| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat-fixing device that has high heating efficiency and low power consumption.SOLUTION: A heat-fixing device comprises a selective radiation heat generating source 10', a heating roller 20 that is heated to a temperature appropriate to thermal press-bonding with the selective radiation heat generating source 10' as a central axis, and a pressure roller 30 that comes into pressure contact with the heating roller 20. The heating roller 20 and pressure roller 30 that are brought into pressure contact with each other form an appropriate nip part 40. A recording medium 50 having a toner image 50a formed thereon is held at the nip part 40, and consequently, the toner image 50a is heat-fixed to the recording medium 50 by application of heat and pressure. The heating roller 20 comprises a base material 21, elastic layer 22, and surface layer 23. The pressure roller 30 comprises a base material 31 and elastic layer 32. The selective radiation heat generating source 10' includes a selective radiation control layer that acts to absorb light closer to a short-wavelength side than a predetermined infrared wavelengthλand reflect light closer to a long-wavelength side than the infrared wavelengthλ.</p> |
