Electric heating – Heating devices – Combined with diverse-type art device
Patent
1999-01-21
2000-06-06
Pelham, Joseph
Electric heating
Heating devices
Combined with diverse-type art device
399333, G03G 1520
Patent
active
060721553
ABSTRACT:
A fixing apparatus comprises a fixing heating roller for heating a recording medium deposited with a recording material, and a pressing roller for transporting the recording medium while interposing it between the fixing heating roller and the pressing roller. The heating roller includes a hollow main roller body, and a sheet-shaped insulative film provided over an inner circumferential surface of the main roller body. A pattern of a resistance heat-generating element and an electrode pattern connected to the pattern of the resistance heat-generating element are formed on the insulative film. A margin is provided between the electrode pattern and at least one of edges of the insulative film in the circumferential direction, and the margin has a size which is not less than a distance that conforms to the UL1950 standard with respect to a voltage supplied to the resistance heat-generating element. Thus, the insulation performance between the electrode pattern and the main roller body is ensured.
REFERENCES:
patent: 5575942 (1996-11-01), Watanabe
patent: 5729814 (1998-03-01), Suzuki et al.
patent: 5826152 (1998-10-01), Suzuki et al.
CAN/CSA C22.2 No. 950-95), UL1950, 1995-1998.
Brother Kogyo Kabushiki Kaisha
Pelham Joseph
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