Heating roller, heating device and image forming apparatus

Details Heating roller, heating device and image forming apparatus Heating roller, heating device and image forming apparatus

2008-01-08

2008-01-08

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Fixing

C399S328000

Reexamination Certificate

active

07317893

ABSTRACT:
A heating roller is constituted by an elastic roller AA in which an elastic thermal insulation layer is formed, and an endless cylindrical member BB in which a releasing layer is formed on a thin-film base material (heat generating layer), wherein the elastic roller AA and the cylindrical member BB are constituted such that they are separable, and wherein a slight gap is formed between the elastic roller AA and the cylindrical member BB. Then, when a fixing device is started up and the heating roller is rotated, a deflection B1 of the cylindrical member BB caused by the inner diameter difference between the cylindrical member BB and the elastic roller AA is generated on the paper entry side.

REFERENCES:
patent: 6898409 (2005-05-01), Tsueda et al.
patent: 7006781 (2006-02-01), Imai et al.
patent: 2004/0173603 (2004-09-01), Kinouchi et al.
patent: 06-075493 (1994-03-01), None
patent: 08-129313 (1996-05-01), None

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