| 摘要 |
<p>PURPOSE:To obtain the document preparation device which prevents document and image data, etc., from being printed out unnecessarily and is superior in the portability of information. CONSTITUTION:A display device 50 is provided in freely attachably and detachably on a main body 10. When the display device 50 is mounted on the main body 10, the display device 50 is supplied with necessary electric power from the main power source part of the main body 10 and driven. When the display device 50 is detached from the-main body 10, the display device 50 is supplied with electric power from an internal subordinate power source part 56 and driven.</p> |
