Patent ID: 8824926

Claim:
An image forming apparatus comprising: an image bearing member that has a surface on which an electrostatic latent image is capable of being formed; a developing device that is operable to develop the electrostatic latent image formed on the image bearing member as a toner image; a transferring portion that is operable to directly or indirectly transfer the toner image formed on the image bearing member to a recording medium; a fixing device that is operable to fix the toner image transferred to the recording medium on the recording medium; a cover member configured to be opened to an opened position at which the fixing device is exposed and to be closed to a closed position at which the fixing device is covered in a state in which the fixing device is held in a main body of the image forming apparatus; and an urging portion configured to urge the induction heating portion such that the induction heating portion is located in a position away from a reference position and closer to the cover member than the reference position in the image forming apparatus in a case in which the cover member is in the opened position, the fixing device including: a fixing rotator unit; and an induction heating portion, the fixing rotator unit including: a heating rotary belt; a pressing member that is arranged inside the heating rotary belt and is in contact with an inner surface of the heating rotary belt; a pressurizing rotator that is arranged so as to face the heating rotary belt, the heating rotary belt being sandwiched between the pressing member and the pressurizing rotator, the pressurizing rotator and the heating rotary belt forming a fixing nip therebetween; and a belt guide member that includes a guide portion being in contact with the inner surface of the heating rotary belt and an extending portion that extends from the guide portion, the belt guide member being configured to position the heating rotary belt and to guide rotation of the heating rotary belt, the induction heating portion including: a magnetic-flux generating portion that is arranged so as to face an outer surface of the heating rotary belt and is operable to generate a magnetic flux for causing the heating rotary belt to generate heat; a magnetic core portion configured to form a magnetic path for the magnetic flux generated by the magnetic-flux generating portion; and a support member configured to support the magnetic-flux generating portion and to face the outer surface of the heating rotary belt, wherein the support member includes a positioning portion configured to position the belt guide member by coming into contact with or engaging the extending portion to control a distance between the magnetic-flux generating portion and the outer surface of the heating rotary belt.