1.Insufficient battery power can affect printing quality. Please check the battery level of the printer. If it is below 30%, please charge it for 2-3 hours before printing.

Turn on the printer and double-click the power button to print the self-test page to check the printer’s battery level.

2.Adjust the print density in the app.

Click on “Print” and adjust the print density in the print preview.

3.Clean the print head.

Use alcohol wipes to clean the cutting section of the printer, especially where there are black lines, to make sure there is no adhesive residue or foreign objects on the print head. Please open the top cover of the printer and locate the print head shown below:

Please replace a new paper roll printing. Moisture exposure of the paper roll will affect the print quality. Please store the paper roll sealed in a dark, cool, and dry environment.

If the above steps do not resolve the issue, please print the template in the app and send us a photo of the printed template for troubleshooting. Poor quality of the original file or image may also affect printing results.

At the same time, please provide with us your order number, purchase date, and purchase platform.