Image fixing device of image forming apparatus

Details Image fixing device of image forming apparatus Image fixing device of image forming apparatus

2006-08-22

2006-08-22

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Fixing

C219S216000

Reexamination Certificate

active

07095973

ABSTRACT:
An image fixing device of an image forming apparatus includes a pressure roller and a heating roller to rotate as if it is in contact with the pressure roller, with a paper fed therebetween, to fix a developed image to the paper by applying heat generated by a heating member installed inside therein. The heating roller is a heat pipe of a closed tube type. The heat pipe of the closed tube type has a fluid poured inside of a closed space thereof. The heating member is an induction heating body to generate a magnetic field to the heating roller. The heat generated by induction heating is applied to the heating roller including the heat pipe to keep a temperature around the surface thereof at a predetermined uniform level.

REFERENCES:
patent: 6580895 (2003-06-01), Hirst et al.
patent: 6665515 (2003-12-01), Lee
patent: 6721530 (2004-04-01), Hirst et al.
patent: 6853831 (2005-02-01), Hirst et al.
patent: 2004/0258440 (2004-12-01), Romem

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