Hewlett-packard Development Company, L.p.

Hojin Ryu

Sunhyung Lee

Sungwoo Kang

Jaehyeok Jang

An example fuser includes a flexible fusing belt, a backup member located outside the fusing belt to form a fusing nip with the fusing belt, a heater substrate having a first surface including a heating element pattern and a second surface, opposite to the first surface, to heat the fusing belt in the fusing nip, and a heat conduction member in contact with the first surface of the heater substrate to distribute the heat of the heater substrate. The heating element pattern includes a first heating element having a first length greater than a width of a first print medium, and a second heating element having a second length greater than a width of a second print medium and greater than the first length.

Heat conduction member for preventing fuser heater from local overheating

An example fuser includes a flexible fixing belt, a backup member to form a fixing nip with the fixing belt, a heater substrate for heating the fixing belt at the fixing nip and having a first surface comprising a heating element pattern, a common terminal and a driving power supply terminal for supplying power to the heating element pattern, and a second surface in contact with the fixing belt, and a temperature sensor sheet comprising a temperature sensor, a sensing terminal and an electric wire connecting the temperature sensor to the sensing terminal, wherein the temperature sensor sheet is in contact with the first surface of the heater substrate such that the sensing terminal and the electrical wire do not overlap the common terminal and the driving power supply terminal.

Temperature sensor placement for heater substrate in fuser

An example fuser includes a flexible fixing belt, a back-up to form a fixing nip with the fixing belt, a heater substrate having a first surface on which a heating element pattern is located and a second surface opposite to the first surface, the heater substrate to heat the fixing belt at the fixing nip, and a heat conduction member having a plurality of heat conduction segments contacting the first surface of the heater substrate.

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Seongnam-si, South Korea

Hojin Ryu