Please see this TurboTax FAQ to print your tax return you filed this year (the return will need to be accepted): https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-get-a-copy-of-a-return-i-filed-this-year-in-turbotax-online/00/25932.
If it has not been accepted follow these steps:
Now, if you are having an issue printing your 2019 tax return please make sure you have the most recent version of Adobe PDF installed on your computer.
See this TurboTax FAQ for more information on troubleshooting printing issues in TurboTax:
https://ttlc.intuit.com/community/printing/help/troubleshoot-printing-issues/00/25958