I worked in an office building that had a dot matrix printer on the 4th floor. You could always tell when it was printing because the whole building would vibrate as it laid down characters with power and authority. If you moved an HP printer within 15 feet of the dot matrix printer the cheap plastic parts on the HP printer would spontaneously break which would cause HP to raise their monthly fees.
I worked in an office building that had a dot matrix printer on the 4th floor. You could always tell when it was printing because the whole building would vibrate as it laid down characters with power and authority. If you moved an HP printer within 15 feet of the dot matrix printer the cheap plastic parts on the HP printer would spontaneously break which would cause HP to raise their monthly fees.