| 摘要 |
PURPOSE:To provide an easy to use copying machine by providing an input means that can select vairable magnifications and providing a function for setting the number of copying sheets to said input means. CONSTITUTION:Displays are so constituted as to be lighted dynamically, and JD1-JD9 are so constituted that the displays assigned by the combinations of segment signals SEG-a SeG-g driven by digit driving signals are lighted. A key input circuit is so constituted as to read input data when a key matrix is subjected to key scan controlling by a control circuit. More specifically, the states of keys are read via the signals KEY 0-KEY 3 inputted to a port ja by key scan signals Digit 1-Digit 6 in the constitution of matrix. |
