1. Cut continuously
2. Print blank
3. Key and indicator light
4. Print blurring
5. Check the printer battery display through APP
6. Set the function of paper shortage threshold, which cannot be used, and no reaction occurs when you click the button
7. Stuck in "Sending... ", and then the printer was disconnected
8. The error message "Gap cannot be found" is displayed, and the printing cannot continue
9. The device is often disconnected and needs to be reconnected (most of the cases are automatically connected).
10. The left and right spacing of the printed output is somewhat large, which is not consistent with the setting on the APP, and the upper and lower spacing is also different from the actual
11. Report gap detection errors when printing a few papers
12. Detect paper and paper deficiency