Patent ID: 8644750

Claim:
A fixing device comprising: a rotating fixing body including a resistance heating layer disposed throughout an entire periphery, the resistance heating layer generating heat on application of electric current; and a pressure-applying member pressed against an outer peripheral surface of the rotating fixing body to form a fixing nip, wherein the rotating fixing body further includes: a pair of electrodes configured to supply electric current to the resistance heating layer, each electrode being a layer disposed along a different one of edges of the resistance heating layer throughout an entire periphery, the edges opposing each other in an axial direction of the rotating fixing body across the fixing nip; and a pair of resistor layers each disposed between the resistance heating layer and a different one of the electrodes, an inner edge of each resistor layer being at a location corresponding to or axially more inwardly of an inner edge of the electrode, the inner edges being closer to the fixing nip in the axial direction, and the resistor layers are higher in volume resistivity than the electrodes.