Fixing device for image forming apparatus

Details Fixing device for image forming apparatus Fixing device for image forming apparatus

2011-04-12

2011-04-12

Porta, David P (Department: 2884)

Electrophotography

Having particular structure

Modular or displaceable

C399S067000, C399S330000, C219S216000

Reexamination Certificate

active

07925185

ABSTRACT:
A fixing device according to an embodiment of the invention is provided with a center coil and a side coil to induction heat a metal roller which supports a belt. An auxiliary pressurizing member which is adjacent to an opposing roller which supports the belt and presses the belt against a heat roller is provided. The distance from the center position of induction heating of a heat roller to an entrance of a nip is equalized to the distance from the center position of induction heating of the metal roller to the entrance of the nip. The distance from the temperature reading position of the heat roller to the center position of induction heating of the heat roller is equalized to the distance from the temperature reading position of the belt to the center position of induction heating of the metal roller.

REFERENCES:
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patent: 2005/0191097 (2005-09-01), Yoshida et al.
patent: 2003-345152 (2003-12-01), None
patent: 2004-020776 (2004-01-01), None
patent: 2004-258382 (2004-09-01), None

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