Electrophotography – Image formation – Fixing
Reexamination Certificate
2005-02-15
2005-02-15
Grainger, Quana (Department: 2852)
Electrophotography
Image formation
Fixing
Reexamination Certificate
active
06856783
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 heat roller is R[Ω], B is set to be larger than L/R×0.3 and less than D/3.
REFERENCES:
patent: 20020030050 (2002-03-01), Takagi et al.
patent: 9-258586 (1997-10-01), None
patent: 10-74005 (1998-03-01), None
Foley & Lardner LLP
Grainger Quana
Kabushiki Kaisha Toshiba
Toshiba Tec Kabushiki Kaisha
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