Fixing device including heating body and protector and image forming apparatus
View Patent ↗A fixing device includes an endless belt that supplies heat to a medium, a heating body that heats the endless belt, a protector that senses a temperature of the heating body; and a support member that is positioned between the heating body and the protector. The support member has a recess.
1. A fixing device, comprising:
an endless belt that supplies heat to a medium;
a heating body that heats the endless belt;
a protector that senses a temperature of the heating body; and
a support member that is arranged between the heating body and the protector, wherein
the support member has a recess.
2. The fixing device according claim 1 , wherein
the heating body is embedded into the recess of the support member, and
the protector is in contact with the support member.
3. The fixing device according to claim 1 , further comprising:
a heat diffusion member that stretches the endless belt and transmits heat to the endless belt, wherein
a surface area of the support member is larger than a surface area of the heating body, and
areas of the support member that project from the heating body face the heat diffusion member.
4. The fixing device according to claim 3 , wherein
the heating body contacts the support member and the heat diffusion member, and
the protector contacts the support member.
5. The fixing device according to claim 1 , wherein
the support member is made of aluminum having a heat capacity of 11.75 J/K or more and 24.2 J/K or less.
6. The fixing device according to claim 1 , wherein
the heat diffusion member is positioned inside the endless belt.
7. The fixing device according to claim 1 , wherein
the protector is for preventing the fixing device from being overheated.
8. An image forming apparatus, comprising:
the fixing device according to claim 1 .
9. The fixing device according to claim 1 , wherein
the protector cuts off to the heating member when the temperature of the heating body reaches a predetermined temperature.
10. The fixing device according to claim 1 , wherein
the protector cuts off to the heating member when the temperature of the protector reaches a predetermined temperature.
11. The fixing device according to claim 1 , wherein
the protector contacts the support member.
12. The fixing device according to claim 1 , wherein
the heating body contacts the support member, and
the protector contacts the support member.