In its most basic form, this invention comprises a vector plotter having a plotter head mounted for relative movement over the surface of a plotting media in an X and Y coordinate system wherein a projecting dot-producing impact printhead is carried by the plotter head at a constant printing distance above the surface of the plotting media to replace the traditional plotting pen. A multi-head printhead is also disclosed capable of producing different sized dots to replace pens of different tip size. Also disclosed is a structure for providing the constant printing distance, a mechanism for maximizing ribbon life and control arrangements for providing desirable line quality.
