Patent ID: 9323186
Filing Date: 2016-04-26
CPC Classification: G03G

Claim Text:
1. An image forming apparatus for forming an image on a recording material, comprising: an image forming portion configured to form the image on the recording material; a fixing portion, including a cylindrical rotatable member having a heat generating layer, configured to fix the image on the recording material by heat of said rotatable member; and a temperature detecting portion configured to detect the temperature of said rotatable member, said temperature detecting portion including a plurality of temperature detection sensors arranged at both longitudinal end portions of said rotatable member, wherein said temperature detecting portion monitors a temperature change amount per one rotation of said rotatable member, wherein said rotatable member is heated by the heat generating layer generating heat by a flow of a current in the heat generating layer, and wherein depending on the temperature change amount, a notification of an abnormality of said image forming apparatus is provided.