This happens too often, and you’d think Windows would have figured out how to handle it by now.
When you print a document, it’s not sent directly to your printer. Instead, it gets placed in a queue. Once in the queue, Windows comes along and notices something needs to be printed, and sends it to the printer.
The problem is that sometimes the queue gets “stuck”, for lack of a better word.
It can be really, really frustrating. It’s also easy to fix.