Electrophotography – Diagnostics – Fixing
Patent
1996-06-20
1998-07-07
Ramirez, Nestor
Electrophotography
Diagnostics
Fixing
399330, 399331, G03G 1520
Patent
active
057782784
ABSTRACT:
A device for preventing a fixing unit from overheating in an electrophotographic system includes a heating lamp positioned within an interior portion of the heat roller for generating heat to increase a temperature exhibited by the heat roller. A frame supports a bearing of the heat roller. A thermal sensor is formed on one side of the frame and contacts a surface of the heat roller to control the temperature exhibited by the heat roller. A thermal fuse interrupts electrical power to the heating lamp upon detecting that the temperature exhibited by the heat roller exceeds a predetermined level. A pressure roller applies a force upon the heat roller so that the heat roller is displaced in a direction towards the thermal fuse as a recording sheet passes between the heat roller and the pressure roller.
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Bushnell Esq. Robert E.
Ramirez Nestor
Samsung Electronics Co,. Ltd.
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