Thanks for reaching out to Jotform Support. A printing option is not available to print all the submissions together. But what you can do is download all submissions as PDFs first.
In Tables, click the check box under the Search tab.
Click the Download All button and then click Download as PDF.
The downloaded PDF document will have the print option to print all the submissions together as one document.
Let us know if there's anything else we can help you with.