I want to mail my tax form with a check. And I want to keep a copy for my records.
See this TurboTax support FAQ for how to print and mail your tax return -
https://ttlc.intuit.com/turbotax-support/en-us/help-article/printers-printing/print-mail-return-turbotax-online/L5bwuqXGy_US_en_US?uid=m9d1tacb