| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that when prices are changed at any time, the price of an article when a buyer buys the article is higher than that when the buyer decides to buy since the buyer side can not fix the price when price information is received from outside by a radio equipments, etc., and electronically displayed. SOLUTION: The article price information 113 is changed at any time (step A1), received by an electronic price tag 4 through a store system 2, and reflected on a price display part 45 at any time (step A2). The buyer presses a button 46 once deciding to buy the article (step A3). Then the value on the price display part 45 at this time is stored in a price memory 47 (step A4). The store system 2 reads article information out of the price memory 47 in the electronic price tag 4 and an article information memory 49, compares the value of the article price information 113 corresponding to the article information with the value in the price memory 47 (step A6) and decides a small value as a selling price for checkout. |
