| 摘要 |
PURPOSE:To always display and print an accurate valid day, by operating an operation circuit for operating the valid day at every output of a timer. CONSTITUTION:A timer 8 set so that a time interval is shorter than the min. unit of the time data printed on a label and generating output at every set unit of said time interval is provided. This timer 8, a valid period setting part 7 and a digital clock 1 are connected to an AND gate 9 while the AND gate 9 is connected to an operation part 10 and further connected to a valid day memory part 3. In this constitution, a commodity name is called by the operation of a commodity name call part 6 and the valid period thereof is set by the valid period setting part 7.
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