Hi @gearupadrian,

I'll take care of this query for you. 

The first thing I can suggest is to update Adobe Reader or the PDF Reader application you use. 

You can also save the print preview page as a PDF file. Use your PDF Reader application to open the file, and print it from there. You can follow the steps listed in this article: Test sequence for PDF printing issues. It's divided into 3 parts, which is to ensure you can print a local PDF file, view and print a PDF file from a browser, and is able to print a PDF file from QuickBooks Online.

On the other hand, if you have issues with printing sales forms, see this article: Print sales forms. You'll find specific troubleshooting steps for different browsers, as well as related articles for this topic. 

Have other questions in mind? Place them below, and I'll get back to you as soon as I can.