Thank you for giving that a try and following up with the results, john_b1.

Since the issue is persisting I recommend reaching out to a member of the QuickBooks Desktop Support Team. Agents have specialized tools, like the ability to share your screen, to work alongside you and take a more in depth look to determine what's causing this problem with printing invoices. They'll also be able to escalate the issue further if need be. Here's how to get in touch with the team:

1. Go to Help, then select QuickBooks Desktop Help/Contact Us.
2. Select Contact Us.
3. Give a brief description of your issue, then select Continue.
4. Sign in to your Intuit account and select Continue and then Continue with my account.
5. We'll email you a single use code. Enter your code and select Continue. (If you have more than one account, select the account you want to use and then Continue.)
6. Select to chat with us or have us call you.
 

The following article provides these steps if you ever need them again in the future: Contact QuickBooks Desktop Support

Please don't hesitate to reach back out if you have any other questions. I'll be here to help in any way that I can.