Patent ID: 9454115
Filing Date: 2016-09-27
CPC Classification: G03G

Claim Text:
1. A fixing device comprising: a fixing belt arranged rotatably around a rotation axis; a pressuring member arranged rotatably and configured to come into pressure contact with the fixing belt so as to form a fixing nip; a pressing member configured to press the fixing belt to the pressuring member side; a supporting member configured to support the pressing member; a heat source arranged at an inner circumferential side of the fixing belt and configured to radiate a radiant heat; and a reflecting member configured to reflect the radiant heat radiated from the heat source to an inner circumferential face of the fixing belt; wherein the fixing belt has: a passing region through which a recording medium passes; and a non-passing region arranged outside the passing region in a direction of the rotation axis, wherein the reflecting member includes: a first plate part arranged at an upstream side of the supporting member in a conveying direction of the recording medium; a second plate part arranged at a downstream side of the supporting member in the conveying direction of the recording medium; and a third plate part configured to connect an end part at a far side from the fixing nip of the first plate part and an end part at the far side from the fixing nip of the second plate part, wherein a part of the pressing member is inserted into a space formed between the first plate part and the second plate part, wherein the third plate part has: a first reflecting part arranged at an inner circumferential side of the passing region; and a second reflecting part arranged outside the first reflecting part in the direction of the rotation axis and arranged at an inner circumferential side of the non-passing region, roughness of a face at the heat source side of the second reflecting part is larger than roughness of a face at the heat source side of the first reflecting part.