| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device which is capable of eliminating a useless consumption of oil and improving the image quality and serviceability by making an oil to be applied to a fixing roller uniform over the entire part. SOLUTION: An oil coating applicator has a heating roller, a fixing roller and pressurizing roller which rotate in pressure contact with each other, the endless fixing belt which is stretched between the heating roller and the fixing roller or to either or between both of the heating roller and the pressurizing roller, a heater for heating which heats the fixing belt within at least the heating roller, an oil coating application roller which is disposed to either on the fixing roller side or on the pressurizing roller side and an oil supply roller which rotates in pressure contact with this oil coating application roller, and the lengths of the respective rollers are so selected that the relation between the length Lb of the oil coating application roller and the length La of the oil supply roller is Lb<La, when the length of the oil coating application roller is defined as Lb and the length of the oil supply roller as La.
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