| 摘要 |
PURPOSE:To obtain a system suitable to an electronic register, etc., for a landry by extending a date when an article is returned by one day automatically after update time, by providing a specific clocking circuit, a storage means, an arithmetic means, and a printing means. CONSTITUTION:A timer circuit 6 storing current time data, a storage means of storing current date data, and the 2nd storage means of storing the number of days required to return an ariticle are provided. Further, the 3rd storage means of storing update time data, an arithmetic means 1 which discriminates whether the current time data is later than the update time data or not and, when so, increases the number of days for service by one to find a date for return from the number of days for service and the current date data, and a printing means 9 of printing the return date are provided. |
