Fixation apparatus and image forming apparatus

Details Fixation apparatus and image forming apparatus Fixation apparatus and image forming apparatus

1997-07-03

1999-09-28

Brase, Sandra

Electrophotography

Image formation

Fixing

G03G 1520

Patent

active

059602430

ABSTRACT:
An apparatus is provided to easily prevent walking of a belt while avoiding twisting, warping and buckling of the belt including using an inexpensive endless belt with low rigidity in a fixation apparatus of so-called belt nip method. The apparatus includes a heating roll, an endless belt that presses against the heating roll and rotates along with the heating roll, and a pressing member that presses the endless belt against the heating roll 1 and forms a contact nip region between the endless belt and the heating roll. A belt walk guide that limits walking of the edge of the endless belt is provided on at least one side of the contact nip region between the between the heating roll and the endless belt. The belt walk guide is positioned on an axis parallel to an axis of the heating roll and passing through the contact nip region. The apparatus also includes a pressure roll and the endless belt.

REFERENCES:
patent: 5119143 (1992-06-01), Shimura
patent: 5148226 (1992-09-01), Setoriyama et al.
patent: 5235395 (1993-08-01), Ishiwata
patent: 5257078 (1993-10-01), Kuroda
patent: 5621512 (1997-04-01), Uehara et al.
patent: 5666624 (1997-09-01), Kanesawa et al.

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