| 摘要 |
PURPOSE:To make it possible to change the position of a key having high using frequency in accordance with the using frequency and to suppress the generation of a key failure by successively changing the display position of a display pattern in each arrival of a count result by a counting means at prescribed frequency. CONSTITUTION:When a copy key is depressed after setting up a copy mode, a panel CPU 56 counts up a copy key count value stored in an EEPROM and outputs the key input to a main CPU 50. The CPU 56 compares a location changing normal value stored in the EEPROM with an updated copy key count value. When the copy key count value reaches the normal value as the result of comparison, the CPU 56 judges a change in the location of the copy key, the current position of the copy key by a display pattern displayed on a liquid crystal display part 43 formed as a RAM and the location to change the position of the display pattern of the copy key in the RAM. |
