| 摘要 |
PURPOSE:To easily set a desired numerical value by a few keys, by providing a display means for displaying a set numerical value, and input key means for executing addition, subtraction and high speed addition, respectively. CONSTITUTION:A microcomputer MC which receives outputs from input keys 31-33 for setting the number of copying sheets controls a numerical display part 38, and also repeats the copying operation in accordance with a displayed numerical value. When the key 31 is depressed, addition is executed to a numerical value displayed on the display part 38, and when the key 32 is depressed, subtraction is executed to a numerical value displayed on said part, and also when the key 33 is depressed continuously, high speed addition is executed to a displayed numerical value. When such addition key 31, subtraction key 32 and high speed addition key 33 are used properly, a desired numerical value is set easily and quickly. |
