If your printer is not printing from a specific paper tray, here are a few steps you can take:

1. Check that the printer is properly connected to your device.
2. Check that the paper tray is full and the paper is properly loaded in the tray.
3. Check your printer and computer settings to make sure that the specific tray is selected.
4. Print a test page to check the print quality.
5. Replace or clean the print cartridge if necessary.
6. Check that the printer driver is up to date.