1. Why does the POS display always flash?
Answer: Check if the signal line of the monitor connected to the pos machine is loose. You can remove it and re-plug it again, or the adjustment button at the bottom of the monitor is not well connected. It can be adjusted.
2, POS machine display black screen?
Answer: (1) Whether the power cable and data cable of the monitor are connected properly; whether the monitor can be changed to another computer can display normally. (2) Whether the data line of the display is broken or deformed.
3, POS machine small ticket printer can not play a small ticket?
A: Check if the printer's power and data points are loose; whether the printer self-test can pass (detection method: when the printer is powered on, press the paper feed button, don't let go, then turn off the power, wait for 3 seconds, turn on the power, then Release the paper feed button. If the small ticket can be printed and there is no garbled code, the print hard font is normal; whether the printer can print normally on other computers; whether the printer data point is normal; whether the printer driver is installed normally.
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