Abstract: An image reading device, and more particularly an image reading device having a cooler capable of preventing introduction of impurities and reducing vibration and noise. The image reading device includes a body having a reading unit, and a cooler disposed in the body cooling the reading unit. The cooler includes a housing, a cooling unit disposed in the body and moving air into the body, a filter member disposed apart from the cooling unit and removing dust contained in the air, and a damper member having one side supported by the filter member and the other side supported by the cooling unit.

Abstract: A fixing device and an image forming apparatus having the same, and a method of operating the fixing device, the fixing device being provided with a power interruption unit to prevent overheating of the fixing device by physically separating a fuse element from a power line and/or approximating a thermostat to a fixing member of the fixing device.

Abstract: An image forming apparatus capable of guiding a printing medium in a smooth manner by minimizing resistance to the printing medium feed and preventing a developer from adhering and accumulating on a printing medium guide device. The image forming apparatus includes a printing medium guide device to guide a printing medium in a print path to a discharge path or guide the printing medium in the discharge path to a reverse path, and the printing medium guide device includes rollers to rotate by contacting the printing medium.

Abstract: An image reading device, and more particularly an image reading device having a cooler capable of preventing introduction of impurities and reducing vibration and noise. The image reading device includes a body having a reading unit, and a cooler disposed in the body cooling the reading unit. The cooler includes a housing, a cooling unit disposed in the body and moving air into the body, a filter member disposed apart from the cooling unit and removing dust contained in the air, and a damper member having one side supported by the filter member and the other side supported by the cooling unit.

Abstract: A fixing device and an image forming apparatus having the same, and a method of operating the fixing device, the fixing device being provided with a power interruption unit to prevent overheating of the fixing device by physically separating a fuse element from a power line and/or approximating a thermostat to a fixing member of the fixing device.

Abstract: An image forming apparatus capable of guiding a printing medium in a smooth manner by minimizing resistance to the printing medium feed and preventing a developer from adhering and accumulating on a printing medium guide device. The image forming apparatus includes a printing medium guide device to guide a printing medium in a print path to a discharge path or guide the printing medium in the discharge path to a reverse path, and the printing medium guide device includes rollers to rotate by contacting the printing medium.