Fixing unit

Details Fixing unit Fixing unit

2005-06-28

2005-06-28

Tran, Hoan (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C219S216000

Reexamination Certificate

active

06912367

ABSTRACT:
A fixing unit includes an inductor which heats a heating roller by electromagnetic induction, the heating roller serving as a heat source which fixes toner supplied to a paper sheet, and a heat control circuit which supplies radio-frequency power to the inductor. Particularly, the heat control circuit is set such that the radio-frequency power is changed in a stepwise manner to increase and reduce the temperature of the heating roller.

REFERENCES:
patent: 6630651 (2003-10-01), Ohishi et al.
patent: 58-90676 (1983-05-01), None
patent: 8-76620 (1996-03-01), None
patent: 9-120222 (1997-05-01), None
patent: 9-258586 (1997-10-01), None
patent: 2003-91186 (2003-03-01), None

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