| 摘要 |
PURPOSE:To attain always a stable fixing capacity and prevent surely fixing defects with an inexpensive constitution by providing a temperature sensor which measures the temperature of a fixing means at a prescribed time after the start of recording operation. CONSTITUTION:A fixing means 17 which fixes a developed image has a heating roll 3 incorporating a heater 2 and a roll 4 brought into contact with the heating roll 3. A sensor 5 which detects the temperature of the surface of the heating roll 3 consists of, for example, a thermistor. An electrostatic latent image corresponding to an original image is formed on a photosensitive drum 12, which is electrostatically charged by an electrifier 13, by returning between going and returning of an original platen 15 and is developed by a developing device 16, and the toner image is transferred to a recording paper supplied from a cassette 10. The recording paper where the toner image is formed on the surface is carried to the fixing means 17 and is held between a pair of rolls 3 and 4 and is fixed while carried and is ejected to an eject tray 18. |
