Patent ID: 8872072

Claim:
A heat-producing fixing belt for fixing a toner image on an image support, comprising: a support and having sequentially thereon, a heat-producing layer with a power supplying terminal, an adhering resin layer, an elastic body layer, and a releasing layer, wherein the heat-producing layer comprises a heat-resistant resin and a conductive material, the heat-resistant resin comprises a polyimide resin as a main component, wherein the conductive material is thin-leaf graphite having a volume specific resistance of not less than 10 −6 Ω·cm to less than 10 −2 Ω·cm, wherein the thin-leaf graphite material has a thickness of 0.05 μm to 1.0 μm, an average volume particle diameter of 5.0 μm to 50 μm, and a ratio (D 10 /D 90 ) of the particle diameter (D 10 ) of a volume fraction of 10% to the particle diameter (D 90 ) of a volume fraction of 90% of 0.10 to 0.30, and wherein the heat-producing fixing belt comprises a carbon fiber or a carbon nanofiber 5.0% by mass to 50% by mass based on a weight of the thin-leaf graphite material.