| 摘要 |
PURPOSE:To replace a display part in case of export to easily change character patterns by constituting the display part so that it can be attached to and detached from an operation board body by a contacting part. CONSTITUTION:A display device 51 attachable to and detachable from a keyboard 41 is attached to the keyboard 41 through a connector 54 and is detained by fixing tools 56. Information is inputted and outputted between the keyboard 41 and the display device 51 by the connector 54. Since the display device 51 is attachably and detachably constituted in this manner, character patterns are easily replaced in accordance with machine types and users. For example, in case of export to a foreign country, only the display part 51 is replaced to output various messages.
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