Patent ID: 8977175
Filing Date: 2015-03-10
Classification: G03G

Abstract:
1. A fixing apparatus that includes two rotating members making press-contact with each other and an oil roller making press-contact with either of the rotating members, and that fixes toner on a recording sheet by passing the recording sheet through a nip area between the rotating members, the fixing apparatus comprising: a gear power transmission portion that transmits a rotation of a shaft of the rotating member that makes press-contact with the oil roller to a shaft of the oil roller; and a one-way clutch that causes the oil roller to idly rotate in a direction of a driven rotation when the oil roller is driven to rotate by making press-contact with the rotating member, wherein the gear power transmission portion has an oil roller gear provided on the shaft of the oil roller and a front stage gear that is located upstream of the oil roller gear and that meshes with the oil roller gear, wherein the oil roller and the oil roller gear are individually supported so as to be contacted with and separated from the rotating member and the front stage gear, wherein a first spring and a second spring are provided, the first spring biasing the oil roller in a direction close to the rotating member, and the second spring biasing the oil roller gear in a direction close to the front stage gear, and wherein the biasing force by the first spring is less than the biasing force by the second spring.