Fusing unit and image forming apparatus having the same

Details Fusing unit and image forming apparatus having the same Fusing unit and image forming apparatus having the same

2011-01-25

2011-01-25

Porta, David P (Department: 2884)

Electrophotography

Image formation

Fixing

C399S330000, C399S331000

Reexamination Certificate

active

07877051

ABSTRACT:
A fusing unit for an image forming apparatus, including a heating roller to apply heat to a printable medium; a first pressing roller facing the heating roller so as to press the printable medium against the heating roller; a second pressing roller disposed in front of the first pressing roller in a proceeding direction of the printable medium press the printable medium against the heating roller; and a driving unit to transmit a rotation force to the second pressing roller so that a surface linear speed of the second pressing roller is greater than a surface linear speed of the heating roller.

REFERENCES:
patent: 6975829 (2005-12-01), Aruga
patent: 7613411 (2009-11-01), Tateishi et al.
patent: 2007/0020003 (2007-01-01), Kang et al.
patent: 2007/0025783 (2007-02-01), Jang et al.
patent: 2007/0104522 (2007-05-01), Kang et al.
patent: 63-274968 (1998-11-01), None

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