To draw operational information on paper by providing a control means for reading a drawing means and an operational information data on the basis of a common storage means and an operational information data and supplying them to a display means and the drawing means.

A common storage unit 11 stores graphic operational information data Ds1. An operational information display unit 7 reads graphic operational information data Ds1 and displays the operational information to a LCD on the basis of the graphic operational information data Ds1. A copying storing unit 12 stores the graphic operational information data Ds1 to be stored in the common storage unit 11 by control of a display control unit 10. A graphic control unit 13 for controlling a printer 14 and an XY plotter 15 converts the graphic operational information Ds1 into the graphic data Ds2. The printer 14 and the XY plotter 15 draw the operational information on paper by control of the graphic control unit 13. A selector 16 selects a device of the printer 14 or the XY plotter 15.