Fixing device and image forming apparatus

Details Fixing device and image forming apparatus Fixing device and image forming apparatus

2009-02-13

2010-12-14

Brase, Sandra L (Department: 2884)

Electrophotography

Control of electrophotography process

Control of fixing

C399S045000

Reexamination Certificate

active

07853163

ABSTRACT:
In a fixing unit, a fixing roller is rotated under driving force transmitted from a paper discharge unit-side gear of a driving section via a fixing roller driving gear, and holds and conveys a recording medium in cooperation with a pressure roller in a nip region. When a control section determines that acceleration conditions are fulfilled, the driving section increases the rotating speed of the paper discharge unit-side gear so that it is rotated at higher speed than before-acceleration speed over predetermined high-speed rotating period.

REFERENCES:
patent: 5600424 (1997-02-01), Malachowski
patent: 6411785 (2002-06-01), Ogawahara et al.
patent: 7130549 (2006-10-01), Aono et al.
patent: 7657200 (2010-02-01), Nogami
patent: 2007/0292154 (2007-12-01), Ishikuro et al.
patent: 09-286529 (1997-11-01), None
patent: 2001-290382 (2001-10-01), None
patent: 2004-157283 (2004-06-01), None

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