HP 7475 A Plotter Going Through Its Self Demo

Earlier today I picked up this amazing HewlettPackard 7475A desktop plotter from a local Craigslist ad. I purchased it from the original owner, who used it in his home machine shop, and later for his son while he was attending architectural school. This plotter dates back to 1985, and once fully restored should be able to plot images in multiple colors. Honestly, I m just beyond amazed that it not only works fantastically, but that the pens are still working 35 years later