Hello, the issue of the wrong question printer printing blank pages may be caused by the following problems. Please troubleshoot the issues according to the following steps:
1. Make sure the printing paper is thermal paper. If it's not made of thermal material, no text can be printed.
2. If the printer prints blank pages with the matching paper, it may be due to the paper not being installed correctly. Try placing the paper with the other side facing up.
3. You can try replacing the consumables with official ones for testing.
4. If the above solutions do not resolve the issue, it may be a problem with the machine itself.