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How to cancel the credit card consumption of pos machine?
The cancellation method of pos credit card consumption is as follows:

1, press the "OK" key, please swipe your card;

2. Select "1". Cancel "to enter the function selection menu;

3. Enter the 6-digit supervisor password [default is 123456, and cancel the transaction and enter the supervisor password;

4. Enter the original transaction voucher number to cancel the transaction.

5. Press "Confirm" to pass, and press "Cancel" to exit the original transaction.

6. Display credit card. Please swipe your card to cancel the transaction and press "Confirm" to pass;

7. The cardholder confirms the amount on the keyboard and enters the bank card password [if there is no password, please press the confirmation key] Amount *. * * Ask the customer to enter the password: if there is no password, please press the confirm key;

9. Wait for the POS to reply, the transaction is successful, and the printer prints the transaction documents.

Further reading

POS(Point of sales), which means "point of sale" in Chinese, is a terminal reader equipped with barcode or OCR code technology, and has the function of teller of cash or barter bank. Its main task is to provide data services and management functions for commodity and media transactions, and to carry out non-cash settlement. POS is a multifunctional terminal. It can be installed in special merchants and acceptance outlets of credit cards, and connected with computers to realize automatic transfer of electronic funds. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer, and is safe, fast and reliable to use. It is difficult to obtain basic business information for bulk transactions, and the introduction of POS system is mainly to solve the blind spot of retail information management. An important part of chain branch management information system.

Functional use

Suitable for large and medium-sized supermarkets, chain stores, hypermarkets, large and medium-sized hotels and all high-level retail enterprises.

With the function of IC card, you can use membership card to issue IC cards and securities internally.

You can talk and show off.

Can be connected with a variety of peripherals such as scanning guns and printers.

It has the management functions of front-end and back-end sales, warehousing and distribution of large supermarket chains.

The catering type has the function of catering service, and can be externally connected with various peripherals such as multiple kitchen printers and handheld ordering machines.

It can realize unattended remote communication and data download with PC.

It has the function of Ethernet communication, and constitutes the real-time management system of the head office and branch network through ADSL broadband.