Fixing belt, fixing device and image forming apparatus

Details Fixing belt, fixing device and image forming apparatus Fixing belt, fixing device and image forming apparatus

2007-02-07

2010-12-28

Gray, David M (Department: 2852)

Electrophotography

Image formation

Fixing

Reexamination Certificate

active

07860441

ABSTRACT:
There is described a fixing device provided with a fixing belt, including a belt-shaped fixing member, which makes it possible to obtain a good image quality and an appropriate driving torque, by considering not only heights of the protrusions and depths of the depressions, but also widths of the protrusions and depressions included in an unevenness created on the inner circumferential surface of the belt-shaped fixing member. The maximum value of filtered waviness profile (W cm) of the unevenness is set at a value in a range of 0.8-10.0, while the profile bearing length (tp) of the unevenness, under 50% cutting level, is set in a range of 25%-70%. The fixing device also includes an rubbing member so that a lubricant agent is retained between the inner circumferential surface of the belt-shaped fixing member and the rubbing member.

REFERENCES:
patent: 7027763 (2006-04-01), Kato et al.
patent: 7236716 (2007-06-01), Ishino et al.
patent: 2002025759 (2002-01-01), None
Machine translation of JP 2002025759 A.

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