| 摘要 |
<p>A labelling apparatus comprises a printing unit and at least one printing label. The printing unit includes a heatable printing head for printing erasable indiciae such as pricing information on a zone of thermo-chromic film defined on the label. A heatable erasing head is provided for erasing the pricing indiciae. A barcode reader on the printing unit reads a barcode located on the label alongside the thermo-chromic zone. The label also includes pictorial or written representations of an item of stock on a shelf. The barcode is read by the printing unit and updated pricing information stored in the printing unit is then downloaded onto the thermo-chromic film via the printing head.</p> |
