Image forming apparatus to detect a power malfunction and...

Details Image forming apparatus to detect a power malfunction and... Image forming apparatus to detect a power malfunction and...

2007-08-23

2010-12-28

Grainger, Quana M (Department: 2852)

Electrophotography

Machine operation

Having power supply

Reexamination Certificate

active

07860426

ABSTRACT:
An image forming apparatus includes a heat radiation unit to emit heat by an operating power supplied to the heat radiation unit, a switching unit to supply the heat radiation unit with the operating power, a relay unit to control the operating power to be supplied to the switching unit, a malfunction detector to detect whether the operating power is being supplied to the heat radiation unit and to output a malfunction signal corresponding to the switching unit or the relay unit if the power is not supplied thereby denoting a malfunction, and a controller to output an off-signal to at least one of the switching unit and the relay unit if the malfunction signal is received from the malfunction detector.

REFERENCES:
patent: 6573482 (2003-06-01), Mokuo
patent: 7266314 (2007-09-01), Takami
patent: 7284365 (2007-10-01), Abe
patent: 2005/0047810 (2005-03-01), Nagatsuma et al.
patent: 09197892 (1997-07-01), None
patent: 11-109785 (1999-04-01), None
patent: 2000-137394 (2000-05-01), None
patent: 2004-138639 (2004-05-01), None
patent: 1997-50138 (1997-08-01), None

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