Abstract: A process and printer are described for the rapid printing of documents, wherein the paper is continuously moved in front of static pinpoint printing heads covering the entire section of the printing surface, transverse to the direction of movement of the paper, and the printing heads are controlled by coded pulses. The printed document is legible by the naked eye and at the same time directly assimilable by machine. Certain characters may be selected, and simultaneously printed on the documents. Printing may be done by electric-spark perforation of an opaque conductive support tape, and thereafter examined by observation in transparency of the illuminated perforations.