The use of flying coin POS machine in mining

The use steps of POS machine are as follows:

1. Check in: check whether the power supply is plugged in and whether the telephone line is connected to the POS machine. After starting up, the first step is to check in. Generally, press 1 key to check in

1. Before using the POS machine, it is necessary to check whether the power supply is connected, whether the printer is normally connected to the host, and whether the POS printing paper is installed. 2. At the end of business every day, the operator should carry out "day end processing". In particular, when the POS machine needs to be replaced for some reason, the operator must finish "day end processing" before shutting down the machine for replacement. 3. Do not make repeated dections to cardholders e to repeated card swiping. During the transaction, if the purchase order is not printed out, the operator should first select the "reprint" function. If the voucher cannot be printed out after reprinting, the operator should select the "query current transaction" function to query the batch number and merchant serial number of the transaction, and then turn off the power to check whether the printer is connected correctly. After re plugging, the operator can select to print specific records for processing
if it still can't be printed, check the balance on the POS machine, and then check with the customer service center of UnionPay to see if the transaction has been reversed. If the reply is true, you can the consumption elements on the POS consumption form, and the cardholder can sign to take the goods, or you can cancel the transaction. Don't swipe the card again at will, or the cardholder will be repeatedly dected. 4. If the card swiping fails, you need to press the required transaction code key again to avoid taking other transactions as "consumption" and causing repeated dection. 5. Cardholder password input. In order to ensure the security of the transaction, the cardholder needs to input the correct bank card password ring the transaction of the public POS machine. If the cardholder's bank card has no reserved password, the operator directly presses the "confirm" key of the POS machine to carry out the transaction, and the transaction is successful. 6. Don't forget to ask the cardholder to sign on the purchase order. If the cardholder's signature is inconsistent with the reserved name on the back of the card or the letter on the front of the card, you can check with the issuing bank. 7. The transaction types on the printed purchase order should be carefully reviewed to avoid making "consumption" into "pre authorization" or making "return" into "consumption" and causing wrong account. 8. Return transaction can be returned in full or in part. If the return is not successful, do not return cash or ask the cardholder to take away the goods at will. You can handle it according to the POS prompt or contact UnionPay maintenance personnel. 9. Don't plug in or out the communication line. The communication interface of POS is a special interface (line interface), which can not be confused with each other. 10. For debit cards and cards of member banks that have not signed a manual card pressing agreement, the card pressing transaction is invalid and the issuing bank will not recognize it. Therefore, do not accept the card pressing transaction. The cashier can use the cash register to collect, return, exchange, price query, discount, cancel transaction and other operations. The functions of return, exchange and discount can be set to be controlled by the manager. The basic operation process of cashier's daily work can be divided into power on, entering sales, saving change, executing sales, checking out, exiting sales and shutting down. Determined by the sales function of the system, the cashier must input his or her password correctly when he or she is on the machine. Only after being confirmed by the system can he or she enter the sales status of the cash register normally. In the process of sales, all accounts will be automatically recorded in the account number of the cashier, until the time of exit from sales. The payment methods of sales settlement can be divided into RMB, check, credit card, gift certificate, etc