System for regulating the sliding force of a fusing belt in...

Details System for regulating the sliding force of a fusing belt in... System for regulating the sliding force of a fusing belt in...

2005-06-28

2005-06-28

Beatty, Robert (Department: 2852)

Electrophotography

Image formation

Fixing

C198S840000, C474S122000

Reexamination Certificate

active

06912371

ABSTRACT:
An image forming apparatus includes a roller having a central portion and an outer edge portion, a fusing belt positioned over at least a portion of the central portion of the roller, and a belt regulating part, positioned on the outer edge portion of the roller, that impedes the fusing belt from moving onto the outer edge portion of the roller. The belt regulating part includes a first portion having a surface adjacent to the central portion of the roller and an edge of the fusing belt. The first portion is configured to contact the fusing belt if the fusing belt moves toward the outer edge portion of the roller. The belt regulating part also includes a second portion coupled to the first portion, the second portion having an interior surface that contacts with the outer edge portion of the roller during operation of the image forming apparatus to cause the regulating part to rotate in conjunction with the rotation of the roller and the fusing belt.

REFERENCES:
patent: 4221480 (1980-09-01), Spehrley, Jr.
patent: 4286706 (1981-09-01), Castelli et al.
patent: 5070365 (1991-12-01), Agarwal
patent: 5257078 (1993-10-01), Kuroda
patent: 5740511 (1998-04-01), Todome
patent: 5960243 (1999-09-01), Daigo et al.
patent: 6002908 (1999-12-01), Hayashi et al.

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