Drivers can scan the QR code for credit cards. Only products that have been approved by the People's Bank of China and have obtained a license can be used with confidence. Open the POS machine, enter the operation interface, select the consumption button, enter the consumption amount according to the prompts, swipe the card or scan the card directly, and then ask the cardholder to enter the password , signature, the screen shows that the card payment is successful, and the amount swiped will be automatically transferred to the bank card of the POS machine holder after deducting the handling fee.
The principle of POS machine
The basic principle of the POS system is to first create product information in a computer file. Through the computer cash register online architecture, the barcode on the product can be passed through the cash register equipment. After being read directly by the optical reading device, product information such as unit price, department, discount, etc. can be displayed immediately, speeding up the speed and accuracy of checkout.
The detailed information of each product sales is automatically recorded, and then transmitted back to the computer through the online architecture. After computer calculation and processing, various sales statistical analysis information can be generated as the basis for operation and management. The POS machine reads the card The machine reads the cardholder's magnetic stripe information on the bank card, the POS operator enters the transaction amount, and the cardholder enters personal identification information, which is a password.
POS sends this information to the card-issuing bank system through the UnionPay center, completes the online transaction, gives information on success or failure, and prints corresponding bills. The application of POS realizes credit cards, debit cards, etc. Online consumption with bank cards ensures the safety, speed and accuracy of transactions, avoids the cumbersome labor of manually checking blacklists and placing orders, and improves work efficiency.