Fixing device and image forming apparatus using the same

Details Fixing device and image forming apparatus using the same Fixing device and image forming apparatus using the same

2005-05-31

2005-05-31

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Fixing

C219S619000, C399S330000

Reexamination Certificate

active

06901235

ABSTRACT:
A fixing device is formed by using a heat generating roller having magnetism and electric conductive characteristics and a magnetizing coil opposed to the outer peripheral of the heat generating roller and generating heat on the heat generating roller by an electromagnetic induction. The magnetizing coil is formed in such a manner that 60 copper wires whose surfaces are insulated and have the outside diameter of 0.2 mm are bundled to form a bundle of wires and the bundle of wires is drawn in the direction of rotation axis of the heat generating roller and wound in the direction of a circumference of the heat generating roller. Further, the magnetizing coil is disposed so that the bundles of wires mutually come into close contact along the circumference of the heat generating roller to cover the upper half of the heat generating roller.

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