Hello @canvasconnection,
Thanks for posting in the Community. I'm here to help with printing your invoices.
While invoices printing in gobble de goop sounds a bit like an accounting book written by Dr. Seuss, that's not the result that I want you to have. First, I'd recommend clearing your browser's cache. Cache is stored in order to improve loading times but can interfere with processes. You can locate additional information about this, as well as steps for supported browsers, at the following link: Delete Or Disable Cache And Temporary Internet Files In Your Web Browser.
If your invoices should continue to print incorrectly, it would be good to follow the steps outlined in this article: Test Sequence For PDF Printing Issues. This will help to isolate and better determine the cause of the unexpected behavior when printing.
I'm confident that these resources will help you get back to business and printing invoices.
Don't hesitate to let me know if you should have any questions or need anything else. Wishing you a pleasant start to your week.