Hi @pauline12,
I'd like to know how you opened and printed your report.
Since it looks fine on your screen but prints blank, I recommend opening and printing your downloaded PDF through Adobe Acrobat Reader itself (rather than your browser). If one prints correctly there, the issue likely lies with your browser's print settings.
You may also want to ensure your printer has sufficient ink and updated drivers.
If the problem persists, here are additional resources that might help:
Should you have other concerns, feel free to drop by the Community.