Over the past 20 years, we believe everyone can experience the improvement and changes in our living standards. More and more physical stores such as supermarkets, catering, and life services have sprung up. All stores are generally using desktop pos cash registers, and of course they will encounter many problems. The following editor will bring you common faults and troubleshooting tips for desktop pos cash registers.

1. Why the cash drawer of the POS cash register cannot be closed or opened suddenly?

Answer: This phenomenon may be caused by the banknotes slipping into the back of the drawer of the cash drawer during the process of collecting money by the POS cash register, and the hook inside the cash drawer is stuck, causing it to fail to close. Just pull out the drawer and take out the stuck banknotes; if the cash drawer cannot be opened, check whether the connection between the cash drawer and the printer is connected properly; observe whether the guide rail of the cash drawer is deformed or is stuck by a hard object. It is difficult to close the cash box after it is opened. Check whether the foam in the cash box has been taken out. If the foam has been taken out, check whether the lock of the cash box has fallen off or the guide rail of the cash box has been deformed.

2. Why does the display of the POS cash register always flash?

Answer: Check whether the signal cable connecting the monitor to the POS cash register is loose, and re-insert it. Or the adjustment button at the bottom of the display is not in good contact, which can be adjusted to solve it.

3. POS cash register display black screen?

Answer: A. Whether there is no power supply. Check the power supply status of the chassis power interface and power cord, check whether the power interface and power cord of the main chassis are loose and whether the display is turned on. If the interface and power cord are damaged or broken, they should be replaced in time; confirm whether the power supply fan is exhausting.  

B. Whether the power cable and data cable of the display are connected properly; whether the display can be displayed normally when it is replaced by another computer.

C. Whether the data cable of the display is broken or deformed.

D. If you are working and the computer has an intermittent black screen, this is caused by unstable voltage, and it will return to normal when the voltage is stable.

4. The POS cash register scanner cannot scan the barcode?

Answer: Check the wiring of the scanning gun: the scanning gun should be connected to the keyboard interface or USB interface on the back of the POS machine first, and then connected to the computer keyboard through another adapter of the scanning gun (must not be connected to the mouse port); the host and the scanning gun Or if the wiring between the scanner and the keyboard is loose, if the wiring is loose, it may cause the computer to crash.

5. The POS cash register can't print receipts?

Answer: Whether the power and data cables of the printer are loose; whether the self-test of the printer passes (testing method: when the printer is powered on, press the paper feed button (do not let go), then turn off the power, stop for 3 seconds, turn on the power, Then release the paper feed key) If the small ticket can be printed out without garbled characters, it means that the printing hard font library is normal; whether the printer is connected to other computers can print normally; whether the printer data cable is normal; whether the printer driver is installed normally.

The above are common troubleshooting tips for desktop POS cash registers, which are applicable to general desktop POS machines. If it is a relatively new type of smart cash register on the market, it depends on the situation. Because the smart all-in-one cash register has already integrated the printing function and code scanning function, the structure is somewhat different from the traditional cash register. I hope it will be helpful to everyone.