Fixing apparatus and image forming apparatus provided therewith

Details Fixing apparatus and image forming apparatus provided therewith Fixing apparatus and image forming apparatus provided therewith

2007-03-13

2009-10-13

Tran, Hoan H (Department: 2852)

Electrophotography

Image formation

Fixing

C399S329000

Reexamination Certificate

active

07603069

ABSTRACT:
In a fixing apparatus and an image forming apparatus of the present invention, an external heating section is provided that includes: an external heating belt; two heat rollers suspending the external heating belt and pressed against a fixing roller via the external heating belt; and a release/contact mechanism for causing the two heat rollers to separate from or contact with the fixing roller. With the heat rollers separated from the fixing roller by the release/contact mechanism, the external heating belt and the fixing roller are in contact with each other and the external heating belt follows rotation of the fixing roller. As a result, a fixing apparatus is provided that includes an external release/contact mechanism that can quickly operate in a small space and at low power without encouraging deterioration of the belt member. An image forming apparatus provided with such a fixing apparatus is also provided.

REFERENCES:
patent: 7010255 (2006-03-01), Yura et al.
patent: 7107001 (2006-09-01), Kameda
patent: 7187894 (2007-03-01), Fuma
patent: 7194233 (2007-03-01), Wu et al.
patent: 2005/0117942 (2005-06-01), Ishii et al.
patent: 2004-198659 (2004-07-01), None
patent: 2005-164691 (2005-06-01), None
patent: 2005-189427 (2005-07-01), None

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