Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1998-09-30
2000-07-25
Walberg, Teresa
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219485, 219486, 307 29, H05B 102
Patent
active
060939168
ABSTRACT:
The present invention relates to driving of a heater of a fixing unit in an image process apparatus. In case of driving first and second heaters by using a constant voltage output control circuit, when the first or second heater is switched from an ON state to an OFF state, an operation of the constant voltage output control circuit is stopped, thereby preventing destruction of circuit elements. Also, when the first heater is in the ON state and the second heater is switched from the OFF state to the ON state, the operation of the constant voltage output control circuit is stopped.
REFERENCES:
patent: 3961236 (1976-06-01), Rodek et al.
patent: 4564748 (1986-01-01), Gupton
patent: 4617453 (1986-10-01), Kumon
patent: 4638147 (1987-01-01), Dytch et al.
patent: 4798927 (1989-01-01), Kaminaka
patent: 4912300 (1990-03-01), Hennuy et al.
patent: 5670832 (1997-09-01), Takeda
patent: 5756969 (1998-05-01), Machino et al.
patent: 5760494 (1998-06-01), Takeda
patent: 5802421 (1998-09-01), Miura
patent: 5875373 (1999-02-01), Sato et al.
patent: 5920366 (1999-07-01), Dehmlow et al.
Canon Kabushiki Kaisha
Pwu Jeffrey
Walberg Teresa
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