Fixing device and image forming apparatus

Details Fixing device and image forming apparatus Fixing device and image forming apparatus

2005-03-08

2005-03-08

Chen, Sophia S. (Department: 2852)

Electrophotography

Image formation

Fixing

C219S216000, C399S067000

Reexamination Certificate

active

06865364

ABSTRACT:
A fixing device (1) includes a fixing roller (11), a heating roller (12), an endless belt (13) stretched around the fixing roller (11) and the heating roller (12), and a pressure roller (14) facing the fixing roller (11) via the endless belt (13), and has an internal heat source. The endless belt (13) is applied the tension by means of a tension applying spring (17). The fixing roller (11) is supported by a swing lever (15) and pressed against the pressure roller (14). The swing lever (15) is pushed by a cam (18) upward, so that the fixing roller (11) shifts in the direction away from the pressure roller (14). As the fixing roller (11) shifts upward, the tension applied to the endless belt (13) decreases.

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patent: 20010003562 (2001-06-01), Hachisuka et al.
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patent: 07-036306 (1995-02-01), None
patent: 2001-194946 (2001-07-01), None
patent: 2001-249569 (2001-09-01), None

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