Image forming apparatus and fixing apparatus

Details Image forming apparatus and fixing apparatus Image forming apparatus and fixing apparatus

2008-05-06

2008-05-06

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Fixing

C399S033000, C399S122000

Reexamination Certificate

active

11080833

ABSTRACT:
An image forming apparatus according to the present invention includes a heating roller2fixed at a predetermined position, a pressurizing roller3press-fitted to the heating roller2by a pressurizing mechanism4to be movable, and a hardness change detecting mechanism310which becomes electrically conductive when the pressurizing roller3moves due to thermal expansion of the heating roller2, and which detects a hardness change of the heating roller2.

REFERENCES:
patent: 5915147 (1999-06-01), Kouno et al.
patent: 6026273 (2000-02-01), Kinouchi et al.
patent: 6078781 (2000-06-01), Takagi et al.
patent: 6087641 (2000-07-01), Kinouchi et al.
patent: 6097926 (2000-08-01), Takagi et al.
patent: 6137985 (2000-10-01), Kinouchi et al.
patent: 6154629 (2000-11-01), Kinouchi et al.
patent: 6337969 (2002-01-01), Takagi et al.
patent: 6381423 (2002-04-01), Eom
patent: 6415128 (2002-07-01), Takagi et al.
patent: 6438335 (2002-08-01), Kinouchi et al.
patent: 6643476 (2003-11-01), Kinouchi et al.
patent: 6643491 (2003-11-01), Kinouchi et al.
patent: 6724999 (2004-04-01), Kikuchi et al.
patent: 6725000 (2004-04-01), Takagi et al.
patent: 6763206 (2004-07-01), Kinouchi et al.
patent: 6861627 (2005-03-01), Wasai et al.
patent: 6861630 (2005-03-01), Kinouchi et al.
patent: 6868249 (2005-03-01), Kinouchi et al.
patent: 6871041 (2005-03-01), Takagi et al.
patent: 6889018 (2005-05-01), Kinouchi et al.
patent: 6898409 (2005-05-01), Tsueda et al.
patent: 6900419 (2005-05-01), Takagi et al.
patent: 2002/0114650 (2002-08-01), May et al.
patent: 2003/0113143 (2003-06-01), Maeda et al.
patent: 2004/0175212 (2004-09-01), Tsueda et al.
patent: 2004/0238531 (2004-12-01), Kikuchi et al.
patent: 2004/0265021 (2004-12-01), Kinouchi et al.
patent: 2005/0008413 (2005-01-01), Takagi et al.
patent: 2005/0031363 (2005-02-01), Nishi
patent: 6-324596 (1994-11-01), None
patent: 2000-181263 (2000-06-01), None
U.S. Appl. No. 11/078,421, filed Mar. 14, 2005, Takagi et al.
U.S. Appl. No. 11/078,725, filed Mar. 14, 2005, Takagi et al.
U.S. Appl. No. 11/078,726, filed Mar. 14, 2005, Tsueda et al.
U.S. Appl. No. 11/082,218, filed Mar. 17, 2005, Tsueda et al.
U.S. Appl. No. 10/820,138, filed Apr. 8, 2004, Sone et al.
U.S. Appl. No. 10/805,514, filed Mar. 22, 2004, Kinouchi et al.
U.S. Appl. No. 10/805,305, filed Mar. 22, 2004, Sone et al.
U.S. Appl. No. 10/805,420, filed Mar. 22, 2004, Sone et al.
U.S. Appl. No. 10/799,770, filed Mar. 15, 2004, Kikuchi et al.
U.S. Appl. No. 10/805,507, filed Mar. 22, 2004, Kikuchi et al.
U.S. Appl. No. 10/805,522, filed Mar. 22, 2004, Kikuchi et al.
U.S. Appl. No. 10/806,392, filed Mar. 23, 2004, Takagi et al.
U.S. Appl. No. 10/805,308, filed Mar. 22, 2004, Tsueda et al.
U.S. Appl. No. 10/378,859, filed Mar. 5, 2003, Sone et al.
U.S. Appl. No. 10/945,395, filed Sep. 21, 2004, Kinouchi et al.
U.S. Appl. No. 10/944,855, filed Sep. 21, 2004, Sone et al.
U.S. Appl. No. 10/944,707, filed Sep. 21, 2004, Sone et al.

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