A price checker is a device that scans the barcode or QR code of a product to retrieve its price and other information. A parking ticket validator, on the other hand, is a device that reads and validates parking tickets to ensure that they are valid and paid for.

To use a price checker as a parking ticket validator, the device would need to be modified to read and validate parking tickets instead of product barcodes. This could be done by updating the software and hardware of the device to recognize and process the information on the parking ticket.

When a customer enters a parking lot and takes a ticket, they would then present the ticket to the price checker, which would read and validate the ticket. If the ticket is valid and paid for, the price checker would display a message indicating that the customer can exit the parking lot without paying any additional fees. If the ticket is not valid or unpaid, the price checker would display a message indicating that the customer needs to pay the appropriate fee before exiting the parking lot.

Using a price checker as a parking ticket validator could potentially streamline the parking process and reduce the need for additional equipment and personnel.