Thanks for joining the thread, @Advance Accounting.
At the moment, printing receipts using a thermal 80mm printers is unavailable in QuickBooks Online (QBO). Although, you can look for a third-party application that would help you accomplish this task in QuickBooks.
Simply go to the Apps menu and search for the app from there.
On the other hand, you can visit QuickBooks App Store to search for supported third-party apps. Please note that these apps may not work in some countries or regions.
To know more about setting up the printing settings and how to print multiple transactions, you can check out these articles:
You've got me here if you have any other questions about this concern. Just let me know by leaving a comment below. Wishing you and your business continued success.
