Fixing apparatus having fixing roller and induction heating...

Details Fixing apparatus having fixing roller and induction heating... Fixing apparatus having fixing roller and induction heating...

2006-08-01

2006-08-01

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Fixing

Reexamination Certificate

active

07085527

ABSTRACT:
The fixing apparatus includes an induction heating device provided inside the fixing roller, configured to heat the fixing roller by induction heating, and the induction heating device further includes a core member and an excitation coil wound around the core member, and where the inner diameter of the heat roller is represented by D, the width of the portion of the core member, which opposes at least the heat roller is represented by B, the inductance of the excitation coil is L[μH] and the resistance of the excitation coil is R[Ω], B is set to be larger than L/R×0.3 and less than D/3.

REFERENCES:
patent: 5526103 (1996-06-01), Kato et al.
patent: 5768673 (1998-06-01), Morigami
patent: 6495810 (2002-12-01), Takagi et al.
patent: 9-258586 (1997-10-01), None
patent: 10-74005 (1998-03-01), None

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