PURPOSE: To facilitate the loading/unloading of a print panel, by providing a fulcrum part at an opening part of a housing of an electronic device and holes to the print panel and fitting a notched part of a long-sized tool to the fulcrum part and projected parts of the tool to the holes of the print panel respectively to turn them.

CONSTITUTION: A print panel 2 is connected to the terminal of a connector part 4 along guides 3 and 3 of a housing 1. The panel 2 is inserted manually between the guides 3 and 3 after opening a cover 5 which is freely opened and closed by means of a hinge 6. Then a notched part formed at a single side of a long-sized tool (not shown in the figure) and its lengthwise direction is fitted to a stopper 7 provided at the edge part of the cover 5. At the same time, a projection formed at the side opposite to the cut part is fitted to a hole 7-a formed to the panel 2. Then the tool is turned right or left around the stopper 7, i.e., a fulcrum to insert further the panel 2. In such a way, the print panel 2 can be loaded and unloaded in an easy and assured way.