Fixing unit image forming apparatus with interior...

Electrophotography – Image formation – Fixing

Reexamination Certificate

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Reexamination Certificate

active

11219806

ABSTRACT:
A fixing unit that fixes a toner image carried on a recording medium includes a rotation member, and a pressure belt module that is provided with a pressure belt, a pressure roller supporting the pressure belt and pressing the rotation member, and a belt-supporting roller supporting the pressure belt. The pressure roller includes a first roller that is formed into a cylindrical shape, and a second roller that is disposed inside the first roller and formed into a crown shape, in which an axially central portion thereof is larger in outer diameter than both end portions thereof.

REFERENCES:
patent: 4963084 (1990-10-01), Froeschke
patent: 58062679 (1983-04-01), None
patent: 61185777 (1986-08-01), None
patent: 06208312 (1994-07-01), None
patent: 08278709 (1996-10-01), None
patent: 11038811 (1999-02-01), None
patent: 3084692 (2000-07-01), None
patent: 2004109454 (2004-04-01), None
patent: 2005309188 (2005-11-01), None

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