Fuser system and method for electophotography including...

Details Fuser system and method for electophotography including... Fuser system and method for electophotography including...

2006-02-07

2006-02-07

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Fixing

C399S330000, C399S331000

Reexamination Certificate

active

06996362

ABSTRACT:
A fusing apparatus for fixing images made from a liquid toner onto a substrate using an electrophotographic process, the apparatus including a first fusing station having first and second prefusing rollers, the second prefusing roller contacting the first prefusing roller to create a first nip area, wherein at least one of the prefusing rollers is heated to a temperature that provides a prefusing temperature within the first nip area, and a second fusing station spaced from the first fusing station and having first and second final fusing rollers, the second final fusing roller contacting the first final fusing roller to create a second nip area, wherein at least one of the final fusing rollers is heated to a temperature that provides a fusing temperature within the second nip area, wherein the fusing temperature of the second nip area is higher than the prefusing temperature of the first nip area.

REFERENCES:
patent: 4897691 (1990-01-01), Dyer et al.
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patent: 5436711 (1995-07-01), Hauser
patent: 6223016 (2001-04-01), Jia et al.
patent: 2003/0035662 (2003-02-01), Pang et al.
patent: 2004/0175208 (2004-09-01), Ichida et al.

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