Patent ID: 11934123
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A fixing device comprising:
a fixing belt having a pressing surface;
a pressing roller coming into contact with the pressing surface; and
a heating part which heats the fixing belt, wherein
the heating part includes:
a heater extending in an axial direction of the pressing roller;
a plurality of temperature sensors;
a heater holding member which holds the heater so as to come into contact with a backside of the pressing surface of the fixing belt; and
a sensor holding member which holds the temperature sensors at intervals in the axial direction between the heater holding member and the sensor holding member, wherein
the heater has a first surface facing the heater holding member,
the heater holding member has observation holes which are disposed at a plurality of positions separate from each other in the axial direction and through which the first surface of the heater is exposed,
the heater holding member has a guide part which positions the sensor holding member with respect to the heater holding member,
the sensor holding member has an engagement part engaged with the guide part,
the sensor holding member holds each of the temperature sensors at a position corresponding to each of the observation holes by engagement of the engagement part with the guide part,
the heating part includes a first electric wiring and a second electric wiring which are connected to the temperature sensors,
the sensor holding member is provided with a wiring storage space in which the first electric wiring and the second electric wiring are stored,
the sensor holding member includes:
a partition wall portion partitioning the wiring storage space into an upper electric wiring storage space and a lower electric wiring storage space; and
a notch through which the first electric wiring and the second electric wiring are passed,
the first electric wiring has a portion stored in the upper electric wiring storage space, a portion stored in the lower electric wiring storage space and a portion passed through the notch, and
the second electric wiring has a portion stored in the lower electric wiring storage space, a portion stored in the upper electric wiring storage space and a portion passed through the notch.