If you encounter unclear printouts, you can perform a self-check using the following methods:
1. Confirm that you are using official NIIMBOT label paper. This machine only supports official NIIMBOT label paper.
2. Try pressing the power button once to feed one sheet of paper and then printing again.
3. Double-click the power button to print a self-check page. Take a photo of the self-check page and send it to customer service for assistance.