Thanks for getting back to us, @llroberts.

Let me share additional information on removing invoices from the print queue. 

When selecting the batch printing the invoices, it'll open on the other tab, right-click and choose Print to trigger the system that you're going to print it. Once the print options pop up, close the tab. You will now go back to the QuickBooks Online (QBO) page and receive a prompt if you want to mark selected transactions as printed. Select Yes.

From there, all the invoices for printing will disappear. 

For more information about creating and sending invoices, consider checking out this article: Create invoices in QuickBooks Online.

You may also find the below links helpful:

• Email or print multiple invoices and sales forms
• Troubleshoot printing problems in Safari

Let me know in the comment section how things go on your end. I want to ensure this gets resolved for you. Have a good one!