| 摘要 |
PURPOSE:To provide an image forming device which can prevent important information from being erased erroneously when the image is recorded with an image forming agent such as disappearing toner or ink which disappears with the lapse of time. CONSTITUTION:A toner replenishment unit 43a corresponding to the main developing unit 42a is filled with black toner. A toner replenishment unit 43b corresponding to the sub-developing unit 42b is filled with the disappearing toner which disappears with the lapse of time. When the mode which develops the electrostatic latent image of an original image with the disappering toner is selected and the mode which adds the message informing of that onto a recording sheet is selected, the message is added with the black toner or the disappearing toner. |
