| 摘要 |
PROBLEM TO BE SOLVED: To reduce a cost by detachably mounting a remote controller at a blackboard body, using the controller also as an operation panel of the body, thereby reducing the number of components as compared with the case of providing the controller separately from the panel equipped with the body. SOLUTION: A blackboard body 10 has a base frame 12 formed entirely in a square long lateral flat state and formed in a rectangular frame state at its rear side to support the entirety by the frame. A window frame 13 largely opened at a front surface window 13a is mounted at a front side of the frame 12. A printer 16 is provided at a lower part of the frame 12. A slender pen placing tray 14 is provided along a lower edge of the frame 13, and an operation unit 1 having a power switch and a copy switch is provided at one side edge. At the time of operating the body 10 near at hand, a remote controller is used as the panel as contained in a remote controller container 30 as it is. At the time of explaining separately, the controller is removed from the container 30, and remotely controlled.
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