I am trying to print my completed tax return. But it does not print -- blank pages or pages with no numbers, just the form. What's going on?

Please see this FAQ about troubleshooting printing issues:

https://ttlc.intuit.com/replies/3301671

Also maybe try to download the return again using this option:

Please log back in your TurboTax account and "add a state" to open the return back up (you are not really adding a state, just to open it back up), then select Tools on the left, Print Center and choose the print center, then select returns and choose to print just the tax return or to include all worksheets as well.

I do not see a “add a state” option. I’m tying to print the shorter version of my tax return not the 100+ page one

When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state. 

This will take you back to the 2020 online tax return.

Click on Tax Tools on the left side of the online program screen.  Then click on Print Center.  Then click on Print, save or preview this year's return.