Patent ID: 9280104
Filing Date: 2016-03-08
CPC Classification: G03G

Claim Text:
1. A fixing device for fixing a developer image on a recording medium conveyed in a prescribed direction, the fixing device comprising: a first belt in an endless form; a first heat source for heating the first belt; a first roller disposed at an inner peripheral surface of the first belt; a second roller disposed at the inner peripheral surface of the first belt and at an upstream region of the first roller in the prescribed direction; a first reflection member, disposed between the first roller and the first heat source, the first reflection member reflecting heat from the first heat source toward the first belt; a second reflection member disposed between the second roller and the first heat source at the upstream region of the first reflection member in the prescribed direction, the second reflection member reflecting heat from the first heat source toward the first belt; a first temperature detecting member for detecting temperature of the first reflection member by contacting the first reflection member; a pressure unit for contacting with pressure to the first roller and the second roller through the first belt, wherein the pressure unit forms a nipping portion with the first roller, the second roller, and the first belt, wherein the first reflection member includes: a first reflection surface, reflecting heat toward an upstream region in the prescribed direction; a second reflection surface, extending linearly toward the nipping portion from one end of the first reflection surface; and a third reflection surface, extending substantially parallel to the second reflection surface from the other end of the first reflection surface, wherein the second reflection member includes: a fourth reflection surface, reflecting heat toward a downstream region in the prescribed direction; and a fifth reflection surface, extending linearly toward the nipping portion from one end of the fourth reflection surface, wherein the second reflection surface and the fifth reflection surface form a route parallel thereto, extending toward the nipping portion for transmitting heat to the nipping portion, and wherein the first temperature detecting member contacts a rear surface of the third reflection surface.