Hoping for help. I'm looking for a listing of parts used on this old OD400 unit. It was working great until a piece of paper jammed and a gear chipped a tooth. Some information on parts is needed; where to get parts listing or where gears could be bought and specs on them. This old machine has outlasted two newer units. Maybe an old one with bad motor or broken that could be salvaged for parts? Any ideas? A manual or a copy of one would be good also. Thanks Terry