If you haven't e-filed them to IRS using QBO, you'll have the option to print them when you select the I'll file myself button (see screenshot below). You can purchase your 1099 kit for the pre-printed forms.
Here's how to print the forms:
Select the 1099 forms you want to print.
Preview and print sample.
Adjust the alignment by dragging the square to the place where it appears on your printout. Select Next.
Select vendors to print, then choose Next.
Print your 1099 forms.
For more information, you can check out these helpful articles: