Sometimes printing is blocked by a pop-up blocker.
When you go to print, you may see this yellow message along the top bar
You can click it and allow timewellscheduled.com to allow popups.
You can also manually add timewellscheduled.com as an exception by going to Preferences>Content and uncheck the Block pop-up windows box OR add TimeWellScheduled by clicking the Exceptions button.
When you go to print, you may see this message in the URL bar