HP LaserJet 4P update + new toner cartridge

I finally got the 4P working perfectly, 2.5 years* after I got it. All it needed was a new toner cartridge. This video shows the first tests after installing the new cartridge. * This was filmed last year, so it was only 1.5 years between getting the printer and getting a new cartridge for it. This is why you've actually seen the printer present in my room for the past year - I have been using it and it continues to work perfect.