If you can't get anything to print or export as PDF from any application, contact Apple Technical Support, Microsoft Technical Support, or the printer manufacturer. Always check the physical connection between the printer and the computer before calling, as the solution could be as simple as reconnecting a loose cable.

Also, consider what has changed on the system recently that could be affecting the printing or exporting process. For example, have you performed any of the following tasks lately?

Often, a change to the system directly corresponds to the appearance of a printing problem. Keep a record of changes made to the system as a resource for troubleshooting printing and other problems.