!! ! Note:
1. Please fully charge the thermal printer before using it for the first time (do not charge while it is on).
2. Do not use the thermal printer while charging, as this would damage the motherboard.
3. The thermal printer must hold the power switch for 3 seconds to turn on/off.
4. Please use the 5V charger to charge according to the instructions to avoid damage to the machine (do not use fast charger).
5. Carefully plug in or out the charging cable when charging to avoid damage to the port with excessive force. Please disconnect the charging cable once the charging process is complete.
6. Disassembly, impact and extrusion are prohibited.
7. Keep thermal paper away from overheated sources, otherwise the thermal paper will turn black.
8. Do not use or charge the device in environments with high temperature, high humidity and excessive smoke, such as bathrooms, steam baths, open flames, etc.
9. If the device has a clear bulge, please stop using it.
10. Do not touch the print head to avoid burns.
11. Do not touch the sharp tear-off knife to avoid injury.