| 摘要 |
PURPOSE:To eliminate the waste of a copy and time required for copying work. CONSTITUTION:A paper supply part supplying a paper, an image forming part forming an image on the paper supplied from the paper supply part and ejecting the paper, a density detection means 51 detecting the density of the surface of the paper in the midst of carrying before the paper supplied from the paper supply part arrives at the image forming part, a judgement means 52 judging whether the image exists on the surface of the paper or not based on a density detection signal from the detection means 51 and a display means 42 displaying that the image exists on the paper when the image is judged to exist on the surface of the paper by the judgement means 52 are provided. |
