Image fixing device with heater responsive to thermal stress

Details Image fixing device with heater responsive to thermal stress Image fixing device with heater responsive to thermal stress

1994-06-03

1997-01-07

Ramirez, Nestor R.

Geometrical instruments

200 6108, 219216, 337403, 338307, 399 33, G03G 1520, H01H 8500

Patent

active

055922767

ABSTRACT:
A heater includes a base plate, and a resistor, extending in a longitudinal direction of the base plate, for generating heat when a power supply is applied thereto. A recess, such as a hole or groove, is formed in the base plate in a longitudinal portion of the resistor, to bias the base plate to break at the longitudinal portion and to open a circuit including the power supply and the resistor, to safely prevent overheating or smoking of the heater.

REFERENCES:
patent: 2263752 (1941-11-01), Babler
patent: 3978443 (1976-08-01), Dennis et al.
patent: 4208645 (1980-06-01), Harmon et al.
patent: 4562509 (1985-12-01), Lindgren
patent: 4961065 (1990-10-01), Taylor
patent: 5083168 (1992-01-01), Kusaka et al.
patent: 5084693 (1992-01-01), Taylor et al.

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