Patent ID: 9417569
Filing Date: 2016-08-16
CPC Classification: G03G

Claim Text:
1. A fuser for thermally fixing a toner image on a recording medium, the fuser comprising: an endless fusing belt configured to transfer heat to the toner image; a heat source configured to heat the fusing belt; a detection unit configured to detect peripheral inward deformation of the fusing belt; and a power cut-off unit configured to cut off power supplied to the heat source upon detection of the peripheral inward deformation of the fusing belt by the detection unit, wherein the detection unit is positioned on an inner peripheral side of the fusing belt, and wherein the detection unit has a rod-shaped member, and the rod-shaped member is disposed at a position where the rod-shaped member makes contact with part of the fusing belt deformed peripherally inward and moved peripherally inward.