Image heating apparatus with heating nip for preventing...

Details Image heating apparatus with heating nip for preventing... Image heating apparatus with heating nip for preventing...

2007-08-21

2007-08-21

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Fixing

Reexamination Certificate

active

11244082

ABSTRACT:
A belt nip type fixing apparatus, which prevents a formation of an icicle-like uneven glossiness occurring on a surface of a fixed image due to pressure release in a fixing nip. In addition, an image forming apparatus provided with the fixing apparatus for preventing an occurrence of image failure even in a case where a coated paper sheet, which is most likely to cause the image failure, is used as a recording material and for enlarging a scope of application of the recording material while maintaining a productivity, to thereby attain an improved merchantability. The apparatus is configured such that a wedge-shaped space, which is formed between a belt, a separation roller, and a pressure pad, is adequately filled by a sliding sheet, thereby preventing a pressure in the fixing nip from being decreased.

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patent: 2003/0183610 (2003-10-01), Okabayashi et al.
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