Blank printouts can typically be attributed to the following reasons:
Incorrect Paper Type / Improper Paper Loading
1. Confirm Paper Type:
Mare sure you are using the thermal print paper, you can verify it by checking the packaging or the product listing on the manufacturer's website.
2. Check Paper Orientation:
Ensure that the thermal paper is loaded correctly. The thermal-sensitive side should be facing the print head. You can test this by scratching the surface of the thermal-sensitive side of print paper; it will leave a mark.
Here are demo videos about how to install paper roll correctly:
For T02:
For M02:
For M02S:
3. Verify if the QR code prints correctly:
Double-click the power button to print a self-test page. It should print as shown below.
4. If the issue persists, please contact our support team and provide the following information: