Client: I think the printer’s broken, it has only been spitting out blank pages all day.

Me: It says it’s out of toner.

Client: Hold on, let me show you … See? Blank page.

Me: Have you refilled the toner recently?

Client: I just don’t think the page is making it from the computer to the printer.

Me: No, it’s out of toner. It says so right on the display here …

Client: Could it be a problem with our network?