Hi, foundationsystemhawaii.

You can perform the steps provided by my colleague above first to isolate this issue. If ever the steps doesn't fix the issue, it would be best to contact the support again for further investigation. 

In the meantime, you can try sending the invoice to your email address and try printing them from there if it works.

As of now, you have the option to use your own form styles by exporting custom invoice form styles to QuickBooks. For the detailed instructions, you may check this article: Import custom form styles for invoices or estimates.

Please know that I'm just a post away should you need anything else concerning QuickBooks. I want to make sure you're taken care of. Have a wonderful day.