| 摘要 |
The billing device has at least one article-sensing station (23) with at least one reader (43, 47) for reading a marking present on an article (1), a display part (47) for displaying the prices and a printer (49) for producing an invoice. Furthermore, there are electronic switching means, in order to assign on the basis of random criteria to each article (1) sensed by the article-sensing station (23) at least one code symbol, compare the latter with stored winners and, if appropriate, assign to the article (1) a prize. Participation in such a draw makes customers refrain from theft and at the same time helps reduce staff. <IMAGE>
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