| 摘要 |
PURPOSE: To provide a double-sided image forming device which is not affected by offset preventing solution with which a fixing roller is coated. CONSTITUTION: An image forming order is controlled so that the image of an original whose toner consumption is small is formed on the first surface of a transfer material in advance and the image of the original whose toner consumption is large is formed on the second surface of the transfer material afterward based on an image signal obtained by scanning the first and the second surfaces of the original. Besides, a coating roller 65a is controlled so that the fixing roller 61 is not coated with an offset preventing solution releasing agent when the image whose toner consumption is small is formed on the first surface of the transfer material and it is coated with the releasing agent when the image whose toner consumption is large is formed on the second surface of the transfer material. |
