Fuser assembly including a nip release bias spring

Details Fuser assembly including a nip release bias spring Fuser assembly including a nip release bias spring

2011-08-30

2011-08-30

Brase, Sandra L (Department: 2884)

Electrophotography

Having particular structure

Modular or displaceable

C399S328000, C399S329000

Reexamination Certificate

active

08010017

ABSTRACT:
A fuser assembly includes first and second fuser structures, drive apparatus and nip engagement and release apparatus. The nip engagement and release apparatus includes nip-loading structure, a bias spring for engaging the nip-loading structure, a nip release cam for engaging the bias spring, a swing arm assembly and nip release structure. The nip engagement and release apparatus is adapted to cause a fuser nip to release during a reverse operation except when performing a duplex operation.

REFERENCES:
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patent: 6253046 (2001-06-01), Horrall et al.
patent: 6681090 (2004-01-01), Cornelius
patent: 6681094 (2004-01-01), Horrall et al.
patent: 7003246 (2006-02-01), Gogate et al.
patent: 2005/0063743 (2005-03-01), Cho et al.
patent: 2006/0096084 (2006-05-01), Hamilton et al.
U.S. Appl. No. 11/668,635, filed Jan. 30, 2007, Embry et al.
U.S. Appl. No. 11/669,206, filed Jan. 31, 2007, Embry et al.

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