Patent ID: 8929801
Filing Date: 2015-01-06
Classification: G03G

Abstract:
1. An image forming device comprising: a main frame providing an internal space and formed with a sheet discharge opening; a fixing unit provided in the internal space and comprising a heat member, and a pressure member providing a nip portion in cooperation with the heat member; and a sheet discharge guide provided with a U-shaped part having one side and another side, the one side being a depressed guide surface configured to contact and guide a sheet to make a U-turn from the fixing unit toward the sheet discharge opening, the sheet discharge guide being displaceable toward and away from the nip portion between a non-displaced state and a displaced state, the depressed guide surface being configured to contact and guide the sheet toward the sheet discharge opening in the non-displaced state and the displaced state, wherein the sheet discharge guide comprises a first guide fixed to the main frame and a second guide movable relative to the first guide between a first position and a second position, wherein, when the second guide is positioned in the first position, the second guide is positioned closer to the nip portion than the first guide, and, when the second guide is positioned in the second position, the second guide is positioned farther from the nip portion than the first guide, wherein the sheet discharge opening is positioned higher than the fixing unit, wherein the first guide has an arcuate shape and includes a first portion with a first radius of curvature, and wherein the second guide has an arcuate shape and includes a second portion with a second radius of curvature different from the first radius of curvature.