To print all pages in a project,
On-Screen Takeoff caches all of the pages locally during the print preview process. If there is a large number of pages in a project or the plans are complex, this could take several minutes. (Caching is basically storing a temporary copy of something on the local hard drive so it can be transmitted to the printer.)
Printing a large number of pages may use significant system resources (memory). If you experience problems printing ALL images, try printing a range of pages or one page at a time. Contact a professional IT person to determine if you computer's or printer's resources are adequate for your purposes.