| 摘要 |
<p>PURPOSE:To provide a color image forming device which easily records a color image with high quality on one side and both sides of a transfer paper, which prevents the wrinkle of the transfer paper from occurring, whose structure is simple and which is inexpensive. CONSTITUTION:A fixing device which is provided with a one-side copying mode that the transfer paper is ejected a it is after a toner image on the transfer paper is fixed by a fixing belt 180 and a both-side copying mode that the toner image is fixed and the transfer paper is ejected by changing the direction of a guide piece 60 just before the transfer paper is ejected, reversely rotating paper ejection roller 19A and 19B and transferring the toner image again at a transfer position on a back surface through both-side unit 70, and further, with a heating endless belt wound round a heating roller, a peeling roller and a tension roller, with a pressure endless belt wound round a pressure roller, the peeling roller and the tension roller so as to press the pressure roller to the heating roller through the superposing part of both belts, with an air cooling device on both sides of both endless belts and with a temperature detection sensor on the heating and the pressure rollers so as to control the heat generating quantity of the heater of both rollers is provided.</p> |
