Samsung Electronics Co., Ltd.

Min-Goo Choi

Sung-Hoon Hong

Kyung-shig Chung

A method and apparatus for fuser cooling fan control is provided. An image forming apparatus so configured comprises a fixing unit, a cooling fan for cooling the fixing unit, a detecting sensor for measuring ambient temperature and humidity of the image forming apparatus, and a controller for recognizing ambient temperature and humidity change from the measurement provided by the detecting sensor. The controller controls operation of the cooling fan according to the temperature and humidity change detected. The controller delays operation of the cooling fan by an amount of time if the ambient temperature and/or humidity is below a reference temperature and humidity level.

Fuser cooling fan control method and image forming apparatus having the same

A fusing unit and a fusing apparatus using the fusing unit are provided. The fusing unit includes a pipe-shaped fusing roller having a heat generating unit and electrode members at both ends thereof. A power supply unit contacts the electrode members and supplies current thereto. A blocking member is disposed between the electrode members and the power supply units to block current by separating the power supply unit from the electrode members when a temperature of the heat generating unit rapidly increases.

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Gunpo-si, South Korea

Min-Goo Choi