Patent ID: 9091972
Filing Date: 2015-07-28
Classification: G03G

Abstract:
1. A fixing device comprising: a heat roller rotatable around a rotational axis thereof while subjected to induction heating; a fuser member disposed parallel to the heat roller; an endless belt looped for rotation around the heat roller and the fuser member; a pressure member disposed opposite the fuser member via the endless belt; a first rotation transmitter connected to the rotational axis of the heat roller to rotate around a rotational axis thereof upon rotation of the heat roller; a second rotation transmitter engaging the first rotation transmitter to rotate around a rotational axis thereof upon rotation of the first rotation transmitter; a rotation sensor disposed adjacent to the rotational axis of the second rotation transmitter to monitor rotation of the second rotation transmitter indicating concurrent rotation of the heat roller; a controller connected to the rotation sensor to limit heating of the heat roller where the rotation sensor detects that the heat roller does not rotate; a first biasing member connected to the first rotation transmitter to press the heat roller against the endless belt via the first rotation transmitter; and a second biasing member that includes an elastic body connected between the first and second rotation transmitters to press the second rotation transmitter against the first rotation transmitter.