| 摘要 |
PURPOSE:To improve the operability by operating and displaying the sufficient contents corresponding to an operating key. CONSTITUTION:At the peripheral part of a displaying part 30f composed of a liquid crystal dot matrix, plural operating keys 30g-30m and an explaining key 30n are provided. When the operating keys 30g-30m are operated and further, the explaining key 30n is operated, the displaying information corresponding to the operating key is read, the detailed operating explanation of the operating key is displayed at the displaying part 30f and the therefore, the operability of an image forming device is improved. |
