HP 7475A Plotter
This Hewlett-Packard plotter is a drafting and graphic plotter that provides accurate engineering drawings, charts, and graphs. Plotters like this one can plot on various materials and media other than regular paper, such as vellum and films. The plotter draws onto the paper using very fine pens that come in different colors and widths with fiber tips, roller ball tips, or drafting pen tips. The HP 7475A plotter has 6-pens for plotting on 11 X 17 inch media.