Heating member and fusing device including the same

摘要

A heating member includes: a resistive heating layer including: a medium-passing area, and non-medium-passing areas respectively on opposing sides of the medium-passing area at opposing side portions of the resistive heating layer; a core which supports the resistive heating layer; a thermally conductive layer between the resistive heating layer and the core, and disposed in a non-medium passing area at a side portion of the resistive heating layer; and an electrode which is between the resistive heating layer and the core, contacts the side portion of the resistive heating layer and supplies current to the resistive heating layer. A ratio of a contact area between the thermally conductive layer and the resistive heating layer to an area of the non-medium-passing area in which the thermally conductive layer is disposed, ranges from about 5% to about 25%.

主权项

1. A heating member comprising:
a resistive heating layer comprising: a medium-passing area, and non-medium-passing areas respectively on opposing sides of the medium-passing area at opposing side portions of the resistive heating layer; a core which supports the resistive heating layer; a thermally conductive layer between the resistive heating layer and the core, and disposed in a non-medium passing area at a side portion of the resistive heating layer; and an electrode which is between the resistive heating layer and the core, contacts the side portion of the resistive heating layer and supplies current to the resistive heating layer, wherein a ratio of a contact area between the thermally conductive layer and the resistive heating layer to an area of the non-medium-passing area in which the thermally conductive layer is disposed, ranges from about 5% to about 25%.