Image forming apparatus and control method therefor

Details Image forming apparatus and control method therefor Image forming apparatus and control method therefor

2011-07-19

2011-07-19

Ngo, Hoang (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C399S045000, C399S334000

Reexamination Certificate

active

07983582

ABSTRACT:
An image forming apparatus includes an image carrier, a developing unit, a transfer unit, and a fixer to fix an image formed on a sheet and includes a rotary heat generator including a heat generation layer, a pressure member to form a nip with the rotary heat generator to sandwich the sheet therebetween, an excitation coil disposed facing the rotary heat generator, to inductively heat the heat generation layer, a demagnetization coil disposed facing the heat generation layer, to generate magnetic flux that partly counteracts magnetic flux generated by the excitation coil and a fixer controller to control activation of the excitation coil as well as the demagnetization coil before a second image formation job after completion of a first image formation job in which an image is formed on a sheet of recording media whose width is smaller than a maximum sheet width usable in the fixer.

REFERENCES:
patent: 6246843 (2001-06-01), Nanataki et al.
patent: 2005/0067408 (2005-03-01), Fujii et al.
patent: 2009/0148205 (2009-06-01), Seo et al.
patent: 2009/0245897 (2009-10-01), Seo et al.
patent: 1 253 483 (2002-10-01), None
patent: 1 582 939 (2005-10-01), None
patent: 2002-023557 (2002-01-01), None
patent: 2005-321642 (2005-11-01), None
patent: 2007-226126 (2007-09-01), None
patent: 2008-040176 (2008-02-01), None
European Search Report dated Nov. 24, 2009 issued in corresponding European Application No. 09161335.6.

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