When I go to print my 2023 returns, it prints but nothing is on the sheets of paper

Here's How to Save a TurboTax Online Return to Your Computer. 

 

Also, instead of Printing your 2023 return, you can choose to 'Save a PDF File'.  Then print the PDF file you have saved.  If you open the PDF file and choose print, you should see the pages to be printed.

 

If you can see them, but your printer prints blank pages, check your Printer Settings.