PROBLEM TO BE SOLVED: To raise an efficiency of discussion or the like by using an electronic blackboard by printing a document, a graphic form or the like previously prepared on a so-called electronic blackboard. ;SOLUTION: A scanner 26 is provided at one end of a blackboard, and a print head 30 is provided at the other. A document sent from an exterior or a disc document previously input by the scanner is printed on a writing surface 22. This print is executed preferably by using an ink to be simply erased by an eraser for a conventional whiteboard.;COPYRIGHT: (C)2000,JPO
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