| 摘要 |
PROBLEM TO BE SOLVED: To heat and dry an image carrier without needing a heating means used in a later process and, therefore, to maintain satisfactory image quality by providing a means for selectively leading the heat of spaces near a fixing device into the image carrier or halting it. SOLUTION: A toner image is formed and held on a transfer material advancing from the right to left and in the position of the image carrier 1, the toner image is fixed to the transfer material under heat and pressure in a fixing part including a fixing roller 17, and the transfer material is ejected out of the machine. In the fixing part, the fixing roller 17 is heated to a specific temperature by the action of a heater 18, and accompanying it the heating of air near the roller occurs. Therefore, by actuating a fan 20, the heated air is passed, via a connection pipe 19-a, through a hollow pipe 13 in the image carrier 1 and a connection pipe 19-b, and brought back to the space near the fixing roller. By the passage of the heated air through the hollow pipe 13 the pipe is heated, and, further, via fins 21 provided on it the temperature of the image carrier is increased. |
