Fixing device and image forming apparatus

Details Fixing device and image forming apparatus Fixing device and image forming apparatus

2008-05-27

2008-05-27

Lee, Susan (Department: 2852)

Electrophotography

Image formation

Fixing

C219S619000

Reexamination Certificate

active

11384959

ABSTRACT:
A fixing device is provided with a fixing member for thermally fixing a transferred toner image to a transfer material, and a pressing member held in contact with the fixing member to form a nip portion where the transfer material is caused to pass through, wherein the fixing member includes a nonmagnetic metal layer made of nonmagnetic metal, a temperature-sensitive metal layer made of temperature-sensitive metal, and an induction coil for induction heating by supplying magnetism toward the nonmagnetic metal layer and the temperature-sensitive metal layer. The thickness of the nonmagnetic metal layer is set such that an amount of heat produced by the fixing member is larger than an amount of heat evolved singly by the temperature-sensitive metal layer.

REFERENCES:
patent: 6643491 (2003-11-01), Kinouchi et al.
patent: 7045749 (2006-05-01), Kinouchi et al.
patent: 9-127810 (1997-05-01), None
patent: 2000030850 (2000-01-01), None
patent: 2004-151470 (2004-05-01), None

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