How to Use the Thermal Printer Test Tool

1. Choose your paper size from the dropdown — the preview updates instantly.
2. Fill in your store and customer details in the left panel.
3. Use Randomize Items to test different receipt lengths.
4. Click Print Invoice — in the print dialog, set margins to None, scale to 100%, and turn off Headers and Footers.
5. If the printout is too wide or too narrow, try a different paper size and print again.