Fixing device for fixing an unfixed toner image formed on a...

Details Fixing device for fixing an unfixed toner image formed on a... Fixing device for fixing an unfixed toner image formed on a...

2006-04-04

2006-04-04

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Fixing

Reexamination Certificate

active

07024145

ABSTRACT:
A fixing device for fixing an unfixed toner image formed on a sheet-shaped recording medium is disclosed. A first roller incorporates a heat source therein. A second roller is pressed toward the first roller. A part of an endless belt is wound on an outer periphery of the second roller to be circulated. A non-rotatable belt stretcher stretches the endless belt together with the second roller such that the circulated endless belt is slid on a first face extending in a widthwise direction of the endless belt, and such that a tensile force is applied to both widthwise end portions of the endless belt. The circulated endless belt is nipped between the first roller and the second roller to form a first nip portion through which the unfixed toner image is fixed on the recording medium with heat from the heat source. The first face is curved in the widthwise direction.

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