| 摘要 |
PURPOSE:To improve the working efficiency of a copying machine by abling copying operations only when the inputted cipher codes are in the prescribed corresponding relation with the cipher codes having been stored beforehand. CONSTITUTION:A setter for a number of copying sheets is provided. A CPU44 stores cipher codes beforehand in an RAM63, and when inputted with cipher codes from said setter, it collates the same with the inputted and stored cipher codes and when there is the predetermined corresponding relation between both, it ables copying operations. |
