Fixing device, and image forming apparatus
View Patent ↗A fixing device includes a light irradiation portion that irradiates a recording medium transported to a predefined position with light, a power supply member that is disposed at a position which is irradiated with light with a first intensity of light emitted from the light irradiation portion in a state in which the recording medium is disposed at the predefined position and which is irradiated with light with a second intensity larger than the first intensity of light in a state in which the recording medium is not disposed at the predefined position, and that changes a physical property thereof so as to reduce the supply of power when the power supply member is continuously irradiated with the light with the second intensity for a predefined time or more, and a power supply portion that supplies power to the light irradiation portion via the power supply member.
1. A fixing device comprising:
a light irradiation portion that irradiates a recording medium transported to a predefined position with light;
a power supply member that is disposed at a position which is irradiated with light with a first intensity of light emitted from the light irradiation portion in a state in which the recording medium is disposed at the predefined position and which is irradiated with light with a second intensity larger than the first intensity of light emitted from the light irradiation portion in a state in which the recording medium is not disposed at the predefined position, and that changes a physical property thereof so as to reduce the supply of power when the power supply member is continuously irradiated with the light with the second intensity for a predefined time or more; and
a power supply portion that supplies power to the light irradiation portion via the power supply member.
2. The fixing device according to claim 1 , wherein the power supply member is disconnected by being irradiated with the light with the second intensity.
3. The fixing device according to claim 1 , wherein the power supply member is disconnected due to deformation according to an increase in temperature, and is connected again when temperature decreases.
4. An image forming apparatus comprising:
an image forming portion that forms a toner image on a recording medium; and
the fixing device according to claim 1 that fixes the toner image formed by the image forming portion onto the recording medium.
5. An image forming apparatus comprising:
an image forming portion that forms a toner image on a recording medium; and
the fixing device according to claim 2 that fixes the toner image formed by the image forming portion onto the recording medium.