If it says printed and ready to mail then you will have to print and mail your tax return. Please follow one of the printing options below if you didn't print your return:
https://ttlc.intuit.com/replies/3301525
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.
If you prefer to e-file instead then follow the instructions below:
https://ttlc.intuit.com/replies/5561257