Hello, please confirm the following points:
1. Confirm whether the paper is installed correctly, and check for any paper jam issues.
2. Open the Deli Label Printer User Tool, select ""Restore Factory Defaults"" - ""Calibrate Label Threshold.""
3. On your computer, go to ""Control Panel"" - ""Devices and Printers"" - ""Right-click the printer icon"" - ""Printing Preferences"" - ""Page Setup"" - ""New,"" and configure the settings according to the actual paper specifications.