of said covering member are limited by a core member for supporting a coil member of said induction heating apparatus.