| 摘要 |
PROBLEM TO BE SOLVED: To ensure heating efficiency of a heating roller and suppress adhesion of a foreign substance to a temperature detection part of a non-contact temperature sensor.SOLUTION: A fixing device 7 comprises a heating roller 71, a non-contact temperature sensor 73, an air channel 751, and an air channel 752. The non-contact temperature sensor 73 detects the temperature of the heating roller 71 in a non-contact manner. The air channel 751 is an air channel arranged between the non-contact temperature sensor 73 and the heating roller 71. The air channel 752 is an air channel arranged on the opposite side of the heating roller 71 with respect to the non-contact temperature sensor 73. The wind velocity inside the air channel 751 is larger than the wind velocity inside the air channel 752.SELECTED DRAWING: Figure 4 |
