Fixing apparatus

Details Fixing apparatus Fixing apparatus

2006-10-30

2010-02-23

Gray, David M (Department: 2852)

Electrophotography

Image formation

Fixing

C399S067000, C399S069000

Reexamination Certificate

active

07668494

ABSTRACT:
In an embodiment of the present invention, a pressure application mechanism portion is provided with a pressure-varying link structure arranged so as to be movable in lateral directions along an upper end portion of a device frame, a drive shaft having an eccentric cam for moving the pressure-varying link structure in the lateral directions, a shaft holding structure arranged so as to be rotatable coupled to the pressure-varying link structure, and a coil spring for applying a biasing force to the shaft holding structure in one direction along the upper end portion of the device frame, and a rotational movement is carried out to make a pressure roller approach and move away from a heat roller so as to achieve a relatively low pressure during a color processing mode and a relatively high pressure during a monochrome processing mode.

REFERENCES:
patent: 7239837 (2007-07-01), Hamada et al.
patent: 2005/0123330 (2005-06-01), Yoshimura et al.
patent: 2005/0191063 (2005-09-01), Ichikawa et al.
patent: 08-006426 (1996-01-01), None
patent: 2003-015459 (2003-01-01), None
patent: 2003-091124 (2003-03-01), None
patent: 2004-004234 (2004-01-01), None
patent: 2004-145165 (2004-05-01), None

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