DISPLAY SWITCH DEVICE AND MEMORY CONTENT DISPLAY METHOD

摘要

PROBLEM TO BE SOLVED: To monitor the state of a memory and to switch display with a simple operation without totally affecting an operation even if a device executes any operation without using an outer circuit and device. SOLUTION: A display means 201 displaying data, an operation key 202, a control means 204 controlling the display means 201 and monitoring information inputted from the operation key 202 and a memory 211 storing data by dividing it into plural modes are installed. The control means 204 displays data stored in the memory 211 by the individual modes on the display means 201 when the prescribed operation key 202 is depressed for a prescribed number of times in a prescribed depression time.