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US 5,493,379 AGranted
Heater having contacts for AC and DC
AssigneeCanon Kabushiki Kaisha
InventorsAkira Kuroda, Nobukazu Adachi, Takeshi Sugita, Akira Yuza
Life of this patent
Estimating the term…
Abstract
A heater with a base member has a resistor extended along a length of the base member and generating heat upon electric power supply thereto. Also provided is a temperature detecting element for detecting the temperature of the base member, and first and second electric power supply contacts for supplying electric power to the resistor, the first contacts being provided only adjacent a first longitudinal end of the base member and the second contacts being provided only adjacent a second longitudinal end of the base member.
Claims12
A heater comprising:
- a base member having first and second longitudinal ends;
- a resistor extended along a length of said base member, said resistor generating heat upon electric power supply thereto;
- temperature detecting element for detecting a temperature of said base member;
- first electric power supply contacts for supplying electric power to said resistor, said first contacts being provided only adjacent the first longitudinal end of said base member;
- second electric power supply contacts for supplying electric power to said temperature detecting element, said second contacts being provided only adjacent the second longitudinal end of said base member.
2 more elements
An image fixing apparatus, comprising:
- a heater;
- a film in slidable contact with said heater;
- a back-up member cooperative with said heater to form a nip therebetween with said film therebetween;
- wherein a recording material is nipped and moved by said nip so that an image is fixed on the recording material;
- said heater including a base member having first and second longitudinal ends;
- a resistor extended along a length of said base member, said resistor generating heat upon electric power supply thereto;
- temperature detecting element for detecting a temperature of said base member;
- first electric power supply contacts for supplying electric power to said resistor, said first contacts being provided only adjacent said first longitudinal end of said base member;
- second electric power supply contacts for supplying electric power to said temperature detecting element, said second contacts being provided only adjacent said second longitudinal end of said base member.
6 more elements
Dependencies are inferred from the claim text.