IMAGE HEATING APPARATUS

摘要

An image heating apparatus for heating a toner image formed on a recording material, the image heating apparatus includes a heater including a substrate and a heat generating resistor thereon for generating heat for heating the toner image, by electric power supply; an electric power shut-off member operable in response to an abnormality temperature rise of the heater to shut off the electric power supply; and a heat conduction member having a thermal conductivity, in a direction of a thickness of the substrate, higher than that of the substrate, wherein a contact area between the heat conduction member and the substrate is larger than a contact area between the heat conduction member and the electric power shut-off member.

主权项

1. An image heating apparatus for heating a toner image formed on a recording material, said image heating apparatus comprising:
a heater including a substrate and a heat generating resistor thereon for generating heat for heating the toner image, by electric power supply; an electric power shut-off member operable in response to an abnormality temperature rise of said heater to shut off the electric power supply; and a heat conduction member having a thermal conductivity, in a direction of a thickness of said substrate, higher than that of said substrate, wherein a contact area between said heat conduction member and said substrate is larger than a contact area between said heat conduction member and said electric power shut-off member.