| 摘要 |
An electrophotographic copying machine capable of suppressing the formation of phantom images with a simple structure is provided. The machine includes a pre-transfer exposure lamp for irradiating a toner image formed on an imaging surface and a post-transfer exposure lamp for irradiating the imaging surface after separation of a transfer medium, to which the toner image has been transferred, from the imaging surface. The pre-transfer exposure lamp is provided to ease the transfer of toner image to the transfer medium and the post-transfer exposure lamp is provided to remove residual charge from the imaging surface thereby preparing the imaging surface ready to be used for the next cycle of copy operation. In the present invention, a ratio of light amount of the post-transfer exposure to the light amount of the pre-transfer exposure is maintained within a predetermined range, preferably 30-60%.
|
