Why are my printouts blank?

Why are my printouts blank? 

To ensure that the workbooks are printed correctly, we need to have control over the print process. This means that you have to use our print routines (rather than Excel’s) to preview and print the Tax Calculations and Return forms. You will find our print buttons on our toolbars and menus, or ribbons if you are using Excel 2007 or later. For example, to print a CT600 Tax Return in Excel 2007 or later, click on the Add-Ins ribbon and locate the BTC CT600 Solution group. Here click on Print BTC CT600 Solution Workbook. In earlier version of Excel, either locate the BTC CT600 Solution toolbar and click on the Print BTC CT600 Solution Workbook button, or select Tools->BTC CT600 Solution->Print from the Excel menu system. Once you have clicked the appropriate command button/menu item, you will be presented with a print dialog where you can control the print content.